Merge turtle2d in it's subdifrectory for later relocation

6 files changed, 1076 insertions, 0 deletions

diff --git a/turtle2d/src/jogamp/graph/curve/opengl/RegionRendererImpl01.java b/turtle2d/src/jogamp/graph/curve/opengl/RegionRendererImpl01.java
new file mode 100755
index 000000000..c1f293fff
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/RegionRendererImpl01.java
@@ -0,0 +1,206 @@
+/**

+ * 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.GL2ES2;

+import javax.media.opengl.GLException;

+import javax.media.opengl.GLUniformData;

+import javax.media.opengl.fixedfunc.GLMatrixFunc;

+

+import com.jogamp.graph.curve.OutlineShape;

+import com.jogamp.graph.curve.Region;

+import com.jogamp.graph.curve.opengl.RegionRenderer;

+import com.jogamp.graph.geom.Vertex;

+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 {

+	/**Sharpness is equivalent to the value of t value of texture coord

+	 * on the off-curve vertex. The high value of sharpness will 

+	 * result in high curvature.

+	 */

+    private GLUniformData mgl_sharpness = new GLUniformData("p1y", 0.5f);

+    GLUniformData mgl_alpha = new GLUniformData("g_alpha", 1.0f);

+    private GLUniformData mgl_color = new GLUniformData("g_color", 3, FloatBuffer.allocate(3));

+    private GLUniformData mgl_strength = new GLUniformData("a_strength", 3.0f);

+    

+    public RegionRendererImpl01(Vertex.Factory<? extends Vertex> factory, int type) {

+        super(factory, type);

+    }

+    

+    protected boolean initImpl(GL2ES2 gl) {

+        boolean VBOsupported = gl.isFunctionAvailable("glGenBuffers") &&

+            gl.isFunctionAvailable("glBindBuffer") &&

+            gl.isFunctionAvailable("glBufferData") &&

+            gl.isFunctionAvailable("glDrawElements") &&

+            gl.isFunctionAvailable("glVertexAttribPointer") &&

+            gl.isFunctionAvailable("glDeleteBuffers");

+        

+        if(DEBUG) {

+            System.err.println("RegionRenderer: VBO Supported = " + VBOsupported);

+        }

+        

+        if(!VBOsupported){

+            return false;

+        }

+        

+        gl.glEnable(GL2ES2.GL_BLEND);

+        gl.glBlendFunc(GL2ES2.GL_SRC_ALPHA, GL2ES2.GL_ONE_MINUS_SRC_ALPHA);

+        

+        ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, RegionRendererImpl01.class,

+                "shader", "shader/bin", "curverenderer01");

+        ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, RegionRendererImpl01.class,

+                "shader", "shader/bin", "curverenderer01");

+    

+        ShaderProgram sp = new ShaderProgram();

+        sp.add(rsVp);

+        sp.add(rsFp);

+    

+        if(!sp.link(gl, System.err)) {

+            throw new GLException("RegionRenderer: Couldn't link program: "+sp);

+        }

+    

+        st = new ShaderState();

+        st.attachShaderProgram(gl, sp);

+        gl.glBindAttribLocation(sp.id(), 0, "v_position");

+        gl.glBindAttribLocation(sp.id(), 1, "texCoord");

+        

+        st.glUseProgram(gl, true);

+    

+        pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);

+        pmvMatrix.glLoadIdentity();

+        pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);

+        pmvMatrix.glLoadIdentity();

+        

+        pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);

+        pmvMatrix.glLoadIdentity();

+        resetModelview(null);

+    

+        mgl_PMVMatrix = new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf());                  

+        if(!st.glUniform(gl, mgl_PMVMatrix)) {

+            if(DEBUG){

+                System.err.println("Error setting PMVMatrix in shader: "+st);

+            }

+            return false;

+        }

+        

+        if(!st.glUniform(gl, mgl_sharpness)) {

+            if(DEBUG){

+                System.err.println("Error setting sharpness in shader: "+st);

+            }

+            return false;

+        }

+                

+        if(!st.glUniform(gl, mgl_alpha)) {

+            if(DEBUG){

+                System.err.println("Error setting global alpha in shader: "+st);

+            }

+            return false;

+        }       

+        

+        if(!st.glUniform(gl, mgl_color)) {

+            if(DEBUG){

+                System.err.println("Error setting global color in shader: "+st);

+            }

+            return false;

+        }       

+        

+        if(!st.glUniform(gl, mgl_strength)) {

+            System.err.println("Error setting antialias strength in shader: "+st);

+        }

+        

+        if(DEBUG) {

+            System.err.println("RegionRendererImpl01 initialized: " + Thread.currentThread()+" "+st);

+        }

+        return true;

+    }

+

+    @Override

+    protected void disposeImpl(GL2ES2 gl) {

+    }

+    

+    

+    @Override

+    public float getAlpha() {

+        return mgl_alpha.floatValue();

+    }

+

+    @Override

+    public void setAlpha(GL2ES2 gl, float alpha_t) {

+        mgl_alpha.setData(alpha_t);

+        if(null != gl && st.inUse()) {

+            st.glUniform(gl, mgl_alpha);

+        }

+    }

+    

+    @Override

+    public void setColor(GL2ES2 gl, float r, float g, float b){

+        FloatBuffer fb = (FloatBuffer) mgl_color.getBuffer();

+        fb.put(0, r);

+        fb.put(1, r);

+        fb.put(2, r);

+        if(null != gl && st.inUse()) {

+            st.glUniform(gl, mgl_color);

+        }

+    }

+    

+	

+	@Override

+    public void renderOutlineShape(GL2ES2 gl, OutlineShape outlineShape, float[] position, int texSize) {

+		if(!isInitialized()){

+			throw new GLException("RegionRendererImpl01: not initialized!");

+		}

+		int hashCode = getHashCode(outlineShape);

+		Region region = regions.get(hashCode);

+		

+		if(null == region) {

+			region = createRegion(gl, outlineShape, mgl_sharpness.floatValue());

+			regions.put(hashCode, region);

+		}		

+		region.render(pmvMatrix, vp_width, vp_height, texSize);

+	}

+	

+	@Override

+    public void renderOutlineShapes(GL2ES2 gl, OutlineShape[] outlineShapes, float[] position, int texSize) {

+        if(!isInitialized()){

+            throw new GLException("RegionRendererImpl01: not initialized!");

+        }

+		

+		int hashCode = getHashCode(outlineShapes);

+		Region region = regions.get(hashCode);

+		

+		if(null == region) {

+            region = createRegion(gl, outlineShapes, mgl_sharpness.floatValue());

+			regions.put(hashCode, region);

+		}		

+        region.render(pmvMatrix, vp_width, vp_height, texSize);

+	}	

+}

diff --git a/turtle2d/src/jogamp/graph/curve/opengl/TextRendererImpl01.java b/turtle2d/src/jogamp/graph/curve/opengl/TextRendererImpl01.java
new file mode 100644
index 000000000..cebe7a19e
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/TextRendererImpl01.java
@@ -0,0 +1,188 @@
+/**
+ * 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.GL2ES2;
+import javax.media.opengl.GLException;
+import javax.media.opengl.GLUniformData;
+import javax.media.opengl.fixedfunc.GLMatrixFunc;
+
+import jogamp.graph.curve.text.GlyphString;
+
+import com.jogamp.graph.curve.opengl.TextRenderer;
+import com.jogamp.graph.font.Font;
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.opengl.util.glsl.ShaderCode;
+import com.jogamp.opengl.util.glsl.ShaderProgram;
+
+public class TextRendererImpl01 extends TextRenderer {    
+	/**Sharpness is equivalent to the value of t value of texture coord
+	 * on the off-curve vertex. The high value of sharpness will 
+	 * result in high curvature.
+	 */
+    private GLUniformData mgl_sharpness = new GLUniformData("p1y", 0.5f);
+    GLUniformData mgl_alpha = new GLUniformData("g_alpha", 1.0f);
+    private GLUniformData mgl_color = new GLUniformData("g_color", 3, FloatBuffer.allocate(3));
+    private GLUniformData mgl_strength = new GLUniformData("a_strength", 1.8f);
+    	
+	public TextRendererImpl01(Vertex.Factory<? extends Vertex> factory, int type) {
+	    super(factory, type);
+	}
+
+	@Override
+    protected boolean initImpl(GL2ES2 gl){
+		boolean VBOsupported = gl.isFunctionAvailable("glGenBuffers") &&
+			gl.isFunctionAvailable("glBindBuffer") &&
+			gl.isFunctionAvailable("glBufferData") &&
+			gl.isFunctionAvailable("glDrawElements") &&
+			gl.isFunctionAvailable("glVertexAttribPointer") &&
+			gl.isFunctionAvailable("glDeleteBuffers");
+		
+		if(DEBUG) {
+			System.err.println("TextRendererImpl01: VBO Supported = " + VBOsupported);
+		}
+		
+		if(!VBOsupported){
+			return false;
+		}
+		
+		gl.glEnable(GL2ES2.GL_BLEND);
+		gl.glBlendFunc(GL2ES2.GL_SRC_ALPHA, GL2ES2.GL_ONE_MINUS_SRC_ALPHA);
+		
+        ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, TextRendererImpl01.class,
+                "shader", "shader/bin", "curverenderer01");
+        ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, TextRendererImpl01.class,
+                "shader", "shader/bin", "curverenderer01");
+
+        ShaderProgram sp = new ShaderProgram();
+        sp.add(rsVp);
+        sp.add(rsFp);
+
+        if(!sp.link(gl, System.err)) {
+            throw new GLException("TextRendererImpl01: Couldn't link program: "+sp);
+        }
+
+        st.attachShaderProgram(gl, sp);
+        gl.glBindAttribLocation(sp.id(), 0, "v_position");
+        gl.glBindAttribLocation(sp.id(), 1, "texCoord");
+		
+		st.glUseProgram(gl, true);
+
+		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+		pmvMatrix.glLoadIdentity();
+		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
+		pmvMatrix.glLoadIdentity();
+		
+		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+		pmvMatrix.glLoadIdentity();
+		resetModelview(null);
+		
+		mgl_PMVMatrix = new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf());		    		
+		if(!st.glUniform(gl, mgl_PMVMatrix)) {
+			if(DEBUG){
+				System.err.println("Error setting PMVMatrix in shader: "+st);
+			}
+			return false;
+		}
+		
+		if(!st.glUniform(gl, mgl_sharpness)) {
+			if(DEBUG){
+				System.err.println("Error setting sharpness in shader: "+st);
+			}
+			return false;
+		}
+				
+		if(!st.glUniform(gl, mgl_alpha)) {
+			if(DEBUG){
+				System.err.println("Error setting global alpha in shader: "+st);
+			}
+			return false;
+		}		
+		
+		if(!st.glUniform(gl, mgl_color)) {
+			if(DEBUG){
+				System.err.println("Error setting global color in shader: "+st);
+			}
+			return false;
+		}		
+		
+		if(!st.glUniform(gl, mgl_strength)) {
+			System.err.println("Error setting antialias strength in shader: "+st);
+		}
+		
+		if(DEBUG) {
+			System.err.println("TextRendererImpl01 initialized: " + Thread.currentThread()+" "+st);
+		}
+		return true;
+	}
+	
+	@Override
+    protected void disposeImpl(GL2ES2 gl) {
+	}
+	
+    @Override
+    public float getAlpha() {
+        return mgl_alpha.floatValue();
+    }
+
+    @Override
+    public void setAlpha(GL2ES2 gl, float alpha_t) {
+        mgl_alpha.setData(alpha_t);
+        if(null != gl && st.inUse()) {
+            st.glUniform(gl, mgl_alpha);
+        }
+    }
+	
+	@Override
+    public void setColor(GL2ES2 gl, float r, float g, float b){
+	    FloatBuffer fb = (FloatBuffer) mgl_color.getBuffer();
+	    fb.put(0, r);
+	    fb.put(1, r);
+	    fb.put(2, r);
+	    if(null != gl && st.inUse()) {
+	        st.glUniform(gl, mgl_color);
+	    }
+	}
+	
+	@Override
+    public void renderString3D(GL2ES2 gl, Font font, String str, float[] position, int fontSize, int texSize) {
+		if(!isInitialized()){
+			throw new GLException("TextRendererImpl01: not initialized!");
+		}
+		GlyphString glyphString = getCachedGlyphString(font, str, fontSize);
+		if(null == glyphString) {
+			glyphString = createString(gl, font, fontSize, str, mgl_sharpness.floatValue());
+			addCachedGlyphString(font, str, fontSize, glyphString);
+		}
+		
+		glyphString.renderString3D(pmvMatrix, vp_width, vp_height, texSize);
+	}
+	
+}
diff --git a/turtle2d/src/jogamp/graph/curve/opengl/VBORegion2PES2.java b/turtle2d/src/jogamp/graph/curve/opengl/VBORegion2PES2.java
new file mode 100644
index 000000000..c7c370f6d
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/VBORegion2PES2.java
@@ -0,0 +1,385 @@
+/**
+ * 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 java.nio.IntBuffer;
+import java.nio.ShortBuffer;
+import java.util.ArrayList;
+
+import javax.media.opengl.GL2ES2;
+// FIXME: Subsume GL2GL3.GL_DRAW_FRAMEBUFFER -> GL2ES2.GL_DRAW_FRAMEBUFFER ! 
+import javax.media.opengl.GL2GL3;
+import javax.media.opengl.GLContext;
+import javax.media.opengl.GLUniformData;
+import javax.media.opengl.fixedfunc.GLMatrixFunc;
+
+import com.jogamp.common.nio.Buffers;
+
+import com.jogamp.graph.geom.AABBox;
+import com.jogamp.graph.geom.Triangle;
+import com.jogamp.graph.geom.Vertex;
+
+import com.jogamp.graph.curve.Region;
+import com.jogamp.opengl.util.PMVMatrix;
+import com.jogamp.opengl.util.glsl.ShaderState;
+
+public class VBORegion2PES2  implements Region{
+	private int numVertices = 0;
+	private IntBuffer vboIds;
+	
+	private IntBuffer t_vboIds;
+	
+	private ArrayList<Triangle> triangles = new ArrayList<Triangle>();
+	private ArrayList<Vertex> vertices = new ArrayList<Vertex>();
+	private GLContext context;
+	
+	private int numBuffers = 3;
+	
+	private boolean flipped = false;
+	
+	private boolean dirty = false;
+	
+	private AABBox box = null;
+	private int[] texture = { 0 } ;
+	private int[] fbo = { 0 } ;
+	private int[] rbo_depth = { 0 } ;
+	private boolean texInitialized = false;
+
+	private int tex_width_c = 0;
+	private int tex_height_c = 0;
+	
+	private ShaderState st;
+	
+	public VBORegion2PES2(GLContext context, ShaderState st){
+		this.context =context;
+		this.st = st;
+	}
+	
+	public void update(){
+		box = new AABBox();
+		
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		ShortBuffer indicies = Buffers.newDirectShortBuffer(triangles.size() * 3);
+		
+		for(Triangle t:triangles){
+			if(t.getVertices()[0].getId() == Integer.MAX_VALUE){
+				t.getVertices()[0].setId(numVertices++);
+				t.getVertices()[1].setId(numVertices++);
+				t.getVertices()[2].setId(numVertices++);
+				
+				vertices.add(t.getVertices()[0]);
+				vertices.add(t.getVertices()[1]);
+				vertices.add(t.getVertices()[2]);
+				
+				indicies.put((short) t.getVertices()[0].getId());
+				indicies.put((short) t.getVertices()[1].getId());
+				indicies.put((short) t.getVertices()[2].getId());
+			}
+			else{
+				Vertex v1 = t.getVertices()[0];
+				Vertex v2 = t.getVertices()[1];
+				Vertex v3 = t.getVertices()[2];
+				
+				indicies.put((short) v1.getId());
+				indicies.put((short) v2.getId());
+				indicies.put((short) v3.getId());
+			}
+		}
+		indicies.rewind();
+		
+		FloatBuffer verticesBuffer = Buffers.newDirectFloatBuffer(vertices.size() * 3);
+		for(Vertex v:vertices){
+			verticesBuffer.put(v.getX());
+			if(flipped){
+				verticesBuffer.put(-1*v.getY());
+			}
+			else{
+				verticesBuffer.put(v.getY());
+			}
+			verticesBuffer.put(v.getZ());
+			if(flipped){
+				box.resize(v.getX(), -1*v.getY(), v.getZ());
+			}
+			else{
+				box.resize(v.getX(), v.getY(), v.getZ());
+			}
+		}
+		verticesBuffer.rewind();
+		
+		FloatBuffer texCoordBuffer = Buffers.newDirectFloatBuffer(vertices.size() * 2);
+		for(Vertex v:vertices){
+			float[] tex = v.getTexCoord();
+			texCoordBuffer.put(tex[0]);
+			texCoordBuffer.put(tex[1]);
+		}
+		texCoordBuffer.rewind();
+
+		vboIds = IntBuffer.allocate(numBuffers);
+		gl.glGenBuffers(numBuffers, vboIds);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(0)); // vertices
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, numVertices * 3 * Buffers.SIZEOF_FLOAT, verticesBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(1)); //texture
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, numVertices * 2 * Buffers.SIZEOF_FLOAT, texCoordBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, vboIds.get(2)); //triangles
+		gl.glBufferData(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, triangles.size()* 3 * Buffers.SIZEOF_SHORT, indicies, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, 0);
+		
+		dirty = false;
+	}
+	
+	public void render(PMVMatrix matrix, int vp_width, int vp_height, int width){
+		if(null == matrix || vp_width <=0 || vp_height <= 0 || width <= 0){
+			renderRegion();
+		}
+		else {
+			if(width != tex_width_c){
+				texInitialized = false;
+				tex_width_c = width;
+			}
+			if(!texInitialized){
+				initFBOTexture(matrix,vp_width, vp_height);
+				texInitialized = true;
+			}
+//			System.out.println("Scale: " + matrix.glGetMatrixf().get(1+4*3) +" " + matrix.glGetMatrixf().get(2+4*3));
+			renderTexture(matrix, vp_width, vp_height);
+		}
+	}
+	
+	private void renderTexture(PMVMatrix matrix, int width, int hight){
+		GL2ES2 gl = context.getGL().getGL2ES2();
+	    gl.glViewport(0, 0, width, hight);
+	    if(!st.glUniform(gl, new GLUniformData("mgl_PMVMatrix", 4, 4, matrix.glGetPMvMatrixf()))){
+	    	System.out.println("Cnt set tex based mat");
+	    }
+	    gl.glEnable(GL2ES2.GL_TEXTURE_2D);
+	    gl.glActiveTexture(GL2ES2.GL_TEXTURE0);
+	    gl.glBindTexture(GL2ES2.GL_TEXTURE_2D, texture[0]);
+	    
+	    st.glUniform(gl, new GLUniformData("texture", texture[0]));
+	    int loc = gl.glGetUniformLocation(st.shaderProgram().id(), "texture");
+	    gl.glUniform1i(loc, 0);
+	    
+	    
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, t_vboIds.get(0));
+		gl.glEnableVertexAttribArray(VERTEX_ATTR_IDX);
+		gl.glVertexAttribPointer(VERTEX_ATTR_IDX, 3, GL2ES2.GL_FLOAT, false, 3 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, t_vboIds.get(1));
+		gl.glEnableVertexAttribArray(TEXCOORD_ATTR_IDX);
+		gl.glVertexAttribPointer(TEXCOORD_ATTR_IDX, 2, GL2ES2.GL_FLOAT, false, 2 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, t_vboIds.get(2));
+		gl.glDrawElements(GL2ES2.GL_TRIANGLES, 2 * 3, GL2ES2.GL_UNSIGNED_SHORT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+	}
+	
+	private void setupBoundingBuffers(){
+	    GL2ES2 gl = context.getGL().getGL2ES2();
+		
+		ShortBuffer indicies = Buffers.newDirectShortBuffer(6);
+		indicies.put((short) 0); indicies.put((short) 1); indicies.put((short) 3);
+		indicies.put((short) 1); indicies.put((short) 2); indicies.put((short) 3);
+		indicies.rewind();
+		
+		FloatBuffer verticesBuffer = Buffers.newDirectFloatBuffer(4 * 3);
+		FloatBuffer texCoordBuffer = Buffers.newDirectFloatBuffer(4 * 2);
+		
+		verticesBuffer.put(box.getLow()[0]);
+		verticesBuffer.put(box.getLow()[1]);
+		verticesBuffer.put(box.getLow()[2]);
+		texCoordBuffer.put(5);
+		texCoordBuffer.put(5);
+		
+		verticesBuffer.put(box.getLow()[0]);
+		verticesBuffer.put(box.getHigh()[1]);
+		verticesBuffer.put(box.getLow()[2]);
+		
+		texCoordBuffer.put(5);
+		texCoordBuffer.put(6);
+		
+		verticesBuffer.put(box.getHigh()[0]);
+		verticesBuffer.put(box.getHigh()[1]);
+		verticesBuffer.put(box.getLow()[2]);
+		
+		texCoordBuffer.put(6);
+		texCoordBuffer.put(6);
+		
+		verticesBuffer.put(box.getHigh()[0]);
+		verticesBuffer.put(box.getLow()[1]);
+		verticesBuffer.put(box.getLow()[2]);
+		
+		texCoordBuffer.put(6);
+		texCoordBuffer.put(5);
+			
+		verticesBuffer.rewind();
+		texCoordBuffer.rewind();
+
+		t_vboIds = IntBuffer.allocate(3);
+		gl.glGenBuffers(numBuffers, t_vboIds);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, t_vboIds.get(0)); // vertices
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, 4 * 3 * Buffers.SIZEOF_FLOAT, verticesBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, t_vboIds.get(1)); //texture
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, 4 * 2 * Buffers.SIZEOF_FLOAT, texCoordBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, t_vboIds.get(2)); //triangles
+		gl.glBufferData(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, 4 * 3 * Buffers.SIZEOF_SHORT, indicies, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, 0);
+	}
+	
+	private void initFBOTexture(PMVMatrix m, int width, int hight){
+		tex_height_c = (int)(tex_width_c*box.getHeight()/box.getWidth());
+	    // tex_height_c = tex_width_c;
+	    System.out.println("FBO Size: "+tex_height_c+"x"+tex_width_c);
+		System.out.println("FBO Scale: " + m.glGetMatrixf().get(0) +" " + m.glGetMatrixf().get(5));
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		
+		if(fbo[0] > 0) {
+		    gl.glDeleteFramebuffers(1, fbo, 0);
+		    fbo[0] = 0;
+		}
+		if(texture[0]>0) {
+		    gl.glDeleteTextures(1, texture, 0);
+		    texture[0] = 0;
+		}
+		
+        gl.glGenFramebuffers(1, fbo, 0);
+		gl.glGenTextures(1, texture, 0);
+        gl.glGenRenderbuffers(1,rbo_depth, 0);
+        System.out.println("FBO: fbo " + fbo[0] + ", tex " + texture[0] + ", depth " + rbo_depth[0]);
+		
+        gl.glBindFramebuffer(GL2GL3.GL_DRAW_FRAMEBUFFER, fbo[0]);
+		gl.glBindTexture(GL2ES2.GL_TEXTURE_2D, texture[0]);
+		gl.glTexImage2D(GL2ES2.GL_TEXTURE_2D, 0, GL2ES2.GL_RGBA, tex_width_c, 
+				tex_height_c, 0, GL2ES2.GL_RGBA, GL2ES2.GL_UNSIGNED_BYTE, null);
+		
+		gl.glTexParameterf(GL2ES2.GL_TEXTURE_2D, GL2ES2.GL_TEXTURE_MIN_FILTER, GL2ES2.GL_LINEAR);
+		gl.glTexParameterf(GL2ES2.GL_TEXTURE_2D, GL2ES2.GL_TEXTURE_MAG_FILTER, GL2ES2.GL_LINEAR);
+		gl.glTexParameterf(GL2ES2.GL_TEXTURE_2D, GL2ES2.GL_TEXTURE_WRAP_S, GL2ES2.GL_CLAMP_TO_EDGE);
+		gl.glTexParameterf(GL2ES2.GL_TEXTURE_2D, GL2ES2.GL_TEXTURE_WRAP_T, GL2ES2.GL_CLAMP_TO_EDGE);
+
+	    gl.glFramebufferTexture2D(GL2GL3.GL_DRAW_FRAMEBUFFER, GL2ES2.GL_COLOR_ATTACHMENT0, 
+	                              GL2ES2.GL_TEXTURE_2D, texture[0], 0);
+
+        // Set up the depth buffer
+	    gl.glBindRenderbuffer(GL2ES2.GL_RENDERBUFFER, rbo_depth[0]);
+	    gl.glRenderbufferStorage(GL2ES2.GL_RENDERBUFFER, GL2ES2.GL_DEPTH_COMPONENT, tex_width_c, tex_height_c);
+	    gl.glFramebufferRenderbuffer(GL2ES2.GL_FRAMEBUFFER, GL2ES2.GL_DEPTH_COMPONENT, GL2ES2.GL_RENDERBUFFER, rbo_depth[0]);
+
+	    int status = gl.glCheckFramebufferStatus(GL2ES2.GL_FRAMEBUFFER);
+	    if(status != GL2ES2.GL_FRAMEBUFFER_COMPLETE){
+	    	System.err.println("Cant Create R2T pass!");
+	    }
+	    
+	    //render texture
+		PMVMatrix tex_matrix = new PMVMatrix();
+	    gl.glBindFramebuffer(GL2GL3.GL_DRAW_FRAMEBUFFER, fbo[0]);
+	    gl.glViewport(0, 0, tex_width_c, tex_height_c);
+	    tex_matrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+	    tex_matrix.glLoadIdentity();
+	    tex_matrix.glOrthof(box.getLow()[0], box.getHigh()[0], box.getLow()[1], box.getHigh()[1], -1, 1);
+	    
+	    if(!st.glUniform(gl, new GLUniformData("mgl_PMVMatrix", 4, 4, tex_matrix.glGetPMvMatrixf()))){
+	    	System.out.println("Cnt set tex based mat");
+	    }
+	    
+	    gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+	    gl.glClear(GL2ES2.GL_COLOR_BUFFER_BIT | GL2ES2.GL_DEPTH_BUFFER_BIT);
+	    renderRegion();
+
+	    gl.glBindFramebuffer(GL2ES2.GL_FRAMEBUFFER, 0);
+	    gl.glBindTexture(GL2ES2.GL_TEXTURE_2D, 0);
+	    
+	    setupBoundingBuffers();
+	}
+	
+	private void renderRegion(){
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(0));
+		gl.glEnableVertexAttribArray(VERTEX_ATTR_IDX);
+		gl.glVertexAttribPointer(VERTEX_ATTR_IDX, 3, GL2ES2.GL_FLOAT, false, 3 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(1));
+		gl.glEnableVertexAttribArray(TEXCOORD_ATTR_IDX);
+		gl.glVertexAttribPointer(TEXCOORD_ATTR_IDX, 2, GL2ES2.GL_FLOAT, false, 2 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, vboIds.get(2));
+		gl.glDrawElements(GL2ES2.GL_TRIANGLES, triangles.size() * 3, GL2ES2.GL_UNSIGNED_SHORT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+	}
+	
+	public void addTriangles(ArrayList<Triangle> tris) {
+		triangles.addAll(tris);
+		dirty = true;
+	}
+	
+	public int getNumVertices(){
+		return numVertices;
+	}
+	
+	public void addVertices(ArrayList<Vertex> verts){
+		vertices.addAll(verts);
+		numVertices = vertices.size();
+		dirty = true;
+	}
+	
+	public boolean isDirty(){
+		return dirty;
+	}
+	
+	public void destroy() {
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		gl.glDeleteBuffers(numBuffers, vboIds);
+		gl.glDeleteFramebuffers(1, fbo, 0);
+		fbo[0] = 0;
+		gl.glDeleteTextures(1, texture, 0);
+		texture[0] = 0;
+		gl.glDeleteRenderbuffers(1, rbo_depth, 0);
+		rbo_depth[0] = 0;
+	}
+	
+	public boolean isFlipped() {
+		return flipped;
+	}
+
+	public void setFlipped(boolean flipped) {
+		this.flipped = flipped;
+	}
+}
diff --git a/turtle2d/src/jogamp/graph/curve/opengl/VBORegionSPES2.java b/turtle2d/src/jogamp/graph/curve/opengl/VBORegionSPES2.java
new file mode 100644
index 000000000..701549d46
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/VBORegionSPES2.java
@@ -0,0 +1,185 @@
+/**
+ * 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 java.nio.IntBuffer;
+import java.nio.ShortBuffer;
+import java.util.ArrayList;
+
+import javax.media.opengl.GL2ES2;
+import javax.media.opengl.GLContext;
+
+import com.jogamp.common.nio.Buffers;
+import com.jogamp.graph.curve.Region;
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.graph.geom.Triangle;
+import com.jogamp.opengl.util.PMVMatrix;
+
+public class VBORegionSPES2  implements Region{
+	private int numVertices = 0;
+	private IntBuffer vboIds;
+	
+	private ArrayList<Triangle> triangles = new ArrayList<Triangle>();
+	private ArrayList<Vertex> vertices = new ArrayList<Vertex>();
+	
+	private GLContext context;
+	
+	private int numBuffers = 3;
+	
+	private boolean flipped = false;
+	private boolean dirty = false;
+	
+	public VBORegionSPES2(GLContext context){
+		this.context =context;
+	}
+	
+	public void update(){
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		ShortBuffer indicies = Buffers.newDirectShortBuffer(triangles.size() * 3);
+		
+		for(Triangle t:triangles){
+			final Vertex[] t_vertices = t.getVertices();
+			
+			if(t_vertices[0].getId() == Integer.MAX_VALUE){
+				t_vertices[0].setId(numVertices++);
+				t_vertices[1].setId(numVertices++);
+				t_vertices[2].setId(numVertices++);
+				
+				vertices.add(t.getVertices()[0]);
+				vertices.add(t.getVertices()[1]);
+				vertices.add(t.getVertices()[2]);
+
+				indicies.put((short) t.getVertices()[0].getId());
+				indicies.put((short) t.getVertices()[1].getId());
+				indicies.put((short) t.getVertices()[2].getId());
+			}
+			else{
+				Vertex v1 = t_vertices[0];
+				Vertex v2 = t_vertices[1];
+				Vertex v3 = t_vertices[2];
+				
+				indicies.put((short) v1.getId());
+				indicies.put((short) v2.getId());
+				indicies.put((short) v3.getId());
+			}
+		}
+		indicies.rewind();
+		
+		FloatBuffer verticesBuffer = Buffers.newDirectFloatBuffer(vertices.size() * 3);
+		for(Vertex v:vertices){
+			verticesBuffer.put(v.getX());
+			if(flipped){
+				verticesBuffer.put(-1*v.getY());
+			}
+			else{
+				verticesBuffer.put(v.getY());
+			}
+			verticesBuffer.put(v.getZ());
+		}
+		verticesBuffer.rewind();
+		
+		FloatBuffer texCoordBuffer = Buffers.newDirectFloatBuffer(vertices.size() * 2);
+		for(Vertex v:vertices){
+			float[] tex = v.getTexCoord();
+			texCoordBuffer.put(tex[0]);
+			texCoordBuffer.put(tex[1]);
+		}
+		texCoordBuffer.rewind();
+
+		vboIds = IntBuffer.allocate(numBuffers);
+		gl.glGenBuffers(numBuffers, vboIds);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(0)); // vertices
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, numVertices * 3 * Buffers.SIZEOF_FLOAT, verticesBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(1)); //texture
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, numVertices * 2 * Buffers.SIZEOF_FLOAT, texCoordBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, vboIds.get(2)); //triangles
+		gl.glBufferData(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, triangles.size()* 3 * Buffers.SIZEOF_SHORT, indicies, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, 0);
+		
+		dirty = false;
+	}
+	
+	private void render() {
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(0));
+		gl.glEnableVertexAttribArray(VERTEX_ATTR_IDX);
+		gl.glVertexAttribPointer(VERTEX_ATTR_IDX, 3, GL2ES2.GL_FLOAT, false, 3 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(1));
+		gl.glEnableVertexAttribArray(TEXCOORD_ATTR_IDX);
+		gl.glVertexAttribPointer(TEXCOORD_ATTR_IDX, 2, GL2ES2.GL_FLOAT, false, 2 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, vboIds.get(2));
+		gl.glDrawElements(GL2ES2.GL_TRIANGLES, triangles.size() * 3, GL2ES2.GL_UNSIGNED_SHORT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+	}
+	
+	public void render(PMVMatrix matrix, int vp_width, int vp_height, int width){
+		render();
+	}
+	
+	public void addTriangles(ArrayList<Triangle> tris) {
+		triangles.addAll(tris);
+		dirty = true;
+	}
+	
+	public int getNumVertices(){
+		return numVertices;
+	}
+	
+	public void addVertices(ArrayList<Vertex> verts){
+		vertices.addAll(verts);
+		numVertices = vertices.size();
+		dirty = true;
+	}
+	
+	public boolean isDirty(){
+		return dirty;
+	}
+	
+	public void destroy() {
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		gl.glDeleteBuffers(numBuffers, vboIds);
+	}
+	
+	public boolean isFlipped() {
+		return flipped;
+	}
+
+	public void setFlipped(boolean flipped) {
+		this.flipped = flipped;
+	}
+}
diff --git a/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.fp b/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.fp
new file mode 100644
index 000000000..2b3a0ce1d
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.fp
@@ -0,0 +1,99 @@
+//#version 100
+
+uniform float p1y;
+uniform float g_alpha;
+uniform vec3 g_color;
+uniform float a_strength;
+
+varying vec2 v_texCoord;
+
+vec3 b_color = vec3(0.0, 0.0, 0.0);
+
+uniform sampler2D texture;
+vec4 weights = vec4(0.075, 0.06, 0.045, 0.025);
+
+void main (void)
+{
+	vec2 rtex = vec2(abs(v_texCoord.x),abs(v_texCoord.y));
+	vec3 c = g_color;
+	
+	float alpha = 0.0;
+	
+	if((v_texCoord.x == 0.0) && (v_texCoord.y == 0.0)){
+	 	alpha = g_alpha;
+	}
+	else if((v_texCoord.x >= 5.0)){
+		vec2 dfx = dFdx(v_texCoord);
+		vec2 dfy = dFdy(v_texCoord);
+		
+		vec2 size = 1.0/textureSize(texture,0); //version 130
+		rtex -= 5.0;
+		vec4 t = texture2D(texture, rtex)* 0.18;
+
+		t += texture2D(texture, rtex + size*(vec2(1, 0)))*weights.x;
+		t +=  texture2D(texture, rtex - size*(vec2(1, 0)))*weights.x;
+		t +=  texture2D(texture, rtex + size*(vec2(0, 1)))*weights.x;
+		t +=  texture2D(texture, rtex - size*(vec2(0, 1)))*weights.x;
+		
+		t += texture2D(texture, rtex + 2.0*size*(vec2(1, 0))) *weights.y;
+		t +=  texture2D(texture, rtex - 2.0*size*(vec2(1, 0)))*weights.y;
+		t +=  texture2D(texture, rtex + 2.0*size*(vec2(0, 1)))*weights.y; 
+		t +=  texture2D(texture, rtex - 2.0*size*(vec2(0, 1)))*weights.y;
+		
+		t += texture2D(texture, rtex + 3.0*size*(vec2(1, 0))) *weights.z;
+		t +=  texture2D(texture, rtex - 3.0*size*(vec2(1, 0)))*weights.z;
+		t +=  texture2D(texture, rtex + 3.0*size*(vec2(0, 1)))*weights.z;
+		t +=  texture2D(texture, rtex - 3.0*size*(vec2(0, 1)))*weights.z;
+		
+		t += texture2D(texture, rtex + 4.0*size*(vec2(1, 0))) *weights.w;
+		t +=  texture2D(texture, rtex - 4.0*size*(vec2(1, 0)))*weights.w;
+		t +=  texture2D(texture, rtex + 4.0*size*(vec2(0, 1)))*weights.w;
+		t +=  texture2D(texture, rtex - 4.0*size*(vec2(0, 1)))*weights.w;
+		
+		if(t.w == 0.0){
+			discard;
+		}
+		
+		c = t.xyz;
+		alpha = g_alpha* t.w;
+	}
+	///////////////////////////////////////////////////////////
+	else if ((v_texCoord.x > 0.0) && (rtex.y > 0.0 || rtex.x == 1.0)){
+  		vec2 dtx = dFdx(rtex);
+  		vec2 dty = dFdy(rtex);
+  		
+  		rtex.y -= 0.1;
+  		if(rtex.y < 0.0) {
+  			if(v_texCoord.y < 0.0)
+  				discard;
+  			else{
+  				rtex.y = 0.0;
+  			}
+  		}
+  		
+  		vec2 f = vec2((dtx.y - 2.0*p1y*dtx.x + 4.0*p1y*rtex.x*dtx.x), (dty.y - 2.0*p1y*dty.x + 4.0*p1y*rtex.x*dty.x));
+  		
+  		float position = rtex.y - ((2.0 * rtex.x * p1y) * (1.0 - rtex.x));
+  		float d = position/(length(f));
+
+		float a = (0.5 - d * sign(v_texCoord.y));  
+		
+		
+		if (a >= 1.0)  { 
+	    	alpha = g_alpha;
+	    //	c = vec3(1.0,1.0,1.0);
+    	} 
+  		else if (a <= 0.0) {
+   			alpha = 0.0;//discard;
+   		//	c = vec3(0.0,0.0,0.0);
+   			
+   		}
+  		else {           
+    		alpha = g_alpha*a;
+    	//	c = vec3(a,a,a);
+    		mix(b_color,g_color, a);
+    	}  
+	}
+	
+    gl_FragColor = vec4(c, alpha);
+}
diff --git a/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.vp b/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.vp
new file mode 100644
index 000000000..bc9ecb41e
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.vp
@@ -0,0 +1,13 @@
+//#version 100
+
+uniform mat4 mgl_PMVMatrix[2];
+attribute vec4 v_position;
+attribute vec2 texCoord; 
+
+varying vec2 v_texCoord;
+
+void main(void)
+{
+  gl_Position = mgl_PMVMatrix[0] * mgl_PMVMatrix[1] * v_position;
+  v_texCoord = texCoord.st;
+}
\ No newline at end of file