Bug 801: WIP 1/2 - Add color attribute; Switch Shader instead of branching in shader; Update attributes and uniforms manually, drop ShaderState;

- ShaderCode
  - add int insertShaderSource(int shaderIdx, int position, Class<?> context, String path)
  - insertShaderSource(..): pos==-1 -> append code

- VectorUtil
  - add isVec3InTriangle3(..., float epsilon)
  - add testSeg2SegIntersection(..., float epsilon)
  - add testTri2SegIntersection(..., float epsilon)

- AffineTransform: Return result for chaining

- Font
  - Add pixel precise 'getPointsBounds(final AffineTransform transform, CharSequence string, float pixelSize)'
  - Rename getString*() -> getMetric*()
  - OTGlyph: Release _points field, no more used
  -

- Graph Triangulation
  - Count additional vertices in: Triangulator, CDTriangulator2D

- OutlineShape:
  - Allow skipping of 'transformOutlines2Quadratic', i.e. allow tagging
    OutlineShape to be quadratic_nurbs via 'setIsQuadraticNurbs()'

  - Clarify cleanup ot outlines in same method 'cleanupOutlines()'

  - Count additional vertices ..

- Graph Shader:
  - Start splitting and segmenting shader code for:
    - pass1 / pass2
    - features, i.e. sampleCont, color-channel, ..

44 files changed, 1209 insertions, 1185 deletions

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java b/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
deleted file mode 100644
index 9a5ed62d8..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
+++ /dev/null
@@ -1,106 +0,0 @@
-/**
- * Copyright 2010 JogAmp Community. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are
- * permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this list of
- *       conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice, this list
- *       of conditions and the following disclaimer in the documentation and/or other materials
- *       provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation are those of the
- * authors and should not be interpreted as representing official policies, either expressed
- * or implied, of JogAmp Community.
- */
-package jogamp.graph.curve.opengl;
-
-import javax.media.opengl.GL2ES2;
-import javax.media.opengl.GLException;
-
-import jogamp.graph.curve.opengl.shader.AttributeNames;
-import jogamp.opengl.Debug;
-
-import com.jogamp.graph.curve.opengl.RenderState;
-import com.jogamp.graph.curve.opengl.RegionRenderer;
-import com.jogamp.opengl.GLExtensions;
-import com.jogamp.opengl.util.glsl.ShaderCode;
-import com.jogamp.opengl.util.glsl.ShaderProgram;
-import com.jogamp.opengl.util.glsl.ShaderState;
-
-public class RegionRendererImpl01 extends RegionRenderer {
-    private static final String CUSTOM_FP, CUSTOM_VP;
-    static {
-        Debug.initSingleton();
-        CUSTOM_VP = Debug.getProperty("jogl.debug.graph.curve.vp", false);
-        CUSTOM_FP = Debug.getProperty("jogl.debug.graph.curve.fp", false);
-    }
-
-    public RegionRendererImpl01(final RenderState rs, final int renderModes, final GLCallback enableCallback, final GLCallback disableCallback) {
-        super(rs, renderModes, enableCallback, disableCallback);
-    }
-
-    @Override
-    protected final boolean initImpl(GL2ES2 gl) {
-        final ShaderState st = getShaderState();
-        final ShaderCode rsVp, rsFp;
-        if( null != CUSTOM_VP ) {
-            rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, RegionRendererImpl01.class, null, null, CUSTOM_VP, true);
-        } else {
-            rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, RegionRendererImpl01.class, "shader", "shader/bin", getVertexShaderName(), true);
-        }
-        if( null != CUSTOM_FP ) {
-            rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, RegionRendererImpl01.class, null, null, CUSTOM_FP, true);
-        } else {
-            rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, RegionRendererImpl01.class, "shader", "shader/bin", getFragmentShaderName(), true);
-        }
-        rsVp.defaultShaderCustomization(gl, true, true);
-        // rsFp.defaultShaderCustomization(gl, true, true);
-        int pos = rsFp.addGLSLVersion(gl);
-        if( gl.isGLES2() && ! gl.isGLES3() ) {
-            pos = rsFp.insertShaderSource(0, pos, ShaderCode.createExtensionDirective(GLExtensions.OES_standard_derivatives, ShaderCode.ENABLE));
-        }
-        final String rsFpDefPrecision =  getFragmentShaderPrecision(gl);
-        if( null != rsFpDefPrecision ) {
-            rsFp.insertShaderSource(0, pos, rsFpDefPrecision);
-        }
-
-        final ShaderProgram sp = new ShaderProgram();
-        sp.add(rsVp);
-        sp.add(rsFp);
-
-        if( !sp.init(gl) ) {
-            throw new GLException("RegionRenderer: Couldn't init program: "+sp);
-        }
-        st.attachShaderProgram(gl, sp, false);
-        st.bindAttribLocation(gl, AttributeNames.VERTEX_ATTR_IDX, AttributeNames.VERTEX_ATTR_NAME);
-        st.bindAttribLocation(gl, AttributeNames.TEXCOORD_ATTR_IDX, AttributeNames.TEXCOORD_ATTR_NAME);
-
-        if(!sp.link(gl, System.err)) {
-            throw new GLException("RegionRenderer: Couldn't link program: "+sp);
-        }
-        st.useProgram(gl, true);
-
-        if(DEBUG) {
-            System.err.println("RegionRendererImpl01 initialized: " + Thread.currentThread()+" "+st);
-        }
-        return true;
-    }
-
-    @Override
-    protected final void destroyImpl(GL2ES2 gl) {
-        // NOP .. all will be destroyed via RenderState
-    }
-}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/RenderStateImpl.java b/src/jogl/classes/jogamp/graph/curve/opengl/RenderStateImpl.java
deleted file mode 100644
index 68f926b0a..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/RenderStateImpl.java
+++ /dev/null
@@ -1,73 +0,0 @@
-/**
- * Copyright 2010 JogAmp Community. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are
- * permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this list of
- *       conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice, this list
- *       of conditions and the following disclaimer in the documentation and/or other materials
- *       provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation are those of the
- * authors and should not be interpreted as representing official policies, either expressed
- * or implied, of JogAmp Community.
- */
-package jogamp.graph.curve.opengl;
-
-import java.nio.FloatBuffer;
-
-import javax.media.opengl.GLUniformData;
-
-import jogamp.graph.curve.opengl.shader.UniformNames;
-
-import com.jogamp.graph.curve.opengl.RenderState;
-import com.jogamp.graph.geom.Vertex;
-import com.jogamp.opengl.util.PMVMatrix;
-import com.jogamp.opengl.util.glsl.ShaderState;
-
-public class RenderStateImpl extends RenderState {
-    /**
-     * weight is equivalent to the
-     * global off-curve vertex weight.
-     * TODO: change to per vertex
-     */
-    private final GLUniformData gcu_Weight;
-    private final GLUniformData gcu_Alpha;
-    private final GLUniformData gcu_ColorStatic;
-
-    public RenderStateImpl(ShaderState st, Vertex.Factory<? extends Vertex> pointFactory, PMVMatrix pmvMatrix) {
-        super(st, pointFactory, pmvMatrix);
-
-        gcu_Weight = new GLUniformData(UniformNames.gcu_Weight, 1.0f);
-        st.ownUniform(gcu_PMVMatrix);
-        gcu_Alpha = new GLUniformData(UniformNames.gcu_Alpha, 1.0f);
-        st.ownUniform(gcu_Alpha);
-        gcu_ColorStatic = new GLUniformData(UniformNames.gcu_ColorStatic, 3, FloatBuffer.allocate(3));
-        st.ownUniform(gcu_ColorStatic);
-//        gcu_Strength = new GLUniformData(UniformNames.gcu_Strength, 3.0f);
-//        st.ownUniform(gcu_Strength);
-    }
-
-    @Override
-    public final GLUniformData getWeight() { return gcu_Weight; }
-    @Override
-    public final GLUniformData getAlpha() { return gcu_Alpha; }
-    @Override
-    public final GLUniformData getColorStatic() { return gcu_ColorStatic; }
-    //public final GLUniformData getStrength() { return gcu_Strength; }
-
-
-}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/VBORegion2PMSAAES2.java b/src/jogl/classes/jogamp/graph/curve/opengl/VBORegion2PMSAAES2.java
index e36f46878..4649a2714 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/VBORegion2PMSAAES2.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/VBORegion2PMSAAES2.java
@@ -33,13 +33,10 @@ import javax.media.opengl.GL2ES2;
 // FIXME: Subsume GL2GL3.GL_DRAW_FRAMEBUFFER -> GL2ES2.GL_DRAW_FRAMEBUFFER !
 import javax.media.opengl.GL;
 import javax.media.opengl.GLUniformData;
-import javax.media.opengl.fixedfunc.GLMatrixFunc;
 
 import jogamp.graph.curve.opengl.shader.AttributeNames;
 import jogamp.graph.curve.opengl.shader.UniformNames;
 
-import com.jogamp.common.nio.Buffers;
-import com.jogamp.graph.curve.Region;
 import com.jogamp.graph.curve.opengl.GLRegion;
 import com.jogamp.graph.curve.opengl.RegionRenderer;
 import com.jogamp.graph.curve.opengl.RenderState;
@@ -48,128 +45,171 @@ import com.jogamp.opengl.FBObject.Attachment;
 import com.jogamp.opengl.math.geom.AABBox;
 import com.jogamp.opengl.util.GLArrayDataServer;
 import com.jogamp.opengl.util.PMVMatrix;
-import com.jogamp.opengl.util.glsl.ShaderState;
+import com.jogamp.opengl.util.glsl.ShaderProgram;
 
 public class VBORegion2PMSAAES2  extends GLRegion {
     private static final boolean DEBUG_FBO_1 = false;
     private static final boolean DEBUG_FBO_2 = false;
-    private GLArrayDataServer verticeTxtAttr;
-    private GLArrayDataServer texCoordTxtAttr;
-    private GLArrayDataServer indicesTxtBuffer;
-    private GLArrayDataServer verticeFboAttr;
-    private GLArrayDataServer texCoordFboAttr;
+
+    // Pass-1:
+    private GLArrayDataServer gca_VerticesAttr;
+    private GLArrayDataServer gca_CurveParamsAttr;
+    private GLArrayDataServer gca_ColorsAttr;
+    private GLArrayDataServer indicesBuffer;
+    private ShaderProgram spPass1 = null;
+
+    // Pass-2:
+    private GLArrayDataServer gca_FboVerticesAttr;
+    private GLArrayDataServer gca_FboTexCoordsAttr;
     private GLArrayDataServer indicesFbo;
+    private final GLUniformData gcu_FboTexUnit;
+    private GLUniformData gcu_FboTexSize;
+    private final PMVMatrix fboPMVMatrix;
+    private final GLUniformData gcu_PMVMatrix02;
+    private boolean gcu_FboTexSize_dirty = true;
+    private boolean gcu_PMVMatrix02_dirty = true;
+    private ShaderProgram spPass2 = null;
 
     private FBObject fbo;
-    private final PMVMatrix fboPMVMatrix;
-    GLUniformData mgl_fboPMVMatrix;
 
     private int fboWidth = 0;
     private int fboHeight = 0;
     private boolean fboDirty = true;
-    GLUniformData mgl_ActiveTexture;
-    GLUniformData mgl_TextureSize;
 
     final int[] maxTexSize = new int[] { -1 } ;
 
+    public void useShaderProgram(final GL2ES2 gl, final RegionRenderer renderer, final int renderModes, final boolean pass1, final int quality, final int sampleCount) {
+        final RenderState rs = renderer.getRenderState();
+        final boolean updateLocation0 = renderer.useShaderProgram(gl, renderModes, pass1, quality, sampleCount);
+        final ShaderProgram sp = renderer.getRenderState().getShaderProgram();
+        final boolean updateLocation;
+        if( pass1 ) {
+            updateLocation = !sp.equals(spPass1);
+            spPass1 = sp;
+            rs.update(gl, updateLocation, renderModes, true);
+            if( updateLocation ) {
+                gcu_PMVMatrix02.setLocation(gl, sp.program());
+            }
+            rs.updateAttributeLoc(gl, updateLocation, gca_VerticesAttr);
+            rs.updateAttributeLoc(gl, updateLocation, gca_CurveParamsAttr);
+            if( null != gca_ColorsAttr ) {
+                rs.updateAttributeLoc(gl, updateLocation, gca_ColorsAttr);
+            }
+            System.err.println("XXX changedSP.p1 "+updateLocation+" / "+updateLocation0+", "+rs);
+        } else {
+            updateLocation = !sp.equals(spPass2);
+            spPass2 = sp;
+            rs.update(gl, updateLocation, renderModes, false);
+            rs.updateAttributeLoc(gl, updateLocation, gca_FboVerticesAttr);
+            rs.updateAttributeLoc(gl, updateLocation, gca_FboTexCoordsAttr);
+            rs.updateUniformDataLoc(gl, updateLocation, true, gcu_FboTexSize);
+            if( updateLocation ) {
+                gcu_FboTexSize.setLocation(gl, sp.program());
+            }
+            System.err.println("XXX changedSP.p2 "+updateLocation+" / "+updateLocation0+", "+rs);
+        }
+    }
+
     public VBORegion2PMSAAES2(final int renderModes, final int textureUnit) {
         super(renderModes);
         final int initialElementCount = 256;
-        fboPMVMatrix = new PMVMatrix();
-        mgl_fboPMVMatrix = new GLUniformData(UniformNames.gcu_PMVMatrix, 4, 4, fboPMVMatrix.glGetPMvMatrixf());
-        mgl_ActiveTexture = new GLUniformData(UniformNames.gcu_TextureUnit, textureUnit);
 
-        indicesTxtBuffer = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, initialElementCount, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
-        verticeTxtAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
+        // Pass 1:
+        indicesBuffer = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, initialElementCount, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
+
+        gca_VerticesAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
                                                       false, initialElementCount, GL.GL_STATIC_DRAW);
-        texCoordTxtAttr = GLArrayDataServer.createGLSL(AttributeNames.TEXCOORD_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
+
+        gca_CurveParamsAttr = GLArrayDataServer.createGLSL(AttributeNames.CURVEPARAMS_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
                                                        false, initialElementCount, GL.GL_STATIC_DRAW);
+
+        if( hasColorChannel() ) {
+            gca_ColorsAttr = GLArrayDataServer.createGLSL(AttributeNames.COLOR_ATTR_NAME, 4, GL2ES2.GL_FLOAT,
+                                                          false, initialElementCount, GL.GL_STATIC_DRAW);
+        } else {
+            gca_ColorsAttr = null;
+        }
+
+        // Pass 2:
+        fboPMVMatrix = new PMVMatrix();
+        gcu_PMVMatrix02 = new GLUniformData(UniformNames.gcu_PMVMatrix01, 4, 4, fboPMVMatrix.glGetPMvMatrixf());
+        gcu_FboTexUnit = new GLUniformData(UniformNames.gcu_FboTexUnit, textureUnit);
+
+        indicesFbo = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, 2, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
+        indicesFbo.puts((short) 0); indicesFbo.puts((short) 1); indicesFbo.puts((short) 3);
+        indicesFbo.puts((short) 1); indicesFbo.puts((short) 2); indicesFbo.puts((short) 3);
+        indicesFbo.seal(true);
+
+        gca_FboTexCoordsAttr = GLArrayDataServer.createGLSL(AttributeNames.CURVEPARAMS_ATTR_NAME, 2, GL2ES2.GL_FLOAT,
+                                                       false, 4, GL.GL_STATIC_DRAW);
+        gca_FboTexCoordsAttr.putf(0); gca_FboTexCoordsAttr.putf(0);
+        gca_FboTexCoordsAttr.putf(0); gca_FboTexCoordsAttr.putf(1);
+        gca_FboTexCoordsAttr.putf(1); gca_FboTexCoordsAttr.putf(1);
+        gca_FboTexCoordsAttr.putf(1); gca_FboTexCoordsAttr.putf(0);
+        gca_FboTexCoordsAttr.seal(true);
+
+        gca_FboVerticesAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
+                                                      false, 4, GL.GL_STATIC_DRAW);
     }
 
     @Override
     protected final void clearImpl(final GL2ES2 gl, final RegionRenderer renderer) {
-        if( null != indicesTxtBuffer ) {
-            indicesTxtBuffer.seal(gl, false);
-            indicesTxtBuffer.rewind();
+        if( null != indicesBuffer ) {
+            indicesBuffer.seal(gl, false);
+            indicesBuffer.rewind();
         }
-        if( null != verticeTxtAttr ) {
-            verticeTxtAttr.seal(gl, false);
-            verticeTxtAttr.rewind();
+        if( null != gca_VerticesAttr ) {
+            gca_VerticesAttr.seal(gl, false);
+            gca_VerticesAttr.rewind();
         }
-        if( null != texCoordTxtAttr ) {
-            texCoordTxtAttr.seal(gl, false);
-            texCoordTxtAttr.rewind();
+        if( null != gca_CurveParamsAttr ) {
+            gca_CurveParamsAttr.seal(gl, false);
+            gca_CurveParamsAttr.rewind();
         }
         fboDirty = true;
     }
 
     @Override
-    protected final void pushVertex(float[] coords, float[] texParams) {
-        verticeTxtAttr.putf(coords[0]);
-        verticeTxtAttr.putf(coords[1]);
-        verticeTxtAttr.putf(coords[2]);
-
-        texCoordTxtAttr.putf(texParams[0]);
-        texCoordTxtAttr.putf(texParams[1]);
-        texCoordTxtAttr.putf(texParams[2]);
+    protected final void pushVertex(float[] coords, float[] texParams, float[] color) {
+        gca_VerticesAttr.putf(coords[0]);
+        gca_VerticesAttr.putf(coords[1]);
+        gca_VerticesAttr.putf(coords[2]);
+
+        gca_CurveParamsAttr.putf(texParams[0]);
+        gca_CurveParamsAttr.putf(texParams[1]);
+        gca_CurveParamsAttr.putf(texParams[2]);
     }
 
     @Override
     protected final void pushIndex(int idx) {
-        indicesTxtBuffer.puts((short)idx);
+        indicesBuffer.puts((short)idx);
     }
 
     @Override
     protected void updateImpl(final GL2ES2 gl, final RegionRenderer renderer) {
-        if(null == indicesFbo) {
-            final ShaderState st = renderer.getShaderState();
-
-            indicesFbo = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, 2, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
-            indicesFbo.puts((short) 0); indicesFbo.puts((short) 1); indicesFbo.puts((short) 3);
-            indicesFbo.puts((short) 1); indicesFbo.puts((short) 2); indicesFbo.puts((short) 3);
-            indicesFbo.seal(true);
-
-            texCoordFboAttr = GLArrayDataServer.createGLSL(AttributeNames.TEXCOORD_ATTR_NAME, 2, GL2ES2.GL_FLOAT,
-                                                           false, 4, GL.GL_STATIC_DRAW);
-            st.ownAttribute(texCoordFboAttr, true);
-            texCoordFboAttr.putf(0); texCoordFboAttr.putf(0);
-            texCoordFboAttr.putf(0); texCoordFboAttr.putf(1);
-            texCoordFboAttr.putf(1); texCoordFboAttr.putf(1);
-            texCoordFboAttr.putf(1); texCoordFboAttr.putf(0);
-            texCoordFboAttr.seal(true);
-
-            verticeFboAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
-                                                          false, 4, GL.GL_STATIC_DRAW);
-            st.ownAttribute(verticeFboAttr, true);
-
-            st.ownAttribute(verticeTxtAttr, true);
-            st.ownAttribute(texCoordTxtAttr, true);
-
-            if(Region.DEBUG_INSTANCE) {
-                System.err.println("VBORegion2PMSAAES2 Create: " + this);
-            }
-        }
         // seal buffers
-        indicesTxtBuffer.seal(gl, true);
-        indicesTxtBuffer.enableBuffer(gl, false);
-        texCoordTxtAttr.seal(gl, true);
-        texCoordTxtAttr.enableBuffer(gl, false);
-        verticeTxtAttr.seal(gl, true);
-        verticeTxtAttr.enableBuffer(gl, false);
+        indicesBuffer.seal(gl, true);
+        indicesBuffer.enableBuffer(gl, false);
+        gca_CurveParamsAttr.seal(gl, true);
+        gca_CurveParamsAttr.enableBuffer(gl, false);
+        gca_VerticesAttr.seal(gl, true);
+        gca_VerticesAttr.enableBuffer(gl, false);
 
         // update all bbox related data
-        verticeFboAttr.seal(gl, false);
-        verticeFboAttr.rewind();
-        verticeFboAttr.putf(box.getMinX()); verticeFboAttr.putf(box.getMinY()); verticeFboAttr.putf(box.getMinZ());
-        verticeFboAttr.putf(box.getMinX()); verticeFboAttr.putf(box.getMaxY()); verticeFboAttr.putf(box.getMinZ());
-        verticeFboAttr.putf(box.getMaxX()); verticeFboAttr.putf(box.getMaxY()); verticeFboAttr.putf(box.getMinZ());
-        verticeFboAttr.putf(box.getMaxX()); verticeFboAttr.putf(box.getMinY()); verticeFboAttr.putf(box.getMinZ());
-        verticeFboAttr.seal(gl, true);
-        verticeFboAttr.enableBuffer(gl, false);
-
-        fboPMVMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
-        fboPMVMatrix.glLoadIdentity();
-        fboPMVMatrix.glOrthof(box.getMinX(), box.getMaxX(), box.getMinY(), box.getMaxY(), -1, 1);
+        gca_FboVerticesAttr.seal(gl, false);
+        {
+            final FloatBuffer fb = (FloatBuffer)gca_FboVerticesAttr.getBuffer();
+            fb.put( 2, box.getMinZ());
+            fb.put( 5, box.getMinZ());
+            fb.put( 8, box.getMinZ());
+            fb.put(11, box.getMinZ());
+        }
+        // Pending .. (follow fboDirty)
+        // gca_FboVerticesAttr.seal(gl, true);
+        // gca_FboVerticesAttr.enableBuffer(gl, false);
+        // fboPMVMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+        // fboPMVMatrix.glLoadIdentity();
+        // fboPMVMatrix.glOrthof(box.getMinX(), box.getMaxX(), box.getMinY(), box.getMaxY(), -1, 1);
 
         // push data 2 GPU ..
         indicesFbo.seal(gl, true);
@@ -187,7 +227,7 @@ public class VBORegion2PMSAAES2  extends GLRegion {
 
     @Override
     protected void drawImpl(final GL2ES2 gl, final RegionRenderer renderer, final int[/*1*/] sampleCount) {
-        if( 0 >= indicesTxtBuffer.getElementCount() ) {
+        if( 0 >= indicesBuffer.getElementCount() ) {
             if(DEBUG_INSTANCE) {
                 System.err.printf("VBORegion2PMSAAES2.drawImpl: Empty%n");
             }
@@ -277,58 +317,51 @@ public class VBORegion2PMSAAES2  extends GLRegion {
                 final float minY = box.getMinY()-diffObjBorderHeight;
                 final float maxX = box.getMaxX()+diffObjBorderWidth+diffObjWidth;
                 final float maxY = box.getMaxY()+diffObjBorderHeight+diffObjHeight;
-                verticeFboAttr.seal(false);
+                gca_FboVerticesAttr.seal(false);
                 {
-                    final FloatBuffer fb = (FloatBuffer)verticeFboAttr.getBuffer();
+                    final FloatBuffer fb = (FloatBuffer)gca_FboVerticesAttr.getBuffer();
                     fb.put(0, minX); fb.put( 1, minY);
                     fb.put(3, minX); fb.put( 4, maxY);
                     fb.put(6, maxX); fb.put( 7, maxY);
                     fb.put(9, maxX); fb.put(10, minY);
                 }
-                verticeFboAttr.seal(true);
+                gca_FboVerticesAttr.seal(true);
                 fboPMVMatrix.glLoadIdentity();
                 fboPMVMatrix.glOrthof(minX, maxX, minY, maxY, -1, 1);
+                gcu_PMVMatrix02_dirty = true;
                 renderRegion2FBO(gl, rs, targetFboWidth, targetFboHeight, vpWidth, vpHeight, sampleCount);
             } else {
-                texCoordFboAttr.setVBOWritten(false);
+                gca_FboTexCoordsAttr.setVBOWritten(false);
             }
             // System.out.println("Scale: " + matrix.glGetMatrixf().get(1+4*3) +" " + matrix.glGetMatrixf().get(2+4*3));
             renderFBO(gl, rs, vpWidth, vpHeight, sampleCount[0]);
         }
     }
-    private void setTexSize(final GL2ES2 gl, final ShaderState st, final boolean firstPass, final int width, final int height, final int sampleCount) {
-        if(null == mgl_TextureSize) {
-            mgl_TextureSize = new GLUniformData(UniformNames.gcu_TextureSize, 3, Buffers.newDirectFloatBuffer(3));
-        }
-        final FloatBuffer texSize = (FloatBuffer) mgl_TextureSize.getBuffer();
-        texSize.put(0, width);
-        texSize.put(1, height);
-        if( firstPass ) {
-            texSize.put(2, 0f);
-        } else {
-            texSize.put(2, 1f+sampleCount);
-        }
-        st.uniform(gl, mgl_TextureSize);
-    }
 
     private void renderFBO(final GL2ES2 gl, final RenderState rs, final int width, final int height, final int sampleCount) {
-        final ShaderState st = rs.getShaderState();
-
         gl.glViewport(0, 0, width, height);
-        st.uniform(gl, mgl_ActiveTexture);
-        gl.glActiveTexture(GL.GL_TEXTURE0 + mgl_ActiveTexture.intValue());
-        setTexSize(gl, st, false, fboWidth, fboHeight, sampleCount);
+
+        if( gcu_FboTexSize_dirty ) {
+            gl.glUniform(gcu_FboTexSize);
+            gcu_FboTexSize_dirty = false;
+        }
+        if( gcu_PMVMatrix02_dirty ) {
+            gl.glUniform(gcu_PMVMatrix02);
+            gcu_PMVMatrix02_dirty = false;
+        }
+
+        gl.glActiveTexture(GL.GL_TEXTURE0 + gcu_FboTexUnit.intValue());
 
         fbo.use(gl, fbo.getSamplingSink());
-        verticeFboAttr.enableBuffer(gl, true);
-        texCoordFboAttr.enableBuffer(gl, true);
+        gca_FboVerticesAttr.enableBuffer(gl, true);
+        gca_FboTexCoordsAttr.enableBuffer(gl, true);
         indicesFbo.bindBuffer(gl, true); // keeps VBO binding
 
         gl.glDrawElements(GL2ES2.GL_TRIANGLES, indicesFbo.getElementCount() * indicesFbo.getComponentCount(), GL2ES2.GL_UNSIGNED_SHORT, 0);
 
         indicesFbo.bindBuffer(gl, false);
-        texCoordFboAttr.enableBuffer(gl, false);
-        verticeFboAttr.enableBuffer(gl, false);
+        gca_FboTexCoordsAttr.enableBuffer(gl, false);
+        gca_FboVerticesAttr.enableBuffer(gl, false);
         fbo.unuse(gl);
 
         // setback: gl.glActiveTexture(currentActiveTextureEngine[0]);
@@ -336,8 +369,6 @@ public class VBORegion2PMSAAES2  extends GLRegion {
 
     private void renderRegion2FBO(final GL2ES2 gl, final RenderState rs, final int targetFboWidth, final int targetFboHeight,
                                   final int vpWidth, final int vpHeight, final int[] sampleCount) {
-        final ShaderState st = rs.getShaderState();
-
         if( 0 >= targetFboWidth || 0 >= targetFboHeight ) {
             throw new IllegalArgumentException("fboSize must be greater than 0: "+targetFboWidth+"x"+targetFboHeight);
         }
@@ -373,29 +404,26 @@ public class VBORegion2PMSAAES2  extends GLRegion {
             fboHeight  = targetFboHeight;
         }
         fbo.bind(gl);
-        setTexSize(gl, st, true, vpWidth, vpHeight, sampleCount[0]);
 
         //render texture
         gl.glViewport(0, 0, fboWidth, fboHeight);
-        st.uniform(gl, mgl_fboPMVMatrix); // use orthogonal matrix
 
         gl.glClear(GL2ES2.GL_COLOR_BUFFER_BIT | GL2ES2.GL_DEPTH_BUFFER_BIT);
         renderRegion(gl);
         fbo.unbind(gl);
-
-        st.uniform(gl, rs.getPMVMatrix()); // switch back to real PMV matrix
+        fboDirty = false;
     }
 
     private void renderRegion(final GL2ES2 gl) {
-        verticeTxtAttr.enableBuffer(gl, true);
-        texCoordTxtAttr.enableBuffer(gl, true);
-        indicesTxtBuffer.bindBuffer(gl, true); // keeps VBO binding
+        gca_VerticesAttr.enableBuffer(gl, true);
+        gca_CurveParamsAttr.enableBuffer(gl, true);
+        indicesBuffer.bindBuffer(gl, true); // keeps VBO binding
 
-        gl.glDrawElements(GL2ES2.GL_TRIANGLES, indicesTxtBuffer.getElementCount() * indicesTxtBuffer.getComponentCount(), GL2ES2.GL_UNSIGNED_SHORT, 0);
+        gl.glDrawElements(GL2ES2.GL_TRIANGLES, indicesBuffer.getElementCount() * indicesBuffer.getComponentCount(), GL2ES2.GL_UNSIGNED_SHORT, 0);
 
-        indicesTxtBuffer.bindBuffer(gl, false);
-        texCoordTxtAttr.enableBuffer(gl, false);
-        verticeTxtAttr.enableBuffer(gl, false);
+        indicesBuffer.bindBuffer(gl, false);
+        gca_CurveParamsAttr.enableBuffer(gl, false);
+        gca_VerticesAttr.enableBuffer(gl, false);
     }
 
     @Override
@@ -403,34 +431,29 @@ public class VBORegion2PMSAAES2  extends GLRegion {
         if(DEBUG_INSTANCE) {
             System.err.println("VBORegion2PES2 Destroy: " + this);
         }
-        final ShaderState st = renderer.getShaderState();
         if(null != fbo) {
             fbo.destroy(gl);
             fbo = null;
         }
-        if(null != verticeTxtAttr) {
-            st.ownAttribute(verticeTxtAttr, false);
-            verticeTxtAttr.destroy(gl);
-            verticeTxtAttr = null;
+        if(null != gca_VerticesAttr) {
+            gca_VerticesAttr.destroy(gl);
+            gca_VerticesAttr = null;
         }
-        if(null != texCoordTxtAttr) {
-            st.ownAttribute(texCoordTxtAttr, false);
-            texCoordTxtAttr.destroy(gl);
-            texCoordTxtAttr = null;
+        if(null != gca_CurveParamsAttr) {
+            gca_CurveParamsAttr.destroy(gl);
+            gca_CurveParamsAttr = null;
         }
-        if(null != indicesTxtBuffer) {
-            indicesTxtBuffer.destroy(gl);
-            indicesTxtBuffer = null;
+        if(null != indicesBuffer) {
+            indicesBuffer.destroy(gl);
+            indicesBuffer = null;
         }
-        if(null != verticeFboAttr) {
-            st.ownAttribute(verticeFboAttr, false);
-            verticeFboAttr.destroy(gl);
-            verticeFboAttr = null;
+        if(null != gca_FboVerticesAttr) {
+            gca_FboVerticesAttr.destroy(gl);
+            gca_FboVerticesAttr = null;
         }
-        if(null != texCoordFboAttr) {
-            st.ownAttribute(texCoordFboAttr, false);
-            texCoordFboAttr.destroy(gl);
-            texCoordFboAttr = null;
+        if(null != gca_FboTexCoordsAttr) {
+            gca_FboTexCoordsAttr.destroy(gl);
+            gca_FboTexCoordsAttr = null;
         }
         if(null != indicesFbo) {
             indicesFbo.destroy(gl);
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/VBORegion2PVBAAES2.java b/src/jogl/classes/jogamp/graph/curve/opengl/VBORegion2PVBAAES2.java
index 4a12ed8d9..afaae3679 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/VBORegion2PVBAAES2.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/VBORegion2PVBAAES2.java
@@ -32,7 +32,6 @@ import java.nio.FloatBuffer;
 import javax.media.opengl.GL2ES2;
 import javax.media.opengl.GL;
 import javax.media.opengl.GLUniformData;
-import javax.media.opengl.fixedfunc.GLMatrixFunc;
 
 import jogamp.graph.curve.opengl.shader.AttributeNames;
 import jogamp.graph.curve.opengl.shader.UniformNames;
@@ -49,7 +48,7 @@ import com.jogamp.opengl.FBObject.TextureAttachment;
 import com.jogamp.opengl.math.geom.AABBox;
 import com.jogamp.opengl.util.GLArrayDataServer;
 import com.jogamp.opengl.util.PMVMatrix;
-import com.jogamp.opengl.util.glsl.ShaderState;
+import com.jogamp.opengl.util.glsl.ShaderProgram;
 
 public class VBORegion2PVBAAES2  extends GLRegion {
     private static final boolean DEBUG_FBO_1 = false;
@@ -85,38 +84,102 @@ public class VBORegion2PVBAAES2  extends GLRegion {
     }
 
 
-    private GLArrayDataServer verticeTxtAttr;
-    private GLArrayDataServer texCoordTxtAttr;
-    private GLArrayDataServer indicesTxtBuffer;
-    private GLArrayDataServer verticeFboAttr;
-    private GLArrayDataServer texCoordFboAttr;
+    // Pass-1:
+    private GLArrayDataServer gca_VerticesAttr;
+    private GLArrayDataServer gca_CurveParamsAttr;
+    private GLArrayDataServer gca_ColorsAttr;
+    private GLArrayDataServer indicesBuffer;
+    private ShaderProgram spPass1 = null;
+
+    // Pass-2:
+    private GLArrayDataServer gca_FboVerticesAttr;
+    private GLArrayDataServer gca_FboTexCoordsAttr;
     private GLArrayDataServer indicesFbo;
+    private final GLUniformData gcu_FboTexUnit;
+    private final GLUniformData gcu_FboTexSize;
+    private final PMVMatrix fboPMVMatrix;
+    private final GLUniformData gcu_PMVMatrix02;
+    private boolean gcu_FboTexSize_dirty = true;
+    private boolean gcu_PMVMatrix02_dirty = true;
+    private ShaderProgram spPass2 = null;
 
     private FBObject fbo;
     private TextureAttachment texA;
-    private final PMVMatrix fboPMVMatrix;
-    GLUniformData mgl_fboPMVMatrix;
 
     private int fboWidth = 0;
     private int fboHeight = 0;
     private boolean fboDirty = true;
-    GLUniformData mgl_ActiveTexture;
-    GLUniformData mgl_TextureSize;
 
     final int[] maxTexSize = new int[] { -1 } ;
 
+    public void useShaderProgram(final GL2ES2 gl, final RegionRenderer renderer, final int renderModes, final boolean pass1, final int quality, final int sampleCount) {
+        final RenderState rs = renderer.getRenderState();
+        final boolean updateLocation0 = renderer.useShaderProgram(gl, renderModes, pass1, quality, sampleCount);
+        final ShaderProgram sp = renderer.getRenderState().getShaderProgram();
+        final boolean updateLocation;
+        if( pass1 ) {
+            updateLocation = !sp.equals(spPass1);
+            spPass1 = sp;
+            rs.update(gl, updateLocation, renderModes, true);
+            rs.updateUniformLoc(gl, updateLocation, gcu_PMVMatrix02);
+            rs.updateAttributeLoc(gl, updateLocation, gca_VerticesAttr);
+            rs.updateAttributeLoc(gl, updateLocation, gca_CurveParamsAttr);
+            if( null != gca_ColorsAttr ) {
+                rs.updateAttributeLoc(gl, updateLocation, gca_ColorsAttr);
+            }
+            System.err.println("XXX changedSP.p1 "+updateLocation+" / "+updateLocation0+", "+rs);
+        } else {
+            updateLocation = !sp.equals(spPass2);
+            spPass2 = sp;
+            rs.update(gl, updateLocation, renderModes, false);
+            rs.updateAttributeLoc(gl, updateLocation, gca_FboVerticesAttr);
+            rs.updateAttributeLoc(gl, updateLocation, gca_FboTexCoordsAttr);
+            rs.updateUniformDataLoc(gl, updateLocation, true, gcu_FboTexUnit);
+            rs.updateUniformLoc(gl, updateLocation, gcu_FboTexSize);
+            System.err.println("XXX changedSP.p2 "+updateLocation+" / "+updateLocation0+", "+rs);
+        }
+    }
+
     public VBORegion2PVBAAES2(final int renderModes, final int textureUnit) {
         super(renderModes);
         final int initialElementCount = 256;
-        fboPMVMatrix = new PMVMatrix();
-        mgl_fboPMVMatrix = new GLUniformData(UniformNames.gcu_PMVMatrix, 4, 4, fboPMVMatrix.glGetPMvMatrixf());
-        mgl_ActiveTexture = new GLUniformData(UniformNames.gcu_TextureUnit, textureUnit);
 
-        indicesTxtBuffer = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, initialElementCount, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
-        verticeTxtAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
+        // Pass 1:
+        indicesBuffer = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, initialElementCount, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
+
+        gca_VerticesAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
                                                       false, initialElementCount, GL.GL_STATIC_DRAW);
-        texCoordTxtAttr = GLArrayDataServer.createGLSL(AttributeNames.TEXCOORD_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
+
+        gca_CurveParamsAttr = GLArrayDataServer.createGLSL(AttributeNames.CURVEPARAMS_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
                                                        false, initialElementCount, GL.GL_STATIC_DRAW);
+        if( hasColorChannel() ) {
+            gca_ColorsAttr = GLArrayDataServer.createGLSL(AttributeNames.COLOR_ATTR_NAME, 4, GL2ES2.GL_FLOAT,
+                                                          false, initialElementCount, GL.GL_STATIC_DRAW);
+        } else {
+            gca_ColorsAttr = null;
+        }
+
+        // Pass 2:
+        fboPMVMatrix = new PMVMatrix();
+        gcu_PMVMatrix02 = new GLUniformData(UniformNames.gcu_PMVMatrix02, 4, 4, fboPMVMatrix.glGetPMvMatrixf());
+        gcu_FboTexUnit = new GLUniformData(UniformNames.gcu_FboTexUnit, textureUnit);
+        gcu_FboTexSize = new GLUniformData(UniformNames.gcu_FboTexSize, 2, Buffers.newDirectFloatBuffer(2));
+
+        indicesFbo = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, 2, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
+        indicesFbo.puts((short) 0); indicesFbo.puts((short) 1); indicesFbo.puts((short) 3);
+        indicesFbo.puts((short) 1); indicesFbo.puts((short) 2); indicesFbo.puts((short) 3);
+        indicesFbo.seal(true);
+
+        gca_FboTexCoordsAttr = GLArrayDataServer.createGLSL(AttributeNames.FBO_TEXCOORDS_ATTR_NAME, 2, GL2ES2.GL_FLOAT,
+                                                           false, 4, GL.GL_STATIC_DRAW);
+        gca_FboTexCoordsAttr.putf(0); gca_FboTexCoordsAttr.putf(0);
+        gca_FboTexCoordsAttr.putf(0); gca_FboTexCoordsAttr.putf(1);
+        gca_FboTexCoordsAttr.putf(1); gca_FboTexCoordsAttr.putf(1);
+        gca_FboTexCoordsAttr.putf(1); gca_FboTexCoordsAttr.putf(0);
+        gca_FboTexCoordsAttr.seal(true);
+
+        gca_FboVerticesAttr = GLArrayDataServer.createGLSL(AttributeNames.FBO_VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
+                                                           false, 4, GL.GL_STATIC_DRAW);
     }
 
     @Override
@@ -125,88 +188,86 @@ public class VBORegion2PVBAAES2  extends GLRegion {
             System.err.println("VBORegion2PES2 Clear: " + this);
             // Thread.dumpStack();
         }
-        if( null != indicesTxtBuffer ) {
-            indicesTxtBuffer.seal(gl, false);
-            indicesTxtBuffer.rewind();
+        if( null != indicesBuffer ) {
+            indicesBuffer.seal(gl, false);
+            indicesBuffer.rewind();
         }
-        if( null != verticeTxtAttr ) {
-            verticeTxtAttr.seal(gl, false);
-            verticeTxtAttr.rewind();
+        if( null != gca_VerticesAttr ) {
+            gca_VerticesAttr.seal(gl, false);
+            gca_VerticesAttr.rewind();
         }
-        if( null != texCoordTxtAttr ) {
-            texCoordTxtAttr.seal(gl, false);
-            texCoordTxtAttr.rewind();
+        if( null != gca_CurveParamsAttr ) {
+            gca_CurveParamsAttr.seal(gl, false);
+            gca_CurveParamsAttr.rewind();
+        }
+        if( null != gca_ColorsAttr ) {
+            gca_ColorsAttr.seal(gl, false);
+            gca_ColorsAttr.rewind();
         }
         fboDirty = true;
     }
 
     @Override
-    protected final void pushVertex(float[] coords, float[] texParams) {
-        verticeTxtAttr.putf(coords[0]);
-        verticeTxtAttr.putf(coords[1]);
-        verticeTxtAttr.putf(coords[2]);
-
-        texCoordTxtAttr.putf(texParams[0]);
-        texCoordTxtAttr.putf(texParams[1]);
-        texCoordTxtAttr.putf(texParams[2]);
+    protected final void pushVertex(final float[] coords, final float[] texParams, float[] rgba) {
+        gca_VerticesAttr.putf(coords[0]);
+        gca_VerticesAttr.putf(coords[1]);
+        gca_VerticesAttr.putf(coords[2]);
+
+        gca_CurveParamsAttr.putf(texParams[0]);
+        gca_CurveParamsAttr.putf(texParams[1]);
+        gca_CurveParamsAttr.putf(texParams[2]);
+
+        if( null != gca_ColorsAttr ) {
+            if( null != rgba ) {
+                gca_ColorsAttr.putf(rgba[0]);
+                gca_ColorsAttr.putf(rgba[1]);
+                gca_ColorsAttr.putf(rgba[2]);
+                gca_ColorsAttr.putf(rgba[3]);
+            } else {
+                throw new IllegalArgumentException("Null color given for COLOR_CHANNEL rendering mode");
+            }
+        }
     }
 
     @Override
     protected final void pushIndex(int idx) {
-        indicesTxtBuffer.puts((short)idx);
+        indicesBuffer.puts((short)idx);
     }
 
     @Override
     protected void updateImpl(final GL2ES2 gl, final RegionRenderer renderer) {
         if(null == indicesFbo) {
-            final ShaderState st = renderer.getShaderState();
-
-            indicesFbo = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, 2, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
-            indicesFbo.puts((short) 0); indicesFbo.puts((short) 1); indicesFbo.puts((short) 3);
-            indicesFbo.puts((short) 1); indicesFbo.puts((short) 2); indicesFbo.puts((short) 3);
-            indicesFbo.seal(true);
-
-            texCoordFboAttr = GLArrayDataServer.createGLSL(AttributeNames.TEXCOORD_ATTR_NAME, 2, GL2ES2.GL_FLOAT,
-                                                           false, 4, GL.GL_STATIC_DRAW);
-            st.ownAttribute(texCoordFboAttr, true);
-            texCoordFboAttr.putf(0); texCoordFboAttr.putf(0);
-            texCoordFboAttr.putf(0); texCoordFboAttr.putf(1);
-            texCoordFboAttr.putf(1); texCoordFboAttr.putf(1);
-            texCoordFboAttr.putf(1); texCoordFboAttr.putf(0);
-            texCoordFboAttr.seal(true);
-
-            verticeFboAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
-                                                          false, 4, GL.GL_STATIC_DRAW);
-            st.ownAttribute(verticeFboAttr, true);
-
-            st.ownAttribute(verticeTxtAttr, true);
-            st.ownAttribute(texCoordTxtAttr, true);
-
             if(Region.DEBUG_INSTANCE) {
                 System.err.println("VBORegion2PVBAAES2 Create: " + this);
             }
         }
         // seal buffers
-        indicesTxtBuffer.seal(gl, true);
-        indicesTxtBuffer.enableBuffer(gl, false);
-        texCoordTxtAttr.seal(gl, true);
-        texCoordTxtAttr.enableBuffer(gl, false);
-        verticeTxtAttr.seal(gl, true);
-        verticeTxtAttr.enableBuffer(gl, false);
+        indicesBuffer.seal(gl, true);
+        indicesBuffer.enableBuffer(gl, false);
+        gca_CurveParamsAttr.seal(gl, true);
+        gca_CurveParamsAttr.enableBuffer(gl, false);
+        gca_VerticesAttr.seal(gl, true);
+        gca_VerticesAttr.enableBuffer(gl, false);
+        if( null != gca_ColorsAttr ) {
+            gca_ColorsAttr.seal(gl, true);
+            gca_ColorsAttr.enableBuffer(gl, false);
+        }
 
         // update all bbox related data
-        verticeFboAttr.seal(gl, false);
-        verticeFboAttr.rewind();
-        verticeFboAttr.putf(box.getMinX()); verticeFboAttr.putf(box.getMinY()); verticeFboAttr.putf(box.getMinZ());
-        verticeFboAttr.putf(box.getMinX()); verticeFboAttr.putf(box.getMaxY()); verticeFboAttr.putf(box.getMinZ());
-        verticeFboAttr.putf(box.getMaxX()); verticeFboAttr.putf(box.getMaxY()); verticeFboAttr.putf(box.getMinZ());
-        verticeFboAttr.putf(box.getMaxX()); verticeFboAttr.putf(box.getMinY()); verticeFboAttr.putf(box.getMinZ());
-        verticeFboAttr.seal(gl, true);
-        verticeFboAttr.enableBuffer(gl, false);
-
-        fboPMVMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
-        fboPMVMatrix.glLoadIdentity();
-        fboPMVMatrix.glOrthof(box.getMinX(), box.getMaxX(), box.getMinY(), box.getMaxY(), -1, 1);
+        gca_FboVerticesAttr.seal(gl, false);
+        {
+            final FloatBuffer fb = (FloatBuffer)gca_FboVerticesAttr.getBuffer();
+            fb.put( 2, box.getMinZ());
+            fb.put( 5, box.getMinZ());
+            fb.put( 8, box.getMinZ());
+            fb.put(11, box.getMinZ());
+        }
+        // Pending .. (follow fboDirty)
+        // gca_FboVerticesAttr.seal(gl, true);
+        // gca_FboVerticesAttr.enableBuffer(gl, false);
+        // fboPMVMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+        // fboPMVMatrix.glLoadIdentity();
+        // fboPMVMatrix.glOrthof(box.getMinX(), box.getMaxX(), box.getMinY(), box.getMaxY(), -1, 1);
 
         // push data 2 GPU ..
         indicesFbo.seal(gl, true);
@@ -223,7 +284,7 @@ public class VBORegion2PVBAAES2  extends GLRegion {
 
     @Override
     protected void drawImpl(final GL2ES2 gl, final RegionRenderer renderer, final int[/*1*/] sampleCount) {
-        if( 0 >= indicesTxtBuffer.getElementCount() ) {
+        if( 0 >= indicesBuffer.getElementCount() ) {
             if(DEBUG_INSTANCE) {
                 System.err.printf("VBORegion2PVBAAES2.drawImpl: Empty%n");
             }
@@ -387,56 +448,47 @@ public class VBORegion2PVBAAES2  extends GLRegion {
                 final float minY = box.getMinY()-diffObjBorderHeight;
                 final float maxX = box.getMaxX()+diffObjBorderWidth+diffObjWidth+diffObjResizeWidth;
                 final float maxY = box.getMaxY()+diffObjBorderHeight+diffObjHeight+diffObjResizeHeight;
-                verticeFboAttr.seal(false);
+                gca_FboVerticesAttr.seal(false);
                 {
-                    final FloatBuffer fb = (FloatBuffer)verticeFboAttr.getBuffer();
+                    final FloatBuffer fb = (FloatBuffer)gca_FboVerticesAttr.getBuffer();
                     fb.put(0, minX); fb.put( 1, minY);
                     fb.put(3, minX); fb.put( 4, maxY);
                     fb.put(6, maxX); fb.put( 7, maxY);
                     fb.put(9, maxX); fb.put(10, minY);
                 }
-                verticeFboAttr.seal(true);
+                gca_FboVerticesAttr.seal(true);
                 fboPMVMatrix.glLoadIdentity();
                 fboPMVMatrix.glOrthof(minX, maxX, minY, maxY, -1, 1);
+                gcu_PMVMatrix02_dirty = true;
+                useShaderProgram(gl, renderer, getRenderModes(), true, getQuality(), sampleCount[0]);
                 renderRegion2FBO(gl, rs, targetFboWidth, targetFboHeight, newFboWidth, newFboHeight, vpWidth, vpHeight, sampleCount[0]);
             }
+            useShaderProgram(gl, renderer, getRenderModes(), false, getQuality(), sampleCount[0]);
             renderFBO(gl, rs, targetFboWidth, targetFboHeight, vpWidth, vpHeight, sampleCount[0]);
         }
     }
-    private void setTexSize(final GL2ES2 gl, final ShaderState st, final boolean firstPass, final int width, final int height, final int sampleCount) {
-        if(null == mgl_TextureSize) {
-            mgl_TextureSize = new GLUniformData(UniformNames.gcu_TextureSize, 3, Buffers.newDirectFloatBuffer(3));
-        }
-        final FloatBuffer texSize = (FloatBuffer) mgl_TextureSize.getBuffer();
-        texSize.put(0, width);
-        texSize.put(1, height);
-        if( firstPass ) {
-            texSize.put(2, 0f);
-        } else {
-            texSize.put(2, sampleCount);
-        }
-        st.uniform(gl, mgl_TextureSize);
-    }
 
     private void renderFBO(final GL2ES2 gl, final RenderState rs, final int targetFboWidth, final int targetFboHeight,
                            final int vpWidth, final int vpHeight, final int sampleCount) {
-        final ShaderState st = rs.getShaderState();
-
         gl.glViewport(0, 0, vpWidth, vpHeight);
-        st.uniform(gl, mgl_ActiveTexture);
-        gl.glActiveTexture(GL.GL_TEXTURE0 + mgl_ActiveTexture.intValue());
-        setTexSize(gl, st, false, fboWidth, fboHeight, sampleCount);
+
+        if( gcu_FboTexSize_dirty ) {
+            gl.glUniform(gcu_FboTexSize);
+            gcu_FboTexSize_dirty = false;
+        }
+
+        gl.glActiveTexture(GL.GL_TEXTURE0 + gcu_FboTexUnit.intValue());
 
         fbo.use(gl, texA);
-        verticeFboAttr.enableBuffer(gl, true);
-        texCoordFboAttr.enableBuffer(gl, true);
+        gca_FboVerticesAttr.enableBuffer(gl, true);
+        gca_FboTexCoordsAttr.enableBuffer(gl, true);
         indicesFbo.bindBuffer(gl, true); // keeps VBO binding
 
         gl.glDrawElements(GL2ES2.GL_TRIANGLES, indicesFbo.getElementCount() * indicesFbo.getComponentCount(), GL2ES2.GL_UNSIGNED_SHORT, 0);
 
         indicesFbo.bindBuffer(gl, false);
-        texCoordFboAttr.enableBuffer(gl, false);
-        verticeFboAttr.enableBuffer(gl, false);
+        gca_FboTexCoordsAttr.enableBuffer(gl, false);
+        gca_FboVerticesAttr.enableBuffer(gl, false);
         fbo.unuse(gl);
 
         // setback: gl.glActiveTexture(currentActiveTextureEngine[0]);
@@ -445,8 +497,6 @@ public class VBORegion2PVBAAES2  extends GLRegion {
     private void renderRegion2FBO(final GL2ES2 gl, final RenderState rs,
                                   final int targetFboWidth, final int targetFboHeight, final int newFboWidth, final int newFboHeight,
                                   final int vpWidth, final int vpHeight, final int sampleCount) {
-        final ShaderState st = rs.getShaderState();
-
         if( 0 >= targetFboWidth || 0 >= targetFboHeight ) {
             throw new IllegalArgumentException("fboSize must be greater than 0: "+targetFboWidth+"x"+targetFboHeight);
         }
@@ -454,6 +504,12 @@ public class VBORegion2PVBAAES2  extends GLRegion {
         if(null == fbo) {
             fboWidth  = newFboWidth;
             fboHeight  = newFboHeight;
+            final FloatBuffer fboTexSize = (FloatBuffer) gcu_FboTexSize.getBuffer();
+            {
+                fboTexSize.put(0, fboWidth);
+                fboTexSize.put(1, fboHeight);
+                gcu_FboTexSize_dirty=true;
+            }
             fbo = new FBObject();
             fbo.reset(gl, fboWidth, fboHeight);
             // Shall not use bilinear (GL_LINEAR), due to own VBAA. Result is smooth w/o it now!
@@ -472,33 +528,46 @@ public class VBORegion2PVBAAES2  extends GLRegion {
             }
             fboWidth  = newFboWidth;
             fboHeight  = newFboHeight;
+            final FloatBuffer fboTexSize = (FloatBuffer) gcu_FboTexSize.getBuffer();
+            {
+                fboTexSize.put(0, fboWidth);
+                fboTexSize.put(1, fboHeight);
+                gcu_FboTexSize_dirty=true;
+            }
         } else {
             fbo.bind(gl);
         }
-        setTexSize(gl, st, true, vpWidth, vpHeight, sampleCount);
 
         //render texture
         gl.glViewport(0, 0, fboWidth, fboHeight);
-        st.uniform(gl, mgl_fboPMVMatrix); // use orthogonal matrix
+
+        if( gcu_PMVMatrix02_dirty ) {
+            gl.glUniform(gcu_PMVMatrix02);
+            gcu_PMVMatrix02_dirty = false;
+        }
 
         gl.glClear(GL2ES2.GL_COLOR_BUFFER_BIT | GL2ES2.GL_DEPTH_BUFFER_BIT);
         renderRegion(gl);
         fbo.unbind(gl);
         fboDirty = false;
-
-        st.uniform(gl, rs.getPMVMatrix()); // switch back to real PMV matrix
     }
 
     private void renderRegion(final GL2ES2 gl) {
-        verticeTxtAttr.enableBuffer(gl, true);
-        texCoordTxtAttr.enableBuffer(gl, true);
-        indicesTxtBuffer.bindBuffer(gl, true); // keeps VBO binding
+        gca_VerticesAttr.enableBuffer(gl, true);
+        gca_CurveParamsAttr.enableBuffer(gl, true);
+        if( null != gca_ColorsAttr ) {
+            gca_ColorsAttr.enableBuffer(gl, true);
+        }
+        indicesBuffer.bindBuffer(gl, true); // keeps VBO binding
 
-        gl.glDrawElements(GL2ES2.GL_TRIANGLES, indicesTxtBuffer.getElementCount() * indicesTxtBuffer.getComponentCount(), GL2ES2.GL_UNSIGNED_SHORT, 0);
+        gl.glDrawElements(GL2ES2.GL_TRIANGLES, indicesBuffer.getElementCount() * indicesBuffer.getComponentCount(), GL2ES2.GL_UNSIGNED_SHORT, 0);
 
-        indicesTxtBuffer.bindBuffer(gl, false);
-        texCoordTxtAttr.enableBuffer(gl, false);
-        verticeTxtAttr.enableBuffer(gl, false);
+        indicesBuffer.bindBuffer(gl, false);
+        if( null != gca_ColorsAttr ) {
+            gca_ColorsAttr.enableBuffer(gl, false);
+        }
+        gca_CurveParamsAttr.enableBuffer(gl, false);
+        gca_VerticesAttr.enableBuffer(gl, false);
     }
 
     @Override
@@ -507,35 +576,35 @@ public class VBORegion2PVBAAES2  extends GLRegion {
             System.err.println("VBORegion2PES2 Destroy: " + this);
             // Thread.dumpStack();
         }
-        final ShaderState st = renderer.getShaderState();
         if(null != fbo) {
             fbo.destroy(gl);
             fbo = null;
             texA = null;
         }
-        if(null != verticeTxtAttr) {
-            st.ownAttribute(verticeTxtAttr, false);
-            verticeTxtAttr.destroy(gl);
-            verticeTxtAttr = null;
+        if(null != gca_VerticesAttr) {
+            gca_VerticesAttr.destroy(gl);
+            gca_VerticesAttr = null;
+        }
+        if(null != gca_CurveParamsAttr) {
+            gca_CurveParamsAttr.destroy(gl);
+            gca_CurveParamsAttr = null;
         }
-        if(null != texCoordTxtAttr) {
-            st.ownAttribute(texCoordTxtAttr, false);
-            texCoordTxtAttr.destroy(gl);
-            texCoordTxtAttr = null;
+        if(null != gca_ColorsAttr) {
+            gca_ColorsAttr.destroy(gl);
+            gca_ColorsAttr = null;
         }
-        if(null != indicesTxtBuffer) {
-            indicesTxtBuffer.destroy(gl);
-            indicesTxtBuffer = null;
+        if(null != indicesBuffer) {
+            indicesBuffer.destroy(gl);
+            indicesBuffer = null;
         }
-        if(null != verticeFboAttr) {
-            st.ownAttribute(verticeFboAttr, false);
-            verticeFboAttr.destroy(gl);
-            verticeFboAttr = null;
+
+        if(null != gca_FboVerticesAttr) {
+            gca_FboVerticesAttr.destroy(gl);
+            gca_FboVerticesAttr = null;
         }
-        if(null != texCoordFboAttr) {
-            st.ownAttribute(texCoordFboAttr, false);
-            texCoordFboAttr.destroy(gl);
-            texCoordFboAttr = null;
+        if(null != gca_FboTexCoordsAttr) {
+            gca_FboTexCoordsAttr.destroy(gl);
+            gca_FboTexCoordsAttr = null;
         }
         if(null != indicesFbo) {
             indicesFbo.destroy(gl);
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/VBORegionSPES2.java b/src/jogl/classes/jogamp/graph/curve/opengl/VBORegionSPES2.java
index cf85628ad..659f64847 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/VBORegionSPES2.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/VBORegionSPES2.java
@@ -34,25 +34,33 @@ import jogamp.graph.curve.opengl.shader.AttributeNames;
 
 import com.jogamp.graph.curve.opengl.GLRegion;
 import com.jogamp.graph.curve.opengl.RegionRenderer;
+import com.jogamp.graph.curve.opengl.RenderState;
 import com.jogamp.opengl.util.GLArrayDataServer;
-import com.jogamp.opengl.util.glsl.ShaderState;
+import com.jogamp.opengl.util.glsl.ShaderProgram;
 
 public class VBORegionSPES2 extends GLRegion {
-    private GLArrayDataServer verticeAttr = null;
-    private GLArrayDataServer texCoordAttr = null;
+    private GLArrayDataServer gca_VerticesAttr = null;
+    private GLArrayDataServer gca_CurveParamsAttr = null;
+    private GLArrayDataServer gca_ColorsAttr;
     private GLArrayDataServer indicesBuffer = null;
-    private boolean buffersAttached = false;
 
     public VBORegionSPES2(final int renderModes) {
         super(renderModes);
         final int initialElementCount = 256;
         indicesBuffer = GLArrayDataServer.createData(3, GL2ES2.GL_SHORT, initialElementCount, GL.GL_STATIC_DRAW, GL.GL_ELEMENT_ARRAY_BUFFER);
 
-        verticeAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
-                                                   false, initialElementCount, GL.GL_STATIC_DRAW);
+        gca_VerticesAttr = GLArrayDataServer.createGLSL(AttributeNames.VERTEX_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
+                                                        false, initialElementCount, GL.GL_STATIC_DRAW);
 
-        texCoordAttr = GLArrayDataServer.createGLSL(AttributeNames.TEXCOORD_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
-                                                    false, initialElementCount, GL.GL_STATIC_DRAW);
+        gca_CurveParamsAttr = GLArrayDataServer.createGLSL(AttributeNames.CURVEPARAMS_ATTR_NAME, 3, GL2ES2.GL_FLOAT,
+                                                           false, initialElementCount, GL.GL_STATIC_DRAW);
+
+        if( hasColorChannel() ) {
+            gca_ColorsAttr = GLArrayDataServer.createGLSL(AttributeNames.COLOR_ATTR_NAME, 4, GL2ES2.GL_FLOAT,
+                                                          false, initialElementCount, GL.GL_STATIC_DRAW);
+        } else {
+            gca_ColorsAttr = null;
+        }
     }
 
     @Override
@@ -64,25 +72,40 @@ public class VBORegionSPES2 extends GLRegion {
             indicesBuffer.seal(gl, false);
             indicesBuffer.rewind();
         }
-        if( null != verticeAttr ) {
-            verticeAttr.seal(gl, false);
-            verticeAttr.rewind();
+        if( null != gca_VerticesAttr ) {
+            gca_VerticesAttr.seal(gl, false);
+            gca_VerticesAttr.rewind();
         }
-        if( null != texCoordAttr ) {
-            texCoordAttr.seal(gl, false);
-            texCoordAttr.rewind();
+        if( null != gca_CurveParamsAttr ) {
+            gca_CurveParamsAttr.seal(gl, false);
+            gca_CurveParamsAttr.rewind();
+        }
+        if( null != gca_ColorsAttr ) {
+            gca_ColorsAttr.seal(gl, false);
+            gca_ColorsAttr.rewind();
         }
     }
 
     @Override
-    protected final void pushVertex(float[] coords, float[] texParams) {
-        verticeAttr.putf(coords[0]);
-        verticeAttr.putf(coords[1]);
-        verticeAttr.putf(coords[2]);
-
-        texCoordAttr.putf(texParams[0]);
-        texCoordAttr.putf(texParams[1]);
-        texCoordAttr.putf(texParams[2]);
+    protected final void pushVertex(float[] coords, float[] texParams, float[] rgba) {
+        gca_VerticesAttr.putf(coords[0]);
+        gca_VerticesAttr.putf(coords[1]);
+        gca_VerticesAttr.putf(coords[2]);
+
+        gca_CurveParamsAttr.putf(texParams[0]);
+        gca_CurveParamsAttr.putf(texParams[1]);
+        gca_CurveParamsAttr.putf(texParams[2]);
+
+        if( null != gca_ColorsAttr ) {
+            if( null != rgba ) {
+                gca_ColorsAttr.putf(rgba[0]);
+                gca_ColorsAttr.putf(rgba[1]);
+                gca_ColorsAttr.putf(rgba[2]);
+                gca_ColorsAttr.putf(rgba[3]);
+            } else {
+                throw new IllegalArgumentException("Null color given for COLOR_CHANNEL rendering mode");
+            }
+        }
     }
 
     @Override
@@ -92,43 +115,67 @@ public class VBORegionSPES2 extends GLRegion {
 
     @Override
     protected void updateImpl(final GL2ES2 gl, final RegionRenderer renderer) {
-        if( !buffersAttached ) {
-            final ShaderState st = renderer.getShaderState();
-            st.ownAttribute(verticeAttr, true);
-            st.ownAttribute(texCoordAttr, true);
-            buffersAttached = true;
-        }
         // seal buffers
         indicesBuffer.seal(gl, true);
         indicesBuffer.enableBuffer(gl, false);
-        verticeAttr.seal(gl, true);
-        verticeAttr.enableBuffer(gl, false);
-        texCoordAttr.seal(gl, true);
-        texCoordAttr.enableBuffer(gl, false);
+        gca_VerticesAttr.seal(gl, true);
+        gca_VerticesAttr.enableBuffer(gl, false);
+        gca_CurveParamsAttr.seal(gl, true);
+        gca_CurveParamsAttr.enableBuffer(gl, false);
+        if( null != gca_ColorsAttr ) {
+            gca_ColorsAttr.seal(gl, true);
+            gca_ColorsAttr.enableBuffer(gl, false);
+        }
         if(DEBUG_INSTANCE) {
             System.err.println("VBORegionSPES2 idx "+indicesBuffer);
-            System.err.println("VBORegionSPES2 ver "+verticeAttr);
-            System.err.println("VBORegionSPES2 tex "+texCoordAttr);
+            System.err.println("VBORegionSPES2 ver "+gca_VerticesAttr);
+            System.err.println("VBORegionSPES2 tex "+gca_CurveParamsAttr);
         }
     }
 
+    private ShaderProgram spPass1 = null;
+
+    public void useShaderProgram(final GL2ES2 gl, final RegionRenderer renderer, final int renderModes, final int quality) {
+        final RenderState rs = renderer.getRenderState();
+        final boolean updateLocation0 = renderer.useShaderProgram(gl, renderModes, true, quality, 0);
+        final ShaderProgram sp = renderer.getRenderState().getShaderProgram();
+        final boolean updateLocation = !sp.equals(spPass1);
+        spPass1 = sp;
+
+        // update attribute-location and uniform data and location
+        rs.update(gl, updateLocation, renderModes, true);
+        rs.updateAttributeLoc(gl, updateLocation, gca_VerticesAttr);
+        rs.updateAttributeLoc(gl, updateLocation, gca_CurveParamsAttr);
+        if( null != gca_ColorsAttr ) {
+            rs.updateAttributeLoc(gl, updateLocation, gca_ColorsAttr);
+        }
+        System.err.println("XXX changedSP "+updateLocation+", "+rs);
+        System.err.println("XXX gca_VerticesAttr "+gca_VerticesAttr);
+        System.err.println("XXX gca_CurveParamsAttr "+gca_CurveParamsAttr);
+        System.err.println("XXX gca_ColorsAttr "+gca_ColorsAttr);
+    }
+
+
     @Override
     protected void drawImpl(final GL2ES2 gl, final RegionRenderer renderer, final int[/*1*/] sampleCount) {
+        final int renderModes = getRenderModes();
+        useShaderProgram(gl, renderer, renderModes, getQuality());
+
         if( 0 >= indicesBuffer.getElementCount() ) {
             if(DEBUG_INSTANCE) {
                 System.err.printf("VBORegionSPES2.drawImpl: Empty%n");
             }
             return; // empty!
         }
-        verticeAttr.enableBuffer(gl, true);
-        texCoordAttr.enableBuffer(gl, true);
+        gca_VerticesAttr.enableBuffer(gl, true);
+        gca_CurveParamsAttr.enableBuffer(gl, true);
         indicesBuffer.bindBuffer(gl, true); // keeps VBO binding
 
         gl.glDrawElements(GL2ES2.GL_TRIANGLES, indicesBuffer.getElementCount() * indicesBuffer.getComponentCount(), GL2ES2.GL_UNSIGNED_SHORT, 0);
 
         indicesBuffer.bindBuffer(gl, false);
-        texCoordAttr.enableBuffer(gl, false);
-        verticeAttr.enableBuffer(gl, false);
+        gca_CurveParamsAttr.enableBuffer(gl, false);
+        gca_VerticesAttr.enableBuffer(gl, false);
     }
 
     @Override
@@ -136,16 +183,17 @@ public class VBORegionSPES2 extends GLRegion {
         if(DEBUG_INSTANCE) {
             System.err.println("VBORegionSPES2 Destroy: " + this);
         }
-        final ShaderState st = renderer.getShaderState();
-        if(null != verticeAttr) {
-            st.ownAttribute(verticeAttr, false);
-            verticeAttr.destroy(gl);
-            verticeAttr = null;
+        if(null != gca_VerticesAttr) {
+            gca_VerticesAttr.destroy(gl);
+            gca_VerticesAttr = null;
+        }
+        if(null != gca_CurveParamsAttr) {
+            gca_CurveParamsAttr.destroy(gl);
+            gca_CurveParamsAttr = null;
         }
-        if(null != texCoordAttr) {
-            st.ownAttribute(texCoordAttr, false);
-            texCoordAttr.destroy(gl);
-            texCoordAttr = null;
+        if(null != gca_ColorsAttr) {
+            gca_ColorsAttr.destroy(gl);
+            gca_ColorsAttr = null;
         }
         if(null != indicesBuffer) {
             indicesBuffer.destroy(gl);
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/AttributeNames.java b/src/jogl/classes/jogamp/graph/curve/opengl/shader/AttributeNames.java
index b46661778..b2c73a2e4 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/AttributeNames.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/AttributeNames.java
@@ -28,18 +28,22 @@
 package jogamp.graph.curve.opengl.shader;
 
 public class AttributeNames {
-    /** The vertices index in an OGL object
+    /**
+     * The vertices index in an OGL object
      */
-    public static final int VERTEX_ATTR_IDX = 0; // FIXME: AMD needs this to be location 0 ? hu ?
     public static final String VERTEX_ATTR_NAME = "gca_Vertices";
 
-    /** The Texture Coord index in an OGL object
+    /**
+     * The Texture Coord index in an OGL object
      */
-    public static final int TEXCOORD_ATTR_IDX = 1;
-    public static final String TEXCOORD_ATTR_NAME = "gca_TexCoords";
+    public static final String CURVEPARAMS_ATTR_NAME = "gca_CurveParams";
 
-    /** The color index in an OGL object
+    /**
+     * The color index in an OGL object
      */
-    public static final int COLOR_ATTR_IDX = 2;
     public static final String COLOR_ATTR_NAME = "gca_Colors";
+
+    public static final String FBO_VERTEX_ATTR_NAME = "gca_FboVertices";
+    public static final String FBO_TEXCOORDS_ATTR_NAME = "gca_FboTexCoords";
+
 }
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/UniformNames.java b/src/jogl/classes/jogamp/graph/curve/opengl/shader/UniformNames.java
index ce23aadac..df5ba35f2 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/UniformNames.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/UniformNames.java
@@ -1,10 +1,11 @@
 package jogamp.graph.curve.opengl.shader;
 
 public class UniformNames {
-    public static final String gcu_PMVMatrix = "gcu_PMVMatrix"; // gcu_PMVMatrix[3]; // P, Mv, and Mvi
+    public static final String gcu_PMVMatrix01 = "gcu_PMVMatrix01"; // gcu_PMVMatrix[3]; // P, Mv, and Mvi
     public static final String gcu_ColorStatic = "gcu_ColorStatic";
-    public static final String gcu_Alpha = "gcu_Alpha";
     public static final String gcu_Weight = "gcu_Weight";
-    public static final String gcu_TextureUnit = "gcu_TextureUnit";
-    public static final String gcu_TextureSize = "gcu_TextureSize";
+
+    public static final String gcu_PMVMatrix02 = "gcu_PMVMatrix01"; // gcu_PMVMatrix[3]; // P, Mv, and Mvi
+    public static final String gcu_FboTexUnit = "gcu_FboTexUnit";
+    public static final String gcu_FboTexSize = "gcu_FboTexSize";
 }
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl
index c4d9db535..b8c68a924 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl
@@ -12,13 +12,19 @@ attribute vec4    gca_Vertices;
  *     hole or holeLike: 0 > y
  *     !hole           : 0 < y 
  *      
- *     0   == gcv_TexCoord.x : vertex-0 of triangle
- *     0.5 == gcv_TexCoord.x : vertex-1 of triangle
- *     1   == gcv_TexCoord.x : vertex-2 of triangle
+ *     0   == gcv_CurveParams.x : vertex-0 of triangle
+ *     0.5 == gcv_CurveParams.x : vertex-1 of triangle
+ *     1   == gcv_CurveParams.x : vertex-2 of triangle
  */
-attribute vec3    gca_TexCoords;
+attribute vec3    gca_CurveParams;
+
+attribute vec4    gca_FboVertices;
+attribute vec2    gca_FboTexCoords;
+
+#ifdef USE_COLOR_CHANNEL
+    attribute vec4    gca_Colors;
+#endif
 
-//attribute vec4    gca_Colors;
 //attribute vec3    gca_Normals;
 
 #endif // attributes_glsl
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass_norm-weight.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass_norm-weight.fp
index 20acfbac6..6e60fc044 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass_norm-weight.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass_norm-weight.fp
@@ -14,15 +14,10 @@
 #include uniforms.glsl
 #include varyings.glsl
 
-const vec3 zero3 = vec3(0);
-
 void main (void)
 {
-    vec3 color;
-    float alpha;
 
 // #include curverenderer01-pass1-curve-lineAA.glsl
 #include curverenderer01-pass1-curve-weight.glsl
 
-    mgl_FragColor = vec4(color, gcu_Alpha * alpha);
 }
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass_norm.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass_norm.fp
index 03d2f9408..18f06fff0 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass_norm.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass_norm.fp
@@ -14,15 +14,10 @@
 #include uniforms.glsl
 #include varyings.glsl
 
-const vec3 zero3 = vec3(0);
-
 void main (void)
 {
-    vec3 color;
-    float alpha;
 
 // #include curverenderer01-pass1-curve-lineAA.glsl
 #include curverenderer01-pass1-curve-simple.glsl
 
-    mgl_FragColor = vec4(color, gcu_Alpha * alpha);
 }
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_msaa-weight.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_msaa-weight.fp
index fba66c398..0a4f7b331 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_msaa-weight.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_msaa-weight.fp
@@ -15,28 +15,21 @@
 #include uniforms.glsl
 #include varyings.glsl
 
-const vec3 zero3 = vec3(0);
-
 void main (void)
 {
-    vec3 color;
-    float alpha;
-    
-    if( 0.0 < gcu_TextureSize.z ) {
+    if( 0.0 < gcu_FboTexSize.z ) {
         // Pass-2: Dump Texture
-        vec4 t = texture2D(gcu_TextureUnit, gcv_TexCoord.st);
+        vec4 t = texture2D(gcu_FboTexUnit, gcv_FboTexCoord.st);
         #if 0
         if( 0.0 == t.a ) {
           discard; // discard freezes NV tegra2 compiler
         }
         #endif
 
-        color = t.rgb;   
-        alpha = gcu_Alpha * t.a;
+        mgl_FragColor = t;
     } else {
 
 #include curverenderer01-pass1-curve-weight.glsl
 
     }
-    mgl_FragColor = vec4(color, alpha);
 }
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_msaa.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_msaa.fp
index e573bb347..c5cbb99b0 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_msaa.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_msaa.fp
@@ -15,36 +15,22 @@
 #include uniforms.glsl
 #include varyings.glsl
 
-const vec3 zero3 = vec3(0);
-
 void main (void)
 {
-    vec3 color;
-    float alpha;
-
-    if( 0.0 < gcu_TextureSize.z ) {
+    if( 0.0 < gcu_FboTexSize.z ) {
         // Pass-2: Dump Texture
-        vec4 t = texture2D(gcu_TextureUnit, gcv_TexCoord.st);
+        vec4 t = texture2D(gcu_FboTexUnit, gcv_FboTexCoord.st);
         #if 0
         if( 0.0 == t.a ) {
           discard; // discard freezes NV tegra2 compiler
         }
         #endif
 
-        color = t.rgb;   
-        #ifdef PREALPHA            
-            // alpha = mix(0.0, gcu_Alpha, t.a); // t.a one of [ 0.0, 1.0 ]
-            // ^^ for    = 0.0 == t.a ? 0.0 : gcu_Alpha;  
-            // mix(x, y, a) := x * ( 1 - a ) + y * a
-            alpha = gcu_Alpha;
-        #else
-            alpha = gcu_Alpha * t.a;
-        #endif
+        mgl_FragColor = t;
     } else {
 
 #include curverenderer01-pass1-curve-simple.glsl
 
     }
-    mgl_FragColor = vec4(color, alpha);
 }
 
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_vbaa-weight.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_vbaa-weight.fp
index cca67a219..e3bcd20ae 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_vbaa-weight.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_vbaa-weight.fp
@@ -15,18 +15,11 @@
 #include uniforms.glsl
 #include varyings.glsl
 
-const vec3 zero3 = vec3(0);
-
 #define GetSample(texUnit, texCoord, psize, cx, cy, offX, offY) texture2D(texUnit, texCoord + psize *  vec2(cx+offX, cy+offY))
 
 void main (void)
 {
-    vec3 color;
-    float alpha;
-    
-    // Note: gcu_Alpha is multiplied in pass2!
-    
-    if( 0.0 < gcu_TextureSize.z ) {
+    if( 0.0 < gcu_FboTexSize.z ) {
 
 // Quality: allsamples > [flipquad,rgss, quincunx] > poles
 #include curverenderer01-pass2-vbaa_allsamples_equal.glsl
@@ -48,5 +41,4 @@ void main (void)
 #include curverenderer01-pass1-curve-weight.glsl
 
     }
-    mgl_FragColor = vec4(color, alpha);
 }
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_vbaa.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_vbaa.fp
index e4dca15cb..52c719e46 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_vbaa.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass_vbaa.fp
@@ -15,23 +15,19 @@
 #include uniforms.glsl
 #include varyings.glsl
 
-const vec3 zero3 = vec3(0);
-
 #define GetSample(texUnit, texCoord, psize, cx, cy, offX, offY) texture2D(texUnit, texCoord + psize *  vec2(cx+offX, cy+offY))
 
 void main (void)
 {
-    vec3 color;
-    float alpha;
-
-    // Note: gcu_Alpha is multiplied in pass2!
-    
-    if( 0.0 < gcu_TextureSize.z ) {
+    if( 0.0 < gcu_FboTexSize.z ) {
 
 // Quality: allsamples > [flipquad,rgss, quincunx] > poles
-#include curverenderer01-pass2-vbaa_allsamples_equal.glsl
 
-// #include curverenderer01-pass2-vbaa_flipquad3.glsl
+        if( 0.0 >= gcu_FboTexSize.w ) {
+#include curverenderer01-pass2-vbaa_flipquad3.glsl
+        } else {
+#include curverenderer01-pass2-vbaa_allsamples_equal.glsl
+        }
 // #include curverenderer01-pass2-vbaa_flipquad2.glsl
 // #include curverenderer01-pass2-vbaa_flipquad.glsl
 // #include curverenderer01-pass2-vbaa_rgss.glsl
@@ -48,5 +44,4 @@ void main (void)
 #include curverenderer01-pass1-curve-simple.glsl
 
     }
-    mgl_FragColor = vec4(color, alpha);
 }
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-lineAA.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-lineAA.glsl
deleted file mode 100644
index 770ab3d71..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-lineAA.glsl
+++ /dev/null
@@ -1,20 +0,0 @@
-
-    // if( gcv_TexCoord.x == 10.0 && gcv_TexCoord.y == 10.0 ) {
-    if( gcv_TexCoord.z > 0.0 ) {
-         // pass-1: AA Lines
-         #if 1
-             // float dist = sqrt( gcv_TexCoord.x*gcv_TexCoord.x + gcv_TexCoord.y*gcv_TexCoord.y ); // magnitude
-             float dist = sqrt( gcv_TexCoord.y*gcv_TexCoord.y ); // magnitude
-             // float a = 1.0 - smoothstep (gcv_TexCoord.y-gcv_TexCoord.z, gcv_TexCoord.y, dist);
-             float r = gcv_TexCoord.x/3.0;
-             float wa = gcv_TexCoord.x+r;
-             float waHalf = wa/2.0;
-             float a = 1.0 - smoothstep (waHalf-2.0*r, waHalf, dist);
-             color = vec3(0, 0, 1.0); // gcu_ColorStatic.rgb;
-             alpha = a;
-         #else 
-             color = vec3(0, 0, 1.0);
-             alpha = 1.0;
-         #endif 
-    } else 
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-simple.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-simple.glsl
deleted file mode 100644
index cfa1b9000..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-simple.glsl
+++ /dev/null
@@ -1,21 +0,0 @@
-
-    if( gcv_TexCoord.x == 0.0 && gcv_TexCoord.y == 0.0 ) {
-        // pass-1: Lines
-        // color = vec3(0, 1.0, 0);
-        color = gcu_ColorStatic.rgb;
-        alpha = 1.0;
-    } else {
-        // pass-1: curves
-        vec2 rtex = vec2( abs(gcv_TexCoord.x), abs(gcv_TexCoord.y) - 0.1 );
-
-        vec2 dtx = dFdx(rtex);
-        vec2 dty = dFdy(rtex);
-          
-        vec2 f = vec2((dtx.y - dtx.x + 2.0*rtex.x*dtx.x), (dty.y - dty.x + 2.0*rtex.x*dty.x));
-        float position = rtex.y - (rtex.x * (1.0 - rtex.x));
-
-        // color = vec3(1.0, 0, 0);
-        color = gcu_ColorStatic.rgb;
-        alpha = clamp(0.5 - ( position/length(f) ) * sign(gcv_TexCoord.y), 0.0, 1.0);
-    }
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-simple.orig.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-simple.orig.glsl
deleted file mode 100644
index f73f24f12..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-simple.orig.glsl
+++ /dev/null
@@ -1,32 +0,0 @@
-
-    vec2 rtex = vec2( abs(gcv_TexCoord.x), abs(gcv_TexCoord.y) );
-
-    if( gcv_TexCoord.x == 0.0 && gcv_TexCoord.y == 0.0 ) {
-        // pass-1: Lines
-        color = gcu_ColorStatic.rgb;
-        alpha = 1.0;
-    } else if ( gcv_TexCoord.x > 0.0 && ( rtex.y > 0.0 || rtex.x == 1.0 ) ) {
-        // pass-1: curves
-        rtex.y -= 0.1;
-
-        if(rtex.y < 0.0 && gcv_TexCoord.y < 0.0) {
-            // discard; // freezes NV tegra2 compiler
-            color = zero3;
-            alpha = 0.0;
-        } else {
-            rtex.y = max(rtex.y, 0.0); // always >= 0 
-
-            vec2 dtx = dFdx(rtex);
-            vec2 dty = dFdy(rtex);
-              
-            vec2 f = vec2((dtx.y - dtx.x + 2.0*rtex.x*dtx.x), (dty.y - dty.x + 2.0*rtex.x*dty.x));
-            float position = rtex.y - (rtex.x * (1.0 - rtex.x));
-
-            color = gcu_ColorStatic.rgb;
-            alpha = clamp(0.5 - ( position/length(f) ) * sign(gcv_TexCoord.y), 0.0, 1.0);
-        }
-    } else {
-        color = zero3;
-        alpha = 0.0;
-    }
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-weight.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-weight.glsl
deleted file mode 100644
index 21e44a23f..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-weight.glsl
+++ /dev/null
@@ -1,25 +0,0 @@
-
-    if( gcv_TexCoord.x == 0.0 && gcv_TexCoord.y == 0.0 ) {
-        // pass-1: Lines
-        color = gcu_ColorStatic.rgb;
-        alpha = 1.0;
-    } else {
-        // pass-1: curves
-        vec2 rtex = vec2( abs(gcv_TexCoord.x), abs(gcv_TexCoord.y) - 0.1 );
-
-        vec2 dtx = dFdx(rtex);
-        vec2 dty = dFdy(rtex);
-          
-        float w = gcu_Weight;
-        float pd = ((2.0 - (2.0*w))*rtex.x*rtex.x) + 2.0*(w-1.0)*rtex.x + 1.0;
-        float position = rtex.y - ((w*rtex.x*(1.0 - rtex.x))/pd);
-
-        float aph = 2.0 - 2.0*w;
-        
-        float gd = (aph*rtex.x*rtex.x + 2.0*rtex.x + 1.0)*(aph*rtex.x*rtex.x + 2.0*rtex.x + 1.0);
-        vec2 f = vec2((dtx.y - (w*dtx.x*(1.0 - 2.0*rtex.x))/gd), (dty.y - (w*dty.x*(1.0 - 2.0*rtex.x))/gd));
-
-        color = gcu_ColorStatic.rgb;
-        alpha = clamp(0.5 - ( position/length(f) ) * sign(gcv_TexCoord.y), 0.0, 1.0);
-    }
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_lineAA.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_lineAA.glsl
new file mode 100644
index 000000000..79b3dd6fd
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_lineAA.glsl
@@ -0,0 +1,19 @@
+
+    // if( gcv_CurveParam.x == 10.0 && gcv_CurveParam.y == 10.0 ) {
+    if( gcv_CurveParam.z > 0.0 ) {
+         // pass-1: AA Lines
+         #if 1
+             // float dist = sqrt( gcv_CurveParam.x*gcv_CurveParam.x + gcv_CurveParam.y*gcv_CurveParam.y ); // magnitude
+             float dist = sqrt( gcv_CurveParam.y*gcv_CurveParam.y ); // magnitude
+             // float a = 1.0 - smoothstep (gcv_CurveParam.y-gcv_CurveParam.z, gcv_CurveParam.y, dist);
+             float r = gcv_CurveParam.x/3.0;
+             float wa = gcv_CurveParam.x+r;
+             float waHalf = wa/2.0;
+             float a = 1.0 - smoothstep (waHalf-2.0*r, waHalf, dist);
+             // mgl_FragColor = vec4(gcu_ColorStatic.rgb, gcu_ColorStatic.a * a);
+             mgl_FragColor = vec4(0, 0, 1.0, gcu_ColorStatic.a * a);
+         #else 
+             mgl_FragColor = vec4(0, 0, 1.0, 1.0);
+         #endif 
+    } else 
+
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_simple.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_simple.glsl
new file mode 100644
index 000000000..373e8d575
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_simple.glsl
@@ -0,0 +1,26 @@
+
+    if( gcv_CurveParam.x == 0.0 && gcv_CurveParam.y == 0.0 ) {
+        // pass-1: Lines
+#ifdef USE_COLOR_CHANNEL
+        mgl_FragColor = gcv_Color * gcu_ColorStatic;
+#else
+        mgl_FragColor = gcu_ColorStatic;
+#endif
+    } else {
+        // pass-1: curves
+        vec2 rtex = vec2( abs(gcv_CurveParam.x), abs(gcv_CurveParam.y) - 0.1 );
+
+        vec2 dtx = dFdx(rtex);
+        vec2 dty = dFdy(rtex);
+          
+        vec2 f = vec2((dtx.y - dtx.x + 2.0*rtex.x*dtx.x), (dty.y - dty.x + 2.0*rtex.x*dty.x));
+        float position = rtex.y - (rtex.x * (1.0 - rtex.x));
+
+        float a = clamp(0.5 - ( position/length(f) ) * sign(gcv_CurveParam.y), 0.0, 1.0);
+#ifdef USE_COLOR_CHANNEL
+        mgl_FragColor = vec4(gcv_Color.rgb * gcu_ColorStatic.rgb, gcv_Color.a * gcu_ColorStatic.a * a);
+#else
+        mgl_FragColor = vec4(gcu_ColorStatic.rgb, gcu_ColorStatic.a * a);
+#endif
+    }
+
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_simple.orig.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_simple.orig.glsl
new file mode 100644
index 000000000..92f0fc07b
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_simple.orig.glsl
@@ -0,0 +1,37 @@
+
+    vec2 rtex = vec2( abs(gcv_CurveParam.x), abs(gcv_CurveParam.y) );
+
+    if( gcv_CurveParam.x == 0.0 && gcv_CurveParam.y == 0.0 ) {
+        // pass-1: Lines
+#ifdef USE_COLOR_CHANNEL
+        mgl_FragColor = gcv_Color * gcu_ColorStatic;
+#else
+        mgl_FragColor = gcu_ColorStatic;
+#endif
+    } else if ( gcv_CurveParam.x > 0.0 && ( rtex.y > 0.0 || rtex.x == 1.0 ) ) {
+        // pass-1: curves
+        rtex.y -= 0.1;
+
+        if(rtex.y < 0.0 && gcv_CurveParam.y < 0.0) {
+            // discard; // freezes NV tegra2 compiler
+            mgl_FragColor = vec4(0);
+        } else {
+            rtex.y = max(rtex.y, 0.0); // always >= 0 
+
+            vec2 dtx = dFdx(rtex);
+            vec2 dty = dFdy(rtex);
+              
+            vec2 f = vec2((dtx.y - dtx.x + 2.0*rtex.x*dtx.x), (dty.y - dty.x + 2.0*rtex.x*dty.x));
+            float position = rtex.y - (rtex.x * (1.0 - rtex.x));
+
+            float a = clamp(0.5 - ( position/length(f) ) * sign(gcv_CurveParam.y), 0.0, 1.0);
+#ifdef USE_COLOR_CHANNEL
+            mgl_FragColor = vec4(gcv_Color.rgb * gcu_ColorStatic.rgb, gcv_Color.a * gcu_ColorStatic.a * a);
+#else
+            mgl_FragColor = vec4(gcu_ColorStatic.rgb, gcu_ColorStatic.a * a);
+#endif
+        }
+    } else {
+        mgl_FragColor = vec4(0);
+    }
+
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_weight.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_weight.glsl
new file mode 100644
index 000000000..1620a9532
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve_weight.glsl
@@ -0,0 +1,32 @@
+
+    if( gcv_CurveParam.x == 0.0 && gcv_CurveParam.y == 0.0 ) {
+        // pass-1: Lines
+#ifdef USE_COLOR_CHANNEL
+        mgl_FragColor = gcv_Color * gcu_ColorStatic;
+#else
+        mgl_FragColor = gcu_ColorStatic;
+#endif
+    } else {
+        // pass-1: curves
+        vec2 rtex = vec2( abs(gcv_CurveParam.x), abs(gcv_CurveParam.y) - 0.1 );
+
+        vec2 dtx = dFdx(rtex);
+        vec2 dty = dFdy(rtex);
+          
+        float w = gcu_Weight;
+        float pd = ((2.0 - (2.0*w))*rtex.x*rtex.x) + 2.0*(w-1.0)*rtex.x + 1.0;
+        float position = rtex.y - ((w*rtex.x*(1.0 - rtex.x))/pd);
+
+        float aph = 2.0 - 2.0*w;
+        
+        float gd = (aph*rtex.x*rtex.x + 2.0*rtex.x + 1.0)*(aph*rtex.x*rtex.x + 2.0*rtex.x + 1.0);
+        vec2 f = vec2((dtx.y - (w*dtx.x*(1.0 - 2.0*rtex.x))/gd), (dty.y - (w*dty.x*(1.0 - 2.0*rtex.x))/gd));
+
+        float a = clamp(0.5 - ( position/length(f) ) * sign(gcv_CurveParam.y), 0.0, 1.0);
+#ifdef USE_COLOR_CHANNEL
+        mgl_FragColor = vec4(gcv_Color.rgb * gcu_ColorStatic.rgb, gcv_Color.a * gcu_ColorStatic.a * a);
+#else
+        mgl_FragColor = vec4(gcu_ColorStatic.rgb, gcu_ColorStatic.a * a);
+#endif
+    }
+
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1.vp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1.vp
new file mode 100644
index 000000000..46729cfd0
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1.vp
@@ -0,0 +1,30 @@
+//Copyright 2010 JogAmp Community. All rights reserved.
+
+#if __VERSION__ >= 130
+  #define attribute in
+  #define varying out
+#endif
+
+#include uniforms.glsl
+#include attributes.glsl
+#include varyings.glsl
+
+void main(void)
+{
+    // gl_Position = gcu_PMVMatrix02[0] * gcu_PMVMatrix02[1] * vec4(gca_Vertices, 1);
+    gl_Position = gcu_PMVMatrix02[0] * gcu_PMVMatrix02[1] * gca_Vertices;
+#if 1
+    gcv_CurveParam = gca_CurveParams;
+#else
+    if( gcv_CurveParams.x <= -10.0 ) {
+        // vec4 tc = gcu_PMVMatrix02[0] * gcu_PMVMatrix02[1] * vec4(gca_CurveParams.xy, gca_Vertices.z, 1);
+        // gcv_CurveParams = vec3(tc.xy, gca_CurveParams.z);
+        gcv_CurveParam = gca_CurveParams;
+    } else {
+        gcv_CurveParam = gca_CurveParams;
+    }
+#endif
+#ifdef USE_COLOR_CHANNEL
+    gcv_Color = gca_Colors;
+#endif
+}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allequal.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allequal.glsl
new file mode 100644
index 000000000..da7feeaa7
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allequal.glsl
@@ -0,0 +1,96 @@
+        // Pass-2: AA on Texture
+        // Note: gcv_FboTexCoord is in center of sample pixels.
+
+        // float sampleCount = gcu_FboTexSize.z;
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
+
+        // Not only the poles (NW, SW, ..) but the whole edge!
+        const float sample_weight = 1.0 / ( SAMPLE_COUNT * SAMPLE_COUNT );
+
+        // const vec4 tex_weights = vec4(0.075, 0.06, 0.045, 0.025);
+        vec2 texCoord = gcv_FboTexCoord.st;
+
+        vec4 t;
+
+        // SampleCount 2 -> 4x
+        t  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -0.5)))*sample_weight; // NW
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  0.5)))*sample_weight; // SW
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  0.5)))*sample_weight; // SE
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -0.5)))*sample_weight; // NE
+        #if SAMPLE_COUNT > 2
+            // SampleCount 4 -> +12x = 16p
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -1.5)))*sample_weight; // NW -> SW Edge
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -0.5)))*sample_weight;
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  0.5)))*sample_weight;
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  1.5)))*sample_weight; // SW -> SE Edge
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  1.5)))*sample_weight; //
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  1.5)))*sample_weight; //
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  1.5)))*sample_weight; // SE -> NE Edge
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  0.5)))*sample_weight; // 
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -0.5)))*sample_weight; // 
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -1.5)))*sample_weight; // NE -> NW Edge
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -1.5)))*sample_weight; //
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -1.5)))*sample_weight; // NW - 1 (closed)
+
+            #if SAMPLE_COUNT > 4
+                // SampleCount 6 -> +20x = 36p
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -2.5)))*sample_weight; // NW -> SW Edge
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -1.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -0.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  0.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  1.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  2.5)))*sample_weight; // SW -> SE Edge
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  2.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  2.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  2.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  2.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  2.5)))*sample_weight; // SE -> NE Edge
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  1.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  0.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -0.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -1.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -2.5)))*sample_weight; // NE -> NW Edge
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -2.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -2.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -2.5)))*sample_weight;
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -2.5)))*sample_weight; // NW - 1 (closed)
+                #if SAMPLE_COUNT > 6
+                    // SampleCount 8 -> +28x = 64p
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -3.5)))*sample_weight; // NW -> SW Edge
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -2.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -1.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -0.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  0.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  1.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  2.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  3.5)))*sample_weight; // SW -> SE Edge
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  3.5)))*sample_weight; // SE -> NE Edge
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  2.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  1.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  0.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -0.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -1.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -2.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -3.5)))*sample_weight; // NE -> NW Edge
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -3.5)))*sample_weight;
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -3.5)))*sample_weight; // NW - 1 (closed)
+                #endif
+            #endif
+        #endif
+        #if 0
+        if(t.w == 0.0){
+            discard; // discard freezes NV tegra2 compiler
+        }
+        #endif
+        
+        mgl_FragColor = t;
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allprop01.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allprop01.glsl
new file mode 100644
index 000000000..436dd4ed4
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allprop01.glsl
@@ -0,0 +1,113 @@
+        // Pass-2: AA on Texture
+        // Note: gcv_FboTexCoord is in center of sample pixels.
+
+        float sampleCount = gcu_FboTexSize.z;
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
+
+        // Not only the poles (NW, SW, ..) but the whole edge!
+        float pixelCount = sampleCount * sampleCount;
+
+        // sampleCount [0, 1, 3, 5, 7] are undefined!
+        float layerCount = ( sampleCount / 2.0 );
+
+        // sum of all integer [layerCount .. 1] -> Gauss
+        float denom = ( layerCount / 2.0 ) * ( layerCount + 1.0 );
+
+        vec2 texCoord = gcv_FboTexCoord.st;
+
+        vec4 t;
+
+        // Layer-1: SampleCount 2 -> 4x
+        t  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -0.5))); // NW
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  0.5))); // SW
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  0.5))); // SE
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -0.5))); // NE
+
+        t *= (layerCount - 0.0) / ( denom * 4.0 ); // weight layer 1
+
+        if( sampleCount > 2.0 ) {
+            // Layer-2: SampleCount 4 -> +12x = 16p
+            vec4 tn = vec4(0);
+            tn  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -1.5))); // NW -> SW Edge
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -0.5)));
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  0.5)));
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  1.5))); // SW -> SE Edge
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  1.5))); //
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  1.5))); //
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  1.5))); // SE -> NE Edge
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  0.5))); // 
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -0.5))); // 
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -1.5))); // NE -> NW Edge
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -1.5))); //
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -1.5))); // NW - 1 (closed)
+
+            t += tn * (layerCount - 1) / ( denom * 12.0 ); // weight layer 2
+
+            if( sampleCount > 4.0 ) {
+                // Layer-3: SampleCount 6 -> +20x = 36p
+                tn  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -2.5))); // NW -> SW Edge
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -1.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -0.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  0.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  1.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  2.5))); // SW -> SE Edge
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  2.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  2.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  2.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  2.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  2.5))); // SE -> NE Edge
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  1.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  0.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -0.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -1.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -2.5))); // NE -> NW Edge
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -2.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -2.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -2.5)));
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -2.5))); // NW - 1 (closed)
+
+                t += tn * (layerCount - 2) / ( denom * 20.0 ); // weight layer 3
+
+                if( sampleCount > 6.0 ) {
+                    // Layer-4: SampleCount 8 -> +28x = 64p
+                    tn  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -3.5))); // NW -> SW Edge
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -2.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -1.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -0.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  0.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  1.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  2.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  3.5))); // SW -> SE Edge
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  3.5))); // SE -> NE Edge
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  2.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  1.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  0.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -0.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -1.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -2.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -3.5))); // NE -> NW Edge
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -3.5)));
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -3.5))); // NW - 1 (closed)
+
+                    t += tn * (layerCount - 3) / ( denom * 28.0 ); // weight layer 4
+                }
+            }
+        }
+
+        #if 0
+        if(t.w == 0.0){
+            discard; // discard freezes NV tegra2 compiler
+        }
+        #endif
+        
+        mgl_FragColor = t;
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allsamples_equal.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allsamples_equal.glsl
deleted file mode 100644
index 1d2451755..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allsamples_equal.glsl
+++ /dev/null
@@ -1,97 +0,0 @@
-        // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels.
-
-        float sampleCount = gcu_TextureSize.z;
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
-
-        // Not only the poles (NW, SW, ..) but the whole edge!
-        float sample_weight = 1.0 / ( sampleCount * sampleCount );
-
-        // const vec4 tex_weights = vec4(0.075, 0.06, 0.045, 0.025);
-        vec2 texCoord = gcv_TexCoord.st;
-
-        vec4 t;
-
-        // SampleCount 2 -> 4x
-        t  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -0.5)))*sample_weight; // NW
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  0.5)))*sample_weight; // SW
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  0.5)))*sample_weight; // SE
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -0.5)))*sample_weight; // NE
-        if( sampleCount > 2.0 ) {
-            // SampleCount 4 -> +12x = 16p
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -1.5)))*sample_weight; // NW -> SW Edge
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -0.5)))*sample_weight;
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  0.5)))*sample_weight;
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  1.5)))*sample_weight; // SW -> SE Edge
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  1.5)))*sample_weight; //
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  1.5)))*sample_weight; //
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  1.5)))*sample_weight; // SE -> NE Edge
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  0.5)))*sample_weight; // 
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -0.5)))*sample_weight; // 
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -1.5)))*sample_weight; // NE -> NW Edge
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -1.5)))*sample_weight; //
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -1.5)))*sample_weight; // NW - 1 (closed)
-
-            if( sampleCount > 4.0 ) {
-                // SampleCount 6 -> +20x = 36p
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -2.5)))*sample_weight; // NW -> SW Edge
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -1.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -0.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  0.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  1.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  2.5)))*sample_weight; // SW -> SE Edge
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  2.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  2.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  2.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  2.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  2.5)))*sample_weight; // SE -> NE Edge
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  1.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  0.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -0.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -1.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -2.5)))*sample_weight; // NE -> NW Edge
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -2.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -2.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -2.5)))*sample_weight;
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -2.5)))*sample_weight; // NW - 1 (closed)
-                if( sampleCount > 6.0 ) {
-                    // SampleCount 8 -> +28x = 64p
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -3.5)))*sample_weight; // NW -> SW Edge
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -2.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -1.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -0.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  0.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  1.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  2.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  3.5)))*sample_weight; // SW -> SE Edge
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  3.5)))*sample_weight; // SE -> NE Edge
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  2.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  1.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  0.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -0.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -1.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -2.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -3.5)))*sample_weight; // NE -> NW Edge
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -3.5)))*sample_weight;
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -3.5)))*sample_weight; // NW - 1 (closed)
-                }
-            }
-        }
-        #if 0
-        if(t.w == 0.0){
-            discard; // discard freezes NV tegra2 compiler
-        }
-        #endif
-        
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allsamples_prop01.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allsamples_prop01.glsl
deleted file mode 100644
index 79c89a444..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_allsamples_prop01.glsl
+++ /dev/null
@@ -1,114 +0,0 @@
-        // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels.
-
-        float sampleCount = gcu_TextureSize.z;
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
-
-        // Not only the poles (NW, SW, ..) but the whole edge!
-        float pixelCount = sampleCount * sampleCount;
-
-        // sampleCount [0, 1, 3, 5, 7] are undefined!
-        float layerCount = ( sampleCount / 2.0 );
-
-        // sum of all integer [layerCount .. 1] -> Gauss
-        float denom = ( layerCount / 2.0 ) * ( layerCount + 1.0 );
-
-        vec2 texCoord = gcv_TexCoord.st;
-
-        vec4 t;
-
-        // Layer-1: SampleCount 2 -> 4x
-        t  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -0.5))); // NW
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  0.5))); // SW
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  0.5))); // SE
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -0.5))); // NE
-
-        t *= (layerCount - 0.0) / ( denom * 4.0 ); // weight layer 1
-
-        if( sampleCount > 2.0 ) {
-            // Layer-2: SampleCount 4 -> +12x = 16p
-            vec4 tn = vec4(0);
-            tn  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -1.5))); // NW -> SW Edge
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -0.5)));
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  0.5)));
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  1.5))); // SW -> SE Edge
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  1.5))); //
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  1.5))); //
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  1.5))); // SE -> NE Edge
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  0.5))); // 
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -0.5))); // 
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -1.5))); // NE -> NW Edge
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -1.5))); //
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -1.5))); // NW - 1 (closed)
-
-            t += tn * (layerCount - 1) / ( denom * 12.0 ); // weight layer 2
-
-            if( sampleCount > 4.0 ) {
-                // Layer-3: SampleCount 6 -> +20x = 36p
-                tn  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -2.5))); // NW -> SW Edge
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -1.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -0.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  0.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  1.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  2.5))); // SW -> SE Edge
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  2.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  2.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  2.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  2.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  2.5))); // SE -> NE Edge
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  1.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  0.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -0.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -1.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -2.5))); // NE -> NW Edge
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -2.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -2.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -2.5)));
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -2.5))); // NW - 1 (closed)
-
-                t += tn * (layerCount - 2) / ( denom * 20.0 ); // weight layer 3
-
-                if( sampleCount > 6.0 ) {
-                    // Layer-4: SampleCount 8 -> +28x = 64p
-                    tn  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -3.5))); // NW -> SW Edge
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -2.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -1.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -0.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  0.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  1.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  2.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  3.5))); // SW -> SE Edge
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  3.5))); // SE -> NE Edge
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  2.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  1.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  0.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -0.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -1.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -2.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -3.5))); // NE -> NW Edge
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -3.5)));
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -3.5))); // NW - 1 (closed)
-
-                    t += tn * (layerCount - 3) / ( denom * 28.0 ); // weight layer 4
-                }
-            }
-        }
-
-        #if 0
-        if(t.w == 0.0){
-            discard; // discard freezes NV tegra2 compiler
-        }
-        #endif
-        
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad.glsl
index b5c1494f8..3e74fb9a6 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad.glsl
@@ -1,9 +1,9 @@
 
         // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels, origin is bottom left!
+        // Note: gcv_FboTexCoord is in center of sample pixels, origin is bottom left!
 
-        float sampleCount = gcu_TextureSize.z;
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
+        float sampleCount = gcu_FboTexSize.z;
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
 
         // Just poles (NW, SW, ..)
         float edge1H = sampleCount / 2.0;
@@ -14,20 +14,20 @@
         vec2 modPos = mod(normFragCoord, 2.0);
         float orient = mod(modPos.x + modPos.y, 2.0); // mirrored on all odd columns, alternating each row (checker-board pattern)
 
-        vec2 texCoord = gcv_TexCoord.st;
+        vec2 texCoord = gcv_FboTexCoord.st;
         vec4 t;
 
         if( 0.0 == orient ) {
                                                                                                // SWIPE LEFT -> RIGHT
-            t  = GetSample(gcu_TextureUnit, texCoord, psize, -edge1H,  edgeTH, 0.0, 0.0)*0.25; // upper-left  [p1]
-            t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeTH, -edge1H, 0.0, 0.0)*0.25; // lower-left  [p3]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeTH,  edge1H, 0.0, 0.0)*0.25; // upper-right [p2]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,  edge1H, -edgeTH, 0.0, 0.0)*0.25; // lower-right [p4]
+            t  = GetSample(gcu_FboTexUnit, texCoord, psize, -edge1H,  edgeTH, 0.0, 0.0)*0.25; // upper-left  [p1]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeTH, -edge1H, 0.0, 0.0)*0.25; // lower-left  [p3]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeTH,  edge1H, 0.0, 0.0)*0.25; // upper-right [p2]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,  edge1H, -edgeTH, 0.0, 0.0)*0.25; // lower-right [p4]
         } else {
-            t  = GetSample(gcu_TextureUnit, texCoord, psize, -edge1H, -edgeTH, 0.0, 0.0)*0.25; // lower-left  [p4]
-            t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeTH,  edge1H, 0.0, 0.0)*0.25; // upper-left  [p3]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeTH, -edge1H, 0.0, 0.0)*0.25; // lower-right [p2]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,  edge1H,  edgeTH, 0.0, 0.0)*0.25; // upper-right [p1]
+            t  = GetSample(gcu_FboTexUnit, texCoord, psize, -edge1H, -edgeTH, 0.0, 0.0)*0.25; // lower-left  [p4]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeTH,  edge1H, 0.0, 0.0)*0.25; // upper-left  [p3]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeTH, -edge1H, 0.0, 0.0)*0.25; // lower-right [p2]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,  edge1H,  edgeTH, 0.0, 0.0)*0.25; // upper-right [p1]
         }
 
 
@@ -37,6 +37,5 @@
         }
         #endif
         
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
+        mgl_FragColor = t;
 
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad2.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad2.glsl
index 98812861d..9e31e6bb7 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad2.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad2.glsl
@@ -1,17 +1,17 @@
 
         // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels, origin is bottom left!
+        // Note: gcv_FboTexCoord is in center of sample pixels, origin is bottom left!
         // 
         // Same as flipquad - but w/ rgss coordinates
 
-        float sampleCount = gcu_TextureSize.z;
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
+        float sampleCount = gcu_FboTexSize.z;
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
 
         vec2 normFragCoord = gl_FragCoord.xy - vec2(0.5, 0.5); // normalize center 0.5/0.5 -> 0/0
         vec2 modPos = mod(normFragCoord, 2.0);
         float orient = mod(modPos.x + modPos.y, 2.0); // mirrored on all odd columns, alternating each row (checker-board pattern)
 
-        vec2 texCoord = gcv_TexCoord.st;
+        vec2 texCoord = gcv_FboTexCoord.st;
         float edge1Q = ( sampleCount / 2.0 ) - 1.0;
 
         vec4 t;
@@ -20,15 +20,15 @@
 
         if( 0.0 == orient ) {
                                                                                                // SWIPE LEFT -> RIGHT
-            t  = GetSample(gcu_TextureUnit, texCoord, psize, -edge1Q,     0.0, -0.5,  0.5)*0.25; // upper-left  [p1]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,     0.0, -edge1Q, -0.5, -0.5)*0.25; // lower-left  [p3]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,     0.0,  edge1Q,  0.5,  0.5)*0.25; // upper-right [p2]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,  edge1Q,     0.0,  0.5, -0.5)*0.25; // lower-right [p4]
+            t  = GetSample(gcu_FboTexUnit, texCoord, psize, -edge1Q,     0.0, -0.5,  0.5)*0.25; // upper-left  [p1]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,     0.0, -edge1Q, -0.5, -0.5)*0.25; // lower-left  [p3]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,     0.0,  edge1Q,  0.5,  0.5)*0.25; // upper-right [p2]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,  edge1Q,     0.0,  0.5, -0.5)*0.25; // lower-right [p4]
         } else {
-            t  = GetSample(gcu_TextureUnit, texCoord, psize, -edge1Q,     0.0, -0.5, -0.5)*0.25; // lower-left  [p4]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,     0.0,  edge1Q, -0.5,  0.5)*0.25; // upper-left  [p3]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,     0.0, -edge1Q,  0.5, -0.5)*0.25; // lower-right [p2]
-            t += GetSample(gcu_TextureUnit, texCoord, psize,  edge1Q,     0.0,  0.5,  0.5)*0.25; // upper-right [p1]
+            t  = GetSample(gcu_FboTexUnit, texCoord, psize, -edge1Q,     0.0, -0.5, -0.5)*0.25; // lower-left  [p4]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,     0.0,  edge1Q, -0.5,  0.5)*0.25; // upper-left  [p3]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,     0.0, -edge1Q,  0.5, -0.5)*0.25; // lower-right [p2]
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,  edge1Q,     0.0,  0.5,  0.5)*0.25; // upper-right [p1]
         }
 
         #if 0
@@ -37,6 +37,5 @@
         }
         #endif
         
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
+        mgl_FragColor = t;
 
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad3.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad3.glsl
index edfbd9deb..7a2cb0358 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad3.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_flipquad3.glsl
@@ -1,97 +1,103 @@
 
         // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels, origin is bottom left!
+        // Note: gcv_FboTexCoord is in center of sample pixels, origin is bottom left!
         // 
         // Same as flipquad - but w/ rgss coordinates
 
-        float sampleCount = gcu_TextureSize.z;
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
+        // float sampleCount = gcu_FboTexSize.z;
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
 
         vec2 normFragCoord = gl_FragCoord.xy - vec2(0.5, 0.5); // normalize center 0.5/0.5 -> 0/0
         vec2 modPos = mod(normFragCoord, 2.0);
         float orient = mod(modPos.x + modPos.y, 2.0); // mirrored on all odd columns, alternating each row (checker-board pattern)
 
-        vec2 texCoord = gcv_TexCoord.st;
+        vec2 texCoord = gcv_FboTexCoord.st;
         vec4 t;
 
 // #define GetSample(texUnit, texCoord, psize, cx, cy, offX, offY) texture2D(texUnit, texCoord + psize *  vec2(cx+offX, cy+offY))
 
-        if( 1.0 == sampleCount ) {
-            t = texture2D(gcu_TextureUnit, texCoord);
+        #if SAMPLE_COUNT == 1
+
+            t = texture2D(gcu_FboTexUnit, texCoord);
+
+        #elif SAMPLE_COUNT < 4
 
-        } else if( 4.0 > sampleCount ) {
             // SampleCount 2 -> 2p 
             const float weight = 1.0 / 2.0;
-            float edge = ( sampleCount / 2.0 ) - 1.0;
+            const float edge = ( SAMPLE_COUNT / 2.0 ) - 1.0;
 
-            t  = GetSample(gcu_TextureUnit, texCoord, psize,      -edge,       edge, -0.5,  0.5)*weight;  // center
-            t += GetSample(gcu_TextureUnit, texCoord, psize,       edge,      -edge,  0.5, -0.5)*weight;  // center
+            t  = GetSample(gcu_FboTexUnit, texCoord, psize,      -edge,       edge, -0.5,  0.5)*weight;  // center
+            t += GetSample(gcu_FboTexUnit, texCoord, psize,       edge,      -edge,  0.5, -0.5)*weight;  // center
+
+        #elif SAMPLE_COUNT < 8
 
-        } else if( 8.0 > sampleCount ) {
             // SampleCount 4 -> 4p
             const float weight = 1.0 / 4.0;
-            float edgeS4_1Q = ( sampleCount / 2.0 ) - 1.0;
+            const float edgeS4_1Q = ( SAMPLE_COUNT / 2.0 ) - 1.0;
 
             if( 0.0 == orient ) {
                                                                                                            // SWIPE LEFT -> RIGHT
-                t  = GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0, -0.5,  0.5)*weight; // upper-left  [p1]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q, -0.5, -0.5)*weight; // lower-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q,  0.5,  0.5)*weight; // upper-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0,  0.5, -0.5)*weight; // lower-right [p4]
+                t  = GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0, -0.5,  0.5)*weight; // upper-left  [p1]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q, -0.5, -0.5)*weight; // lower-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q,  0.5,  0.5)*weight; // upper-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0,  0.5, -0.5)*weight; // lower-right [p4]
             } else {
-                t  = GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0, -0.5, -0.5)*weight; // lower-left  [p4]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q, -0.5,  0.5)*weight; // upper-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q,  0.5, -0.5)*weight; // lower-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0,  0.5,  0.5)*weight; // upper-right [p1]
+                t  = GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0, -0.5, -0.5)*weight; // lower-left  [p4]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q, -0.5,  0.5)*weight; // upper-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q,  0.5, -0.5)*weight; // lower-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0,  0.5,  0.5)*weight; // upper-right [p1]
             }
-        } else {
+
+        #else
+
             // SampleCount 8 -> 16p
             const float weight = 1.0 / 16.0;
             const float edgeS4_1Q = 1.0;
 
             if( 0.0 == orient ) {
                                                                                                            // SWIPE LEFT -> RIGHT
-                t  = GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0, -2.0-0.5, -2.0+0.5)*weight; // upper-left  [p1]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q, -2.0-0.5, -2.0-0.5)*weight; // lower-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q, -2.0-0.5, -2.0-0.5)*weight; // upper-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0, -2.0-0.5, -2.0-0.5)*weight; // lower-right [p4]
-
-                t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0, -2.0-0.5,  2.0-0.5)*weight; // lower-left  [p4]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q, -2.0-0.5,  2.0+0.5)*weight; // upper-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q, -2.0+0.5,  2.0-0.5)*weight; // lower-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0, -2.0+0.5,  2.0+0.5)*weight; // upper-right [p1]
-
-                t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0,  2.0-0.5, -2.0-0.5)*weight; // lower-left  [p4]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q,  2.0-0.5, -2.0+0.5)*weight; // upper-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q,  2.0+0.5, -2.0-0.5)*weight; // lower-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0,  2.0+0.5, -2.0+0.5)*weight; // upper-right [p1]
-
-                t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0,  2.0-0.5,  2.0+0.5)*weight; // upper-left  [p1]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q,  2.0-0.5,  2.0-0.5)*weight; // lower-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q,  2.0-0.5,  2.0-0.5)*weight; // upper-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0,  2.0-0.5,  2.0-0.5)*weight; // lower-right [p4]
+                t  = GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0, -2.0-0.5, -2.0+0.5)*weight; // upper-left  [p1]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q, -2.0-0.5, -2.0-0.5)*weight; // lower-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q, -2.0-0.5, -2.0-0.5)*weight; // upper-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0, -2.0-0.5, -2.0-0.5)*weight; // lower-right [p4]
+
+                t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0, -2.0-0.5,  2.0-0.5)*weight; // lower-left  [p4]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q, -2.0-0.5,  2.0+0.5)*weight; // upper-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q, -2.0+0.5,  2.0-0.5)*weight; // lower-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0, -2.0+0.5,  2.0+0.5)*weight; // upper-right [p1]
+
+                t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0,  2.0-0.5, -2.0-0.5)*weight; // lower-left  [p4]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q,  2.0-0.5, -2.0+0.5)*weight; // upper-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q,  2.0+0.5, -2.0-0.5)*weight; // lower-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0,  2.0+0.5, -2.0+0.5)*weight; // upper-right [p1]
+
+                t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0,  2.0-0.5,  2.0+0.5)*weight; // upper-left  [p1]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q,  2.0-0.5,  2.0-0.5)*weight; // lower-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q,  2.0-0.5,  2.0-0.5)*weight; // upper-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0,  2.0-0.5,  2.0-0.5)*weight; // lower-right [p4]
             } else {
-                t  = GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0, -2.0-0.5, -2.0-0.5)*weight; // lower-left  [p4]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q, -2.0-0.5, -2.0+0.5)*weight; // upper-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q, -2.0+0.5, -2.0-0.5)*weight; // lower-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0, -2.0+0.5, -2.0+0.5)*weight; // upper-right [p1]
-
-                t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0, -2.0-0.5,  2.0+0.5)*weight; // upper-left  [p1]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q, -2.0-0.5,  2.0-0.5)*weight; // lower-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q, -2.0-0.5,  2.0-0.5)*weight; // upper-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0, -2.0-0.5,  2.0-0.5)*weight; // lower-right [p4]
-
-                t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0,  2.0-0.5, -2.0+0.5)*weight; // upper-left  [p1]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q,  2.0-0.5, -2.0-0.5)*weight; // lower-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q,  2.0-0.5, -2.0-0.5)*weight; // upper-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0,  2.0-0.5, -2.0-0.5)*weight; // lower-right [p4]
-
-                t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeS4_1Q,        0.0,  2.0-0.5,  2.0-0.5)*weight; // lower-left  [p4]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0,  edgeS4_1Q,  2.0-0.5,  2.0+0.5)*weight; // upper-left  [p3]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,        0.0, -edgeS4_1Q,  2.0+0.5,  2.0-0.5)*weight; // lower-right [p2]
-                t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeS4_1Q,        0.0,  2.0+0.5,  2.0+0.5)*weight; // upper-right [p1]
+                t  = GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0, -2.0-0.5, -2.0-0.5)*weight; // lower-left  [p4]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q, -2.0-0.5, -2.0+0.5)*weight; // upper-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q, -2.0+0.5, -2.0-0.5)*weight; // lower-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0, -2.0+0.5, -2.0+0.5)*weight; // upper-right [p1]
+
+                t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0, -2.0-0.5,  2.0+0.5)*weight; // upper-left  [p1]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q, -2.0-0.5,  2.0-0.5)*weight; // lower-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q, -2.0-0.5,  2.0-0.5)*weight; // upper-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0, -2.0-0.5,  2.0-0.5)*weight; // lower-right [p4]
+
+                t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0,  2.0-0.5, -2.0+0.5)*weight; // upper-left  [p1]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q,  2.0-0.5, -2.0-0.5)*weight; // lower-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q,  2.0-0.5, -2.0-0.5)*weight; // upper-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0,  2.0-0.5, -2.0-0.5)*weight; // lower-right [p4]
+
+                t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeS4_1Q,        0.0,  2.0-0.5,  2.0-0.5)*weight; // lower-left  [p4]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0,  edgeS4_1Q,  2.0-0.5,  2.0+0.5)*weight; // upper-left  [p3]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,        0.0, -edgeS4_1Q,  2.0+0.5,  2.0-0.5)*weight; // lower-right [p2]
+                t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeS4_1Q,        0.0,  2.0+0.5,  2.0+0.5)*weight; // upper-right [p1]
             }
-        }
+
+        #endif
 
         #if 0
         if(t.w == 0.0){
@@ -99,6 +105,5 @@
         }
         #endif
         
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
+        mgl_FragColor = t;
 
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_fxaa3.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_fxaa3.glsl
index 6a2040577..015dc1b24 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_fxaa3.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_fxaa3.glsl
@@ -1,24 +1,24 @@
 
         // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels.
+        // Note: gcv_FboTexCoord is in center of sample pixels.
 
-        if( gcu_TextureSize.z < 4.0 ) {
+        if( gcu_FboTexSize.z < 4.0 ) {
             // FXAA-2
             const float FXAA_REDUCE_MIN  = (1.0/128.0);
             const float FXAA_REDUCE_MUL  = (1.0/8.0);
             const float FXAA_SPAN_MAX  = 8.0;
 
-            float sampleCount = gcu_TextureSize.z;
+            float sampleCount = gcu_FboTexSize.z;
 
-            vec2 texCoord = gcv_TexCoord.st;
+            vec2 texCoord = gcv_FboTexCoord.st;
             const float poff = 1.0;
             vec2 psize = 1.0 / texCoord; // pixel size
 
-            vec3 rgbNW = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-poff, -poff))).rgb;
-            vec3 rgbSW = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-poff,  poff))).rgb;
-            vec3 rgbSE = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( poff,  poff))).rgb;
-            vec3 rgbNE = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( poff, -poff))).rgb;
-            vec4 rgbM  = texture2D(gcu_TextureUnit, texCoord);
+            vec3 rgbNW = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-poff, -poff))).rgb;
+            vec3 rgbSW = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-poff,  poff))).rgb;
+            vec3 rgbSE = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( poff,  poff))).rgb;
+            vec3 rgbNE = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( poff, -poff))).rgb;
+            vec4 rgbM  = texture2D(gcu_FboTexUnit, texCoord);
 
             const vec3 luma = vec3(0.299, 0.587, 0.114);
             float lumaNW = dot(rgbNW, luma);
@@ -37,17 +37,17 @@
                        max( vec2(-FXAA_SPAN_MAX, -FXAA_SPAN_MAX),dir * rcpDirMin) ) * psize;
                        
 
-            vec3 rgbA = 0.5 * ( texture2D(gcu_TextureUnit, texCoord + dir * (1.0/3.0 - 0.5)).rgb + 
-                                texture2D(gcu_TextureUnit, texCoord + dir * (2.0/3.0 - 0.5)).rgb );
-            vec3 rgbB = rgbA * 0.5 + 0.25 * ( texture2D(gcu_TextureUnit, texCoord + (dir * - 0.5)).rgb + 
-                                              texture2D(gcu_TextureUnit, texCoord + (dir *   0.5)).rgb );
+            vec3 rgbA = 0.5 * ( texture2D(gcu_FboTexUnit, texCoord + dir * (1.0/3.0 - 0.5)).rgb + 
+                                texture2D(gcu_FboTexUnit, texCoord + dir * (2.0/3.0 - 0.5)).rgb );
+            vec3 rgbB = rgbA * 0.5 + 0.25 * ( texture2D(gcu_FboTexUnit, texCoord + (dir * - 0.5)).rgb + 
+                                              texture2D(gcu_FboTexUnit, texCoord + (dir *   0.5)).rgb );
             float lumaB = dot(rgbB, luma);
             if((lumaB < lumaMin) || (lumaB > lumaMax)) {
-                color = rgbA;
+                mgl_FragColor.rgb = rgbA;
             } else {
-                color = rgbB;
+                mgl_FragColor.rgb = rgbB;
             }
-            alpha = gcu_Alpha * rgbM.a; // mix(0.0, gcu_Alpha, rgbM.a); // t.a one of [ 0.0, 1.0 ]
+            mgl_FragColor.a = gcu_Alpha * rgbM.a; // mix(0.0, gcu_Alpha, rgbM.a); // t.a one of [ 0.0, 1.0 ]
         } else {
 
 #include curverenderer01-pass2-vbaa_poles_equalweight.glsl
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_bilin1.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_bilin1.glsl
index 08475317e..d634c1f9b 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_bilin1.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_bilin1.glsl
@@ -1,11 +1,11 @@
         // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels.
+        // Note: gcv_FboTexCoord is in center of sample pixels.
 
-        vec2 texCoord = gcv_TexCoord.st;
+        vec2 texCoord = gcv_FboTexCoord.st;
 
-        float sampleCount = gcu_TextureSize.z;
-        vec2 tsize = gcu_TextureSize.xy; // tex size
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
+        float sampleCount = gcu_FboTexSize.z;
+        vec2 tsize = gcu_FboTexSize.xy; // tex size
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
 
         // mix(x,y,a): x*(1-a) + y*a
         //
@@ -31,10 +31,10 @@
         vec4 t, p1, p2, p3, p4;
 
         // Layer-1: SampleCount 2 -> 4x
-        p1 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -0.5))); // NW
-        p2 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  0.5))); // SW
-        p3 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  0.5))); // SE
-        p4 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -0.5))); // NE
+        p1 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -0.5))); // NW
+        p2 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  0.5))); // SW
+        p3 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  0.5))); // SE
+        p4 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -0.5))); // NE
 
         p1  = mix( p1, p4, uv_ratio.x);
         p2  = mix( p2, p3, uv_ratio.x);
@@ -44,10 +44,10 @@
 
         if( sampleCount > 2.0 ) {
             // Layer-2: SampleCount 4 -> +4x = 8p
-            p1 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -1.5))); // NW
-            p2 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  1.5))); // SW
-            p3 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  1.5))); // SE
-            p4 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -1.5))); // NE
+            p1 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -1.5))); // NW
+            p2 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  1.5))); // SW
+            p3 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  1.5))); // SE
+            p4 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -1.5))); // NE
 
             p1  = mix( p1, p4, uv_ratio.x);
             p2  = mix( p2, p3, uv_ratio.x);
@@ -56,10 +56,10 @@
 
             if( sampleCount > 4.0 ) {
                 // Layer-3: SampleCount 6 -> +4 = 12p
-                p1 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -2.5))); // NW
-                p2 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  2.5))); // SW
-                p3 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  2.5))); // SE
-                p4 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -2.5))); // NE
+                p1 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -2.5))); // NW
+                p2 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  2.5))); // SW
+                p3 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  2.5))); // SE
+                p4 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -2.5))); // NE
 
                 p1  = mix( p1, p4, uv_ratio.x);
                 p2  = mix( p2, p3, uv_ratio.x);
@@ -68,10 +68,10 @@
 
                 if( sampleCount > 6.0 ) {
                     // Layer-4: SampleCount 8 -> +4 = 16p
-                    p1 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -3.5))); // NW
-                    p2 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  3.5))); // SW
-                    p3 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  3.5))); // SE
-                    p4 = texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -3.5))); // NE
+                    p1 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -3.5))); // NW
+                    p2 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  3.5))); // SW
+                    p3 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  3.5))); // SE
+                    p4 = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -3.5))); // NE
 
                     p1  = mix( p1, p4, uv_ratio.x);
                     p2  = mix( p2, p3, uv_ratio.x);
@@ -88,5 +88,4 @@
         }
         #endif
         
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
+        mgl_FragColor = t;
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_equalweight.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_equalweight.glsl
deleted file mode 100644
index a03294034..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_equalweight.glsl
+++ /dev/null
@@ -1,50 +0,0 @@
-
-        // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels.
-
-        float sampleCount = gcu_TextureSize.z;
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
-
-        // Just poles (NW, SW, ..)
-        float sample_weight = 1 / ( 2 * sampleCount );
-
-        vec2 texCoord = gcv_TexCoord.st;
-
-        vec4 t;
-
-        // SampleCount 2 -> 4x
-        t  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -0.5)))*sample_weight; // NW
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  0.5)))*sample_weight; // SW
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  0.5)))*sample_weight; // SE
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -0.5)))*sample_weight; // NE
-        if( sampleCount > 2.0 ) {
-            // SampleCount 4 -> +4 = 8p
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -1.5)))*sample_weight; // NW
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  1.5)))*sample_weight; // SW
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  1.5)))*sample_weight; // SE
-            t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -1.5)))*sample_weight; // NE
-
-            if( sampleCount > 4.0 ) {
-                // SampleCount 6 -> +4 = 12p
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -2.5)))*sample_weight; // NW
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  2.5)))*sample_weight; // SW
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  2.5)))*sample_weight; // SE
-                t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -2.5)))*sample_weight; // NE
-                if( sampleCount > 6.0 ) {
-                    // SampleCount 8 -> +4 = 16p
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -3.5)))*sample_weight; // NW
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  3.5)))*sample_weight; // SW
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  3.5)))*sample_weight; // SE
-                    t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -3.5)))*sample_weight; // NE
-                }
-            }
-        }
-        #if 0
-        if(t.w == 0.0){
-            discard; // discard freezes NV tegra2 compiler
-        }
-        #endif
-        
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_propweight1.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_propweight1.glsl
deleted file mode 100644
index d63dda7cc..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_poles_propweight1.glsl
+++ /dev/null
@@ -1,66 +0,0 @@
-        // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels.
-
-        float sampleCount = gcu_TextureSize.z;
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
-
-        // Just poles (NW, SW, ..)
-        float pixelCount = 2 * sampleCount;
-
-        // sampleCount [0, 1, 3, 5, 7] are undefined!
-        float layerCount = ( sampleCount / 2.0 );
-
-        // sum of all integer [layerCount .. 1] -> Gauss
-        float denom = ( layerCount / 2.0 ) * ( layerCount + 1.0 );
-
-        vec2 texCoord = gcv_TexCoord.st;
-
-        vec4 t;
-
-        // Layer-1: SampleCount 2 -> 4x
-        t  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5, -0.5))); // NW
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-0.5,  0.5))); // SW
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5,  0.5))); // SE
-        t += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 0.5, -0.5))); // NE
-
-        t *= (layerCount - 0.0) / ( denom * 4.0 ); // weight layer 1
-
-        if( sampleCount > 2.0 ) {
-            // Layer-2: SampleCount 4 -> +4x = 8p
-            vec4 tn = vec4(0);
-            tn  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5, -1.5))); // NW
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-1.5,  1.5))); // SW
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5,  1.5))); // SE
-            tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 1.5, -1.5))); // NE
-
-            t += tn * (layerCount - 1) / ( denom * 4.0 ); // weight layer 2
-
-            if( sampleCount > 4.0 ) {
-                // Layer-3: SampleCount 6 -> +4 = 12p
-                tn  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5, -2.5))); // NW
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-2.5,  2.5))); // SW
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5,  2.5))); // SE
-                tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 2.5, -2.5))); // NE
-
-                t += tn * (layerCount - 2) / ( denom * 4.0 ); // weight layer 3
-
-                if( sampleCount > 6.0 ) {
-                    // Layer-4: SampleCount 8 -> +4 = 16p
-                    tn  = texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5, -3.5))); // NW
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2(-3.5,  3.5))); // SW
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5,  3.5))); // SE
-                    tn += texture2D(gcu_TextureUnit, texCoord + psize*(vec2( 3.5, -3.5))); // NE
-
-                    t += tn * (layerCount - 3) / ( denom * 4.0 ); // weight layer 4
-                }
-            }
-        }
-
-        #if 0
-        if(t.w == 0.0){
-            discard; // discard freezes NV tegra2 compiler
-        }
-        #endif
-        
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_polesequal.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_polesequal.glsl
new file mode 100644
index 000000000..0e8b6f161
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_polesequal.glsl
@@ -0,0 +1,49 @@
+
+        // Pass-2: AA on Texture
+        // Note: gcv_FboTexCoord is in center of sample pixels.
+
+        float sampleCount = gcu_FboTexSize.z;
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
+
+        // Just poles (NW, SW, ..)
+        float sample_weight = 1 / ( 2 * sampleCount );
+
+        vec2 texCoord = gcv_FboTexCoord.st;
+
+        vec4 t;
+
+        // SampleCount 2 -> 4x
+        t  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -0.5)))*sample_weight; // NW
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  0.5)))*sample_weight; // SW
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  0.5)))*sample_weight; // SE
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -0.5)))*sample_weight; // NE
+        if( sampleCount > 2.0 ) {
+            // SampleCount 4 -> +4 = 8p
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -1.5)))*sample_weight; // NW
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  1.5)))*sample_weight; // SW
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  1.5)))*sample_weight; // SE
+            t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -1.5)))*sample_weight; // NE
+
+            if( sampleCount > 4.0 ) {
+                // SampleCount 6 -> +4 = 12p
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -2.5)))*sample_weight; // NW
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  2.5)))*sample_weight; // SW
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  2.5)))*sample_weight; // SE
+                t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -2.5)))*sample_weight; // NE
+                if( sampleCount > 6.0 ) {
+                    // SampleCount 8 -> +4 = 16p
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -3.5)))*sample_weight; // NW
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  3.5)))*sample_weight; // SW
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  3.5)))*sample_weight; // SE
+                    t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -3.5)))*sample_weight; // NE
+                }
+            }
+        }
+        #if 0
+        if(t.w == 0.0){
+            discard; // discard freezes NV tegra2 compiler
+        }
+        #endif
+        
+        mgl_FragColor = t;
+
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_polesprop01.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_polesprop01.glsl
new file mode 100644
index 000000000..6c263b9bd
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_polesprop01.glsl
@@ -0,0 +1,65 @@
+        // Pass-2: AA on Texture
+        // Note: gcv_FboTexCoord is in center of sample pixels.
+
+        float sampleCount = gcu_FboTexSize.z;
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
+
+        // Just poles (NW, SW, ..)
+        float pixelCount = 2 * sampleCount;
+
+        // sampleCount [0, 1, 3, 5, 7] are undefined!
+        float layerCount = ( sampleCount / 2.0 );
+
+        // sum of all integer [layerCount .. 1] -> Gauss
+        float denom = ( layerCount / 2.0 ) * ( layerCount + 1.0 );
+
+        vec2 texCoord = gcv_FboTexCoord.st;
+
+        vec4 t;
+
+        // Layer-1: SampleCount 2 -> 4x
+        t  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5, -0.5))); // NW
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-0.5,  0.5))); // SW
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5,  0.5))); // SE
+        t += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 0.5, -0.5))); // NE
+
+        t *= (layerCount - 0.0) / ( denom * 4.0 ); // weight layer 1
+
+        if( sampleCount > 2.0 ) {
+            // Layer-2: SampleCount 4 -> +4x = 8p
+            vec4 tn = vec4(0);
+            tn  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5, -1.5))); // NW
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-1.5,  1.5))); // SW
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5,  1.5))); // SE
+            tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 1.5, -1.5))); // NE
+
+            t += tn * (layerCount - 1) / ( denom * 4.0 ); // weight layer 2
+
+            if( sampleCount > 4.0 ) {
+                // Layer-3: SampleCount 6 -> +4 = 12p
+                tn  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5, -2.5))); // NW
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-2.5,  2.5))); // SW
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5,  2.5))); // SE
+                tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 2.5, -2.5))); // NE
+
+                t += tn * (layerCount - 2) / ( denom * 4.0 ); // weight layer 3
+
+                if( sampleCount > 6.0 ) {
+                    // Layer-4: SampleCount 8 -> +4 = 16p
+                    tn  = texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5, -3.5))); // NW
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2(-3.5,  3.5))); // SW
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5,  3.5))); // SE
+                    tn += texture2D(gcu_FboTexUnit, texCoord + psize*(vec2( 3.5, -3.5))); // NE
+
+                    t += tn * (layerCount - 3) / ( denom * 4.0 ); // weight layer 4
+                }
+            }
+        }
+
+        #if 0
+        if(t.w == 0.0){
+            discard; // discard freezes NV tegra2 compiler
+        }
+        #endif
+        
+        mgl_FragColor = t;
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_quincunx.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_quincunx.glsl
index 545f1cc82..07a9adf46 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_quincunx.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_quincunx.glsl
@@ -1,22 +1,22 @@
 
         // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels, origin is bottom left!
+        // Note: gcv_FboTexCoord is in center of sample pixels, origin is bottom left!
 
-        float sampleCount = gcu_TextureSize.z;
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
+        float sampleCount = gcu_FboTexSize.z;
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
 
         // Just poles (NW, SW, ..)
         float edgeH = sampleCount / 2.0;
 
-        vec2 texCoord = gcv_TexCoord.st;
+        vec2 texCoord = gcv_FboTexCoord.st;
 
         vec4 t;
 
-        t  = GetSample(gcu_TextureUnit, texCoord, psize,    0.0,    0.0, 0.0, 0.0)*0.5;   // w1 - center
-        t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeH, -edgeH, 0.0, 0.0)*0.125; // w2 - sharing
-        t += GetSample(gcu_TextureUnit, texCoord, psize, -edgeH,  edgeH, 0.0, 0.0)*0.125; // w3 - edges
-        t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeH, -edgeH, 0.0, 0.0)*0.125; // w4 - w/ all pixels
-        t += GetSample(gcu_TextureUnit, texCoord, psize,  edgeH,  edgeH, 0.0, 0.0)*0.125; // w5
+        t  = GetSample(gcu_FboTexUnit, texCoord, psize,    0.0,    0.0, 0.0, 0.0)*0.5;   // w1 - center
+        t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeH, -edgeH, 0.0, 0.0)*0.125; // w2 - sharing
+        t += GetSample(gcu_FboTexUnit, texCoord, psize, -edgeH,  edgeH, 0.0, 0.0)*0.125; // w3 - edges
+        t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeH, -edgeH, 0.0, 0.0)*0.125; // w4 - w/ all pixels
+        t += GetSample(gcu_FboTexUnit, texCoord, psize,  edgeH,  edgeH, 0.0, 0.0)*0.125; // w5
 
         #if 0
         if(t.w == 0.0){
@@ -24,6 +24,5 @@
         }
         #endif
         
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
+        mgl_FragColor = t;
 
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_rgss.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_rgss.glsl
index 804ab6013..27a5684a6 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_rgss.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-vbaa_rgss.glsl
@@ -1,19 +1,19 @@
 
         // Pass-2: AA on Texture
-        // Note: gcv_TexCoord is in center of sample pixels, origin is bottom left!
+        // Note: gcv_FboTexCoord is in center of sample pixels, origin is bottom left!
 
-        float sampleCount = gcu_TextureSize.z;
-        vec2 psize = 1.0 / gcu_TextureSize.xy; // pixel size
+        float sampleCount = gcu_FboTexSize.z;
+        vec2 psize = 1.0 / gcu_FboTexSize.xy; // pixel size
 
-        vec2 texCoord = gcv_TexCoord.st;
+        vec2 texCoord = gcv_FboTexCoord.st;
         float edge1Q = ( sampleCount / 2.0 ) - 1.0;
 
         vec4 t;
                                                                                            // SWIPE LEFT -> RIGHT
-        t  = GetSample(gcu_TextureUnit, texCoord, psize, -edge1Q,     0.0, -0.5,  0.5)*0.25; // upper-left  [p1]
-        t += GetSample(gcu_TextureUnit, texCoord, psize,     0.0, -edge1Q, -0.5, -0.5)*0.25; // lower-left  [p3]
-        t += GetSample(gcu_TextureUnit, texCoord, psize,     0.0,  edge1Q,  0.5,  0.5)*0.25; // upper-right [p2]
-        t += GetSample(gcu_TextureUnit, texCoord, psize,  edge1Q,     0.0,  0.5, -0.5)*0.25; // lower-right [p4]
+        t  = GetSample(gcu_FboTexUnit, texCoord, psize, -edge1Q,     0.0, -0.5,  0.5)*0.25; // upper-left  [p1]
+        t += GetSample(gcu_FboTexUnit, texCoord, psize,     0.0, -edge1Q, -0.5, -0.5)*0.25; // lower-left  [p3]
+        t += GetSample(gcu_FboTexUnit, texCoord, psize,     0.0,  edge1Q,  0.5,  0.5)*0.25; // upper-right [p2]
+        t += GetSample(gcu_FboTexUnit, texCoord, psize,  edge1Q,     0.0,  0.5, -0.5)*0.25; // lower-right [p4]
 
         #if 0
         if(t.w == 0.0){
@@ -21,6 +21,5 @@
         }
         #endif
         
-        color = t.rgb;
-        alpha = gcu_Alpha * t.a;
+        mgl_FragColor = t;
 
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2.vp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2.vp
new file mode 100644
index 000000000..64857c9ce
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2.vp
@@ -0,0 +1,17 @@
+//Copyright 2010 JogAmp Community. All rights reserved.
+
+#if __VERSION__ >= 130
+  #define attribute in
+  #define varying out
+#endif
+
+#include uniforms.glsl
+#include attributes.glsl
+#include varyings.glsl
+
+void main(void)
+{
+    // gl_Position = gcu_PMVMatrix01[0] * gcu_PMVMatrix01[1] * vec4(gca_FboVertices, 1);
+    gl_Position = gcu_PMVMatrix01[0] * gcu_PMVMatrix01[1] * gca_FboVertices;
+    gcv_FboTexCoord = gca_FboTexCoords;
+}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-segment-head.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-segment-head.fp
new file mode 100644
index 000000000..74a1dea4e
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-segment-head.fp
@@ -0,0 +1,22 @@
+//Copyright 2010 JogAmp Community. All rights reserved.
+
+//
+// 2-pass shader w/o weight
+//
+
+#if __VERSION__ >= 130
+  #define varying in
+  out vec4 mgl_FragColor;
+  #define texture2D texture
+#else
+  #define mgl_FragColor gl_FragColor
+#endif
+
+#include uniforms.glsl
+#include varyings.glsl
+
+#define GetSample(texUnit, texCoord, psize, cx, cy, offX, offY) texture2D(texUnit, texCoord + psize *  vec2(cx+offX, cy+offY))
+
+void main (void)
+{
+
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-single.vp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-single.vp
new file mode 100644
index 000000000..7598c23f8
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-single.vp
@@ -0,0 +1,30 @@
+//Copyright 2010 JogAmp Community. All rights reserved.
+
+#if __VERSION__ >= 130
+  #define attribute in
+  #define varying out
+#endif
+
+#include uniforms.glsl
+#include attributes.glsl
+#include varyings.glsl
+
+void main(void)
+{
+    // gl_Position = gcu_PMVMatrix01[0] * gcu_PMVMatrix01[1] * vec4(gca_Vertices, 1);
+    gl_Position = gcu_PMVMatrix01[0] * gcu_PMVMatrix01[1] * gca_Vertices;
+#if 1
+    gcv_CurveParam = gca_CurveParams;
+#else
+    if( gcv_CurveParams.x <= -10.0 ) {
+        // vec4 tc = gcu_PMVMatrix01[0] * gcu_PMVMatrix01[1] * vec4(gca_CurveParams.xy, gca_Vertices.z, 1);
+        // gcv_CurveParams = vec3(tc.xy, gca_CurveParams.z);
+        gcv_CurveParam = gca_CurveParams;
+    } else {
+        gcv_CurveParam = gca_CurveParams;
+    }
+#endif
+#ifdef USE_COLOR_CHANNEL
+    gcv_Color = gca_Colors;
+#endif
+}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.vp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.vp
deleted file mode 100644
index 5ab82ad40..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.vp
+++ /dev/null
@@ -1,23 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#if __VERSION__ >= 130
-  #define attribute in
-  #define varying out
-#endif
-
-#include uniforms.glsl
-#include attributes.glsl
-#include varyings.glsl
-
-void main(void)
-{
-    // gl_Position = gcu_PMVMatrix[0] * gcu_PMVMatrix[1] * vec4(gca_Vertices, 1);
-    gl_Position = gcu_PMVMatrix[0] * gcu_PMVMatrix[1] * gca_Vertices;
-    if( gcv_TexCoord.x <= -10.0 ) {
-        // vec4 tc = gcu_PMVMatrix[0] * gcu_PMVMatrix[1] * vec4(gca_TexCoords.xy, gca_Vertices.z, 1);
-        // gcv_TexCoord = vec3(tc.xy, gca_TexCoords.z);
-        gcv_TexCoord = gca_TexCoords;
-    } else {
-        gcv_TexCoord = gca_TexCoords;
-    }
-}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/uniforms.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/uniforms.glsl
index 92e78d5de..848c26819 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/uniforms.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/uniforms.glsl
@@ -2,14 +2,17 @@
 #ifndef uniforms_glsl
 #define uniforms_glsl
 
-uniform mat4    gcu_PMVMatrix[3]; // P, Mv, and Mvi
-uniform vec3    gcu_ColorStatic;
-uniform float   gcu_Alpha;
+uniform mat4    gcu_PMVMatrix01[3]; // P, Mv, and Mvi
+uniform vec4    gcu_ColorStatic;
 uniform float   gcu_Weight;
-uniform sampler2D  gcu_TextureUnit;
 
-/** 3rd component: 0: pass-1, >0: pass-2, sampleCount */
-uniform vec3   gcu_TextureSize;
+uniform mat4    gcu_PMVMatrix02[3]; // P, Mv, and Mvi
+uniform sampler2D  gcu_FboTexUnit;
+
+/** 
+ * .x .y : texture-, fbo- or screen-size
+ */
+uniform vec2   gcu_FboTexSize;
 
 // const   int     MAX_TEXTURE_UNITS = 8; // <= gl_MaxTextureImageUnits 
 // const   int     MAX_LIGHTS = 8; 
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
index 17f118bc8..2054c9c21 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
@@ -2,8 +2,13 @@
 #ifndef varyings_glsl
 #define varyings_glsl
 
-//varying vec4    gcv_FrontColor;
-varying vec3     gcv_TexCoord;
+varying vec3    gcv_CurveParam;
+
+varying vec2    gcv_FboTexCoord;
+
+#ifdef USE_COLOR_CHANNEL
+    varying vec4    gcv_Color;
+#endif
 
 #endif // varyings_glsl