Added nonuniform weight impl; misc enhancements/cleanups

Seperate texcoords from shaprness
Added NonUniform weight shader impl for region impl only (not text)
Refactor p1y --> weight (equiv to nurbs weight)
cleanup shader uniforms (rename/remove unneeded)
Enhanced blending of text
GPURegionNewtDemo01 - added weight W/Q to manipulate weight
refactor r2t --> vbaa (matching algorithm name)

16 files changed, 197 insertions, 110 deletions

diff --git a/src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java b/src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java
index 724380f4a..c995b3749 100755
--- a/src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java
+++ b/src/jogl/classes/com/jogamp/graph/curve/OutlineShape.java
@@ -264,28 +264,19 @@ public class OutlineShape {
         return vertices;

     }

 

-    /** Triangulate the outline shape generating a list of triangles

-     * @return an arraylist of triangles representing the filled region

-     * which is produced by the combination of the outlines 

-     */

-    public ArrayList<Triangle> triangulate(){

-        return triangulate(0.5f);

-    }

 

     /**Triangulate the {@link OutlineShape} generating a list of triangles

-     * @param sharpness defines the curvature strength around the off-curve vertices.

-     * defaults to 0.5f

      * @return an arraylist of triangles representing the filled region

      * which is produced by the combination of the outlines

      */

-    public ArrayList<Triangle> triangulate(float sharpness){

+    public ArrayList<Triangle> triangulate(){

         if(outlines.size() == 0){

             return null;

         }

         sortOutlines();

         generateVertexIds();

         

-        CDTriangulator2D triangulator2d = new CDTriangulator2D(sharpness);

+        CDTriangulator2D triangulator2d = new CDTriangulator2D();

         for(int index = 0; index< outlines.size();index++){

             Outline outline = outlines.get(index);

             triangulator2d.addCurve(outline);

diff --git a/src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java b/src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java
index 69fdd5c4a..03a696f35 100644
--- a/src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java
+++ b/src/jogl/classes/com/jogamp/graph/curve/opengl/RegionRenderer.java
@@ -41,17 +41,34 @@ import com.jogamp.graph.geom.Vertex;
 
 public abstract class RegionRenderer extends Renderer {
 
+    private boolean uniform = true;
     /** 
-     * Create a Hardware accelerated Text Renderer.
+     * Create a Hardware accelerated Region Renderer.
      * @param rs the used {@link RenderState} 
-     * @param renderType either {@link com.jogamp.graph.curve.Region#SINGLE_PASS} or {@link com.jogamp.graph.curve.Region#TWO_PASS}
+     * @param type either {@link com.jogamp.graph.curve.Region#SINGLE_PASS} or {@link com.jogamp.graph.curve.Region#TWO_PASS}
+     * @return an instance of Region Renderer
      */
     public static RegionRenderer create(RenderState rs, int type) {
-        return new jogamp.graph.curve.opengl.RegionRendererImpl01(rs, type);
+        return new jogamp.graph.curve.opengl.RegionRendererImpl01(rs, type, true);
     }
     
-    protected RegionRenderer(RenderState rs, int type) {
+    /** Create a Hardware accelerated Region Renderer.
+     * @param rs the used {@link RenderState}
+     * @param type either {@link com.jogamp.graph.curve.Region#SINGLE_PASS} or {@link com.jogamp.graph.curve.Region#TWO_PASS}
+     * @param unifrom flag true unifrom weights for offcurve vertex, else otherwise.
+     * @return an instance of Region Renderer
+     */
+    public static RegionRenderer create(RenderState rs, int type, boolean unifrom) {
+        return new jogamp.graph.curve.opengl.RegionRendererImpl01(rs, type, unifrom);
+    }
+    
+    protected RegionRenderer(RenderState rs, int type, boolean unifrom) {
         super(rs, type);
+        this.uniform = unifrom;
+    }
+    
+    public boolean isUniform(){
+        return uniform;
     }
     
     /** Render an array of {@link OutlineShape}s combined in one region
@@ -97,7 +114,7 @@ public abstract class RegionRenderer extends Renderer {
         Region region = RegionFactory.create(rs, renderType);
         
         outlineShape.transformOutlines(OutlineShape.QUADRATIC_NURBS);
-        ArrayList<Triangle> triangles = (ArrayList<Triangle>) outlineShape.triangulate(rs.getSharpness().floatValue());
+        ArrayList<Triangle> triangles = (ArrayList<Triangle>) outlineShape.triangulate();
         ArrayList<Vertex> vertices = (ArrayList<Vertex>) outlineShape.getVertices();
         region.addVertices(vertices);
         region.addTriangles(triangles);
@@ -118,7 +135,7 @@ public abstract class RegionRenderer extends Renderer {
         for(OutlineShape outlineShape:outlineShapes){
             outlineShape.transformOutlines(OutlineShape.QUADRATIC_NURBS);
 
-            ArrayList<Triangle> triangles = outlineShape.triangulate(rs.getSharpness().floatValue());
+            ArrayList<Triangle> triangles = outlineShape.triangulate();
             region.addTriangles(triangles);
             
             ArrayList<Vertex> vertices = outlineShape.getVertices();
diff --git a/src/jogl/classes/com/jogamp/graph/curve/opengl/RenderState.java b/src/jogl/classes/com/jogamp/graph/curve/opengl/RenderState.java
index 84323f6e5..991d07012 100644
--- a/src/jogl/classes/com/jogamp/graph/curve/opengl/RenderState.java
+++ b/src/jogl/classes/com/jogamp/graph/curve/opengl/RenderState.java
@@ -42,10 +42,10 @@ public interface RenderState {
     Vertex.Factory<? extends Vertex> getPointFactory();
     PMVMatrix pmvMatrix();
     GLUniformData getPMVMatrix();
-    GLUniformData getSharpness();
+    GLUniformData getWeight();
     GLUniformData getAlpha();
     GLUniformData getColorStatic();
-    GLUniformData getStrength();
+   // GLUniformData getStrength();
     
     RenderState attachTo(GL2ES2 gl);
     boolean detachFrom(GL2ES2 gl);   
diff --git a/src/jogl/classes/com/jogamp/graph/curve/opengl/Renderer.java b/src/jogl/classes/com/jogamp/graph/curve/opengl/Renderer.java
index 35022f769..c96488853 100644
--- a/src/jogl/classes/com/jogamp/graph/curve/opengl/Renderer.java
+++ b/src/jogl/classes/com/jogamp/graph/curve/opengl/Renderer.java
@@ -144,9 +144,9 @@ public abstract class Renderer {
             return false;
         }
         
-        if(!rs.getShaderState().uniform(gl, rs.getSharpness())) {
+        if(!rs.getShaderState().uniform(gl, rs.getWeight())) {
             if(DEBUG){
-                System.err.println("Error setting sharpness in shader: "+rs.getShaderState());
+                System.err.println("Error setting weight in shader: "+rs.getShaderState());
             }
             return false;
         }
@@ -164,10 +164,6 @@ public abstract class Renderer {
             }
             return false;
         }        
-        
-        if(!rs.getShaderState().uniform(gl, rs.getStrength())) {
-            System.err.println("Error setting antialias strength in shader: "+rs.getShaderState());
-        }
                 
         return initialized;
     }
@@ -193,25 +189,16 @@ public abstract class Renderer {
         rs.getShaderState().useProgram(gl, enable);
     }
 
-    public float getSharpness() {
-        return rs.getSharpness().floatValue();
+    public float getWeight() {
+        return rs.getWeight().floatValue();
     }
     
-    public void setSharpness(GL2ES2 gl, float v) {
-        rs.getSharpness().setData(v);
-        if(null != gl && rs.getShaderState().inUse()) {
-            rs.getShaderState().uniform(gl, rs.getSharpness());
-        }
-    }
-
-    public float getStrength() {
-        return rs.getStrength().floatValue();
-    }
-    
-    public void setStrength(GL2ES2 gl, float v) {
-        rs.getStrength().setData(v);
+    public void setWeight(GL2ES2 gl, float v) {
+        if(v > 1.9f || v < 0.0f)
+            return;
+        rs.getWeight().setData(v);
         if(null != gl && rs.getShaderState().inUse()) {
-            rs.getShaderState().uniform(gl, rs.getStrength());
+            rs.getShaderState().uniform(gl, rs.getWeight());
         }
     }
     
diff --git a/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRenderer.java b/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRenderer.java
index deaa1dfad..75f3e017a 100644
--- a/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRenderer.java
+++ b/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRenderer.java
@@ -83,7 +83,7 @@ public abstract class TextRenderer extends Renderer {
         AffineTransform affineTransform = new AffineTransform(rs.getPointFactory());
         
         Path2D[] paths = new Path2D[str.length()];
-        ((FontInt)font).getOutline(str, size, affineTransform, paths);
+        ((FontInt)font).getPaths(str, size, affineTransform, paths);
         
         GlyphString glyphString = new GlyphString(font.getName(Font.NAME_UNIQUNAME), str);
         glyphString.createfromFontPath(rs.getPointFactory(), paths, affineTransform);
diff --git a/src/jogl/classes/com/jogamp/graph/curve/tess/CDTriangulator2D.java b/src/jogl/classes/com/jogamp/graph/curve/tess/CDTriangulator2D.java
index 42eebf7a8..2954157c6 100644
--- a/src/jogl/classes/com/jogamp/graph/curve/tess/CDTriangulator2D.java
+++ b/src/jogl/classes/com/jogamp/graph/curve/tess/CDTriangulator2D.java
@@ -58,16 +58,9 @@ public class CDTriangulator2D {
     private int maxTriID = 0;
 
     
-    public CDTriangulator2D() {
-        this(0.5f);
-    }
-    
     /** Constructor for a new Delaunay triangulator
-     * @param curveSharpness the curvature around
-     *  the off-curve vertices
      */
-    public CDTriangulator2D(float curveSharpness) {
-        this.sharpness = curveSharpness;
+    public CDTriangulator2D() {
         reset();
     }
     
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java b/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
index 0b47606e4..6f79e1407 100755
--- a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
@@ -41,20 +41,29 @@ import com.jogamp.opengl.util.glsl.ShaderProgram;
 import com.jogamp.opengl.util.glsl.ShaderState;

 

 public class RegionRendererImpl01 extends RegionRenderer {

-    public RegionRendererImpl01(RenderState rs, int type) {

-        super(rs, type);

-        // rs.getSharpness().setData(0.5f);

-        // rs.getAlpha().setData(1.0f);

-        // rs.getStrength().setData(3.0f);                                

+    public RegionRendererImpl01(RenderState rs, int type, boolean uniform) {

+        super(rs, type, uniform);

+        

+    }

+    

+    private String getVertexShaderName(){

+        return "curverenderer01";

+    }

+    

+    private String getFragmentShaderName(){

+        if(!isUniform()){

+            return "curverenderer02";

+        }

+        return "curverenderer01";

     }

     

     protected boolean initShaderProgram(GL2ES2 gl) {

         final ShaderState st = rs.getShaderState();

         

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

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

+                "shader", "shader/bin", getVertexShaderName());

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

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

+                "shader", "shader/bin", getFragmentShaderName());

     

         ShaderProgram sp = new ShaderProgram();

         sp.add(rsVp);

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/RenderStateImpl.java b/src/jogl/classes/jogamp/graph/curve/opengl/RenderStateImpl.java
index eef64dab5..350c77d98 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/RenderStateImpl.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/RenderStateImpl.java
@@ -49,14 +49,13 @@ public class RenderStateImpl implements RenderState {
     private final GLUniformData gcu_PMVMatrix;                    
         
     /**
-     * Sharpness is equivalent to the texture-coord component <i>t</i>
-     * on the off-curve vertex. Higher values of sharpness will 
-     * result in higher curvature.
+     * weight is equivalent to the 
+     * global off-curve vertex weight.
+     * TODO: change to per vertex
      */
-    private final GLUniformData gcu_Sharpness;
+    private final GLUniformData gcu_Weight;
     private final GLUniformData gcu_Alpha;
     private final GLUniformData gcu_ColorStatic;
-    private final GLUniformData gcu_Strength;
 
     public static final RenderState getRenderState(GL2ES2 gl) {
         return (RenderState) gl.getContext().getAttachedObject(RenderState.class.getName());
@@ -69,14 +68,14 @@ public class RenderStateImpl implements RenderState {
         this.gcu_PMVMatrix = new GLUniformData(UniformNames.gcu_PMVMatrix, 4, 4, pmvMatrix.glGetPMvMatrixf());
         st.ownUniform(gcu_PMVMatrix);
         
-        gcu_Sharpness = new GLUniformData(UniformNames.gcu_P1Y, 0.5f);
+        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);
+//        gcu_Strength = new GLUniformData(UniformNames.gcu_Strength, 3.0f);
+//        st.ownUniform(gcu_Strength);
     }
     
     public RenderStateImpl(ShaderState st, Vertex.Factory<? extends Vertex> pointFactory) {
@@ -94,10 +93,10 @@ public class RenderStateImpl implements RenderState {
     public final Vertex.Factory<? extends Vertex> getPointFactory () { return pointFactory; }
     public final PMVMatrix pmvMatrix() { return pmvMatrix; }
     public final GLUniformData getPMVMatrix() { return gcu_PMVMatrix; }
-    public final GLUniformData getSharpness() { return gcu_Sharpness; }
+    public final GLUniformData getWeight() { return gcu_Weight; }
     public final GLUniformData getAlpha() { return gcu_Alpha; }
     public final GLUniformData getColorStatic() { return gcu_ColorStatic; }
-    public final GLUniformData getStrength() { return gcu_Strength; }
+    //public final GLUniformData getStrength() { return gcu_Strength; }
     
     public void destroy(GL2ES2 gl) {
         st.destroy(gl);
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java b/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
index 2255251a7..257d05fca 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
@@ -42,11 +42,7 @@ import com.jogamp.opengl.util.glsl.ShaderState;
 
 public class TextRendererImpl01 extends TextRenderer {    
     public TextRendererImpl01(RenderState rs, int type) {
-        super(rs, type);
-        // rs.getSharpness().setData(0.5f);
-        // rs.getAlpha().setData(1.0f);
-        // rs.getStrength().setData(3.0f);                        
-        rs.getStrength().setData(1.9f);                        
+        super(rs, type);                     
     }
     
     @Override
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 2e04278ca..bb6ff987d 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/UniformNames.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/UniformNames.java
@@ -4,7 +4,6 @@ public class UniformNames {
     public static final String gcu_PMVMatrix = "gcu_PMVMatrix"; // 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_P1Y = "gcu_P1Y";
-    public static final String gcu_Strength = "gcu_Strength";
+    public static final String gcu_Weight = "gcu_Weight";
     public static final String gcu_TextureUnit = "gcu_TextureUnit";
 }
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.fp
index 975c2dc5b..b3693ec88 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.fp
@@ -12,8 +12,8 @@
 #include uniforms.glsl
 #include varyings.glsl
 
-const vec3 b_color = vec3(0.0, 0.0, 0.0);
-const vec4 weights = vec4(0.075, 0.06, 0.045, 0.025);
+const vec3 b_color = vec3(1.0, 1.0, 1.0);
+const vec4 tex_weights = vec4(0.075, 0.06, 0.045, 0.025);
 
 void main (void)
 {
@@ -33,25 +33,25 @@ void main (void)
         rtex -= 5.0;
         vec4 t = texture2D(gcu_TextureUnit, rtex)* 0.18;
 
-        t += texture2D(gcu_TextureUnit, rtex + size*(vec2(1, 0)))*weights.x;
-        t += texture2D(gcu_TextureUnit, rtex - size*(vec2(1, 0)))*weights.x;
-        t += texture2D(gcu_TextureUnit, rtex + size*(vec2(0, 1)))*weights.x;
-        t += texture2D(gcu_TextureUnit, rtex - size*(vec2(0, 1)))*weights.x;
+        t += texture2D(gcu_TextureUnit, rtex + size*(vec2(1, 0)))*tex_weights.x;
+        t += texture2D(gcu_TextureUnit, rtex - size*(vec2(1, 0)))*tex_weights.x;
+        t += texture2D(gcu_TextureUnit, rtex + size*(vec2(0, 1)))*tex_weights.x;
+        t += texture2D(gcu_TextureUnit, rtex - size*(vec2(0, 1)))*tex_weights.x;
         
-        t += texture2D(gcu_TextureUnit, rtex + 2.0*size*(vec2(1, 0)))*weights.y;
-        t += texture2D(gcu_TextureUnit, rtex - 2.0*size*(vec2(1, 0)))*weights.y;
-        t += texture2D(gcu_TextureUnit, rtex + 2.0*size*(vec2(0, 1)))*weights.y; 
-        t += texture2D(gcu_TextureUnit, rtex - 2.0*size*(vec2(0, 1)))*weights.y;
+        t += texture2D(gcu_TextureUnit, rtex + 2.0*size*(vec2(1, 0)))*tex_weights.y;
+        t += texture2D(gcu_TextureUnit, rtex - 2.0*size*(vec2(1, 0)))*tex_weights.y;
+        t += texture2D(gcu_TextureUnit, rtex + 2.0*size*(vec2(0, 1)))*tex_weights.y; 
+        t += texture2D(gcu_TextureUnit, rtex - 2.0*size*(vec2(0, 1)))*tex_weights.y;
         
-        t += texture2D(gcu_TextureUnit, rtex + 3.0*size*(vec2(1, 0)))*weights.z;
-        t += texture2D(gcu_TextureUnit, rtex - 3.0*size*(vec2(1, 0)))*weights.z;
-        t += texture2D(gcu_TextureUnit, rtex + 3.0*size*(vec2(0, 1)))*weights.z;
-        t += texture2D(gcu_TextureUnit, rtex - 3.0*size*(vec2(0, 1)))*weights.z;
+        t += texture2D(gcu_TextureUnit, rtex + 3.0*size*(vec2(1, 0)))*tex_weights.z;
+        t += texture2D(gcu_TextureUnit, rtex - 3.0*size*(vec2(1, 0)))*tex_weights.z;
+        t += texture2D(gcu_TextureUnit, rtex + 3.0*size*(vec2(0, 1)))*tex_weights.z;
+        t += texture2D(gcu_TextureUnit, rtex - 3.0*size*(vec2(0, 1)))*tex_weights.z;
         
-        t += texture2D(gcu_TextureUnit, rtex + 4.0*size*(vec2(1, 0)))*weights.w;
-        t += texture2D(gcu_TextureUnit, rtex - 4.0*size*(vec2(1, 0)))*weights.w;
-        t += texture2D(gcu_TextureUnit, rtex + 4.0*size*(vec2(0, 1)))*weights.w;
-        t += texture2D(gcu_TextureUnit, rtex - 4.0*size*(vec2(0, 1)))*weights.w;
+        t += texture2D(gcu_TextureUnit, rtex + 4.0*size*(vec2(1, 0)))*tex_weights.w;
+        t += texture2D(gcu_TextureUnit, rtex - 4.0*size*(vec2(1, 0)))*tex_weights.w;
+        t += texture2D(gcu_TextureUnit, rtex + 4.0*size*(vec2(0, 1)))*tex_weights.w;
+        t += texture2D(gcu_TextureUnit, rtex - 4.0*size*(vec2(0, 1)))*tex_weights.w;
         
         if(t.w == 0.0){
             discard;
@@ -85,7 +85,7 @@ void main (void)
             alpha = gcu_Alpha;
         }  
         else if (a <= 0.0) {
-            alpha = 0.0;//discard;
+            discard;
         }
         else {           
             alpha = gcu_Alpha * a;
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02.fp
new file mode 100755
index 000000000..e3d5bc074
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02.fp
@@ -0,0 +1,97 @@
+//Copyright 2010 JogAmp Community. All rights reserved.

+/**

+#ifdef GL_ES

+    #version 100

+#else

+    #version 110

+#endif

+ */

+ 

+#include uniforms.glsl

+#include varyings.glsl

+

+const vec3 b_color = vec3(0.0, 0.0, 0.0);

+const vec4 tex_weights = vec4(0.075, 0.06, 0.045, 0.025);

+

+void main (void)

+{

+    vec2 rtex = vec2(abs(gcv_TexCoord.x),abs(gcv_TexCoord.y));

+    vec3 c = gcu_ColorStatic.rgb;

+    

+    float alpha = 0.0;

+    

+    if((gcv_TexCoord.x == 0.0) && (gcv_TexCoord.y == 0.0)){

+         alpha = gcu_Alpha;

+    }

+    else if((gcv_TexCoord.x >= 5.0)){

+        vec2 dfx = dFdx(gcv_TexCoord);

+        vec2 dfy = dFdy(gcv_TexCoord);

+        

+        vec2 size = 1.0/textureSize(gcu_TextureUnit,0); //version 130 - FIXME: replace with uniform value

+        rtex -= 5.0;

+        vec4 t = texture2D(gcu_TextureUnit, rtex)* 0.18;

+

+        t += texture2D(gcu_TextureUnit, rtex + size*(vec2(1, 0)))*tex_weights.x;

+        t += texture2D(gcu_TextureUnit, rtex - size*(vec2(1, 0)))*tex_weights.x;

+        t += texture2D(gcu_TextureUnit, rtex + size*(vec2(0, 1)))*tex_weights.x;

+        t += texture2D(gcu_TextureUnit, rtex - size*(vec2(0, 1)))*tex_weights.x;

+        

+        t += texture2D(gcu_TextureUnit, rtex + 2.0*size*(vec2(1, 0)))*tex_weights.y;

+        t += texture2D(gcu_TextureUnit, rtex - 2.0*size*(vec2(1, 0)))*tex_weights.y;

+        t += texture2D(gcu_TextureUnit, rtex + 2.0*size*(vec2(0, 1)))*tex_weights.y; 

+        t += texture2D(gcu_TextureUnit, rtex - 2.0*size*(vec2(0, 1)))*tex_weights.y;

+        

+        t += texture2D(gcu_TextureUnit, rtex + 3.0*size*(vec2(1, 0)))*tex_weights.z;

+        t += texture2D(gcu_TextureUnit, rtex - 3.0*size*(vec2(1, 0)))*tex_weights.z;

+        t += texture2D(gcu_TextureUnit, rtex + 3.0*size*(vec2(0, 1)))*tex_weights.z;

+        t += texture2D(gcu_TextureUnit, rtex - 3.0*size*(vec2(0, 1)))*tex_weights.z;

+        

+        t += texture2D(gcu_TextureUnit, rtex + 4.0*size*(vec2(1, 0)))*tex_weights.w;

+        t += texture2D(gcu_TextureUnit, rtex - 4.0*size*(vec2(1, 0)))*tex_weights.w;

+        t += texture2D(gcu_TextureUnit, rtex + 4.0*size*(vec2(0, 1)))*tex_weights.w;

+        t += texture2D(gcu_TextureUnit, rtex - 4.0*size*(vec2(0, 1)))*tex_weights.w;

+        

+        if(t.w == 0.0){

+            discard;

+        }

+        

+        c = t.xyz;

+        alpha = gcu_Alpha * t.w;

+    }

+    ///////////////////////////////////////////////////////////

+    else if ((gcv_TexCoord.x > 0.0) && (rtex.y > 0.0 || rtex.x == 1.0)){

+        rtex.y -= 0.1;

+        

+        if(rtex.y < 0.0) {

+            if(gcv_TexCoord.y < 0.0)

+                discard;

+            else{

+                rtex.y = 0.0;

+            }

+        }

+        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*rtex.x))/gd), (dty.y - (w*dty.x*(1.0 - 2*rtex.x))/gd));

+

+        float d = position/(length(f));

+		float a = (0.5 - d * sign(gcv_TexCoord.y));  

+        if (a >= 1.0){

+            alpha = gcu_Alpha;

+        }  

+        else if (a <= 0.0) {

+            discard;

+        }

+        else {           

+            alpha = gcu_Alpha*a;

+        }

+    }

+    gl_FragColor = vec4(c, alpha);

+}

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 677c7324f..332edd02b 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/uniforms.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/uniforms.glsl
@@ -9,8 +9,7 @@
 uniform HIGHP mat4    gcu_PMVMatrix[3]; // P, Mv, and Mvi
 uniform HIGHP vec3    gcu_ColorStatic;
 uniform HIGHP float   gcu_Alpha;
-uniform HIGHP float   gcu_P1Y;
-uniform HIGHP float   gcu_Strength;
+uniform HIGHP float   gcu_Weight;
 uniform sampler2D     gcu_TextureUnit;
 
 // uniform HIGHP mat3    gcu_NormalMatrix; // transpose(inverse(ModelView)).3x3
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 e70c25266..0b821524c 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
@@ -6,7 +6,7 @@
 
 #include consts.glsl
 
-varying   vec4    gcv_FrontColor;
+//varying   vec4    gcv_FrontColor;
 varying   vec2    gcv_TexCoord;
 
 #endif // varyings_glsl
diff --git a/src/jogl/classes/jogamp/graph/curve/text/GlyphShape.java b/src/jogl/classes/jogamp/graph/curve/text/GlyphShape.java
index 4d1880064..91a7e4246 100644
--- a/src/jogl/classes/jogamp/graph/curve/text/GlyphShape.java
+++ b/src/jogl/classes/jogamp/graph/curve/text/GlyphShape.java
@@ -145,11 +145,10 @@ public class GlyphShape {
     }
     
     /** Triangluate the glyph shape
-     * @param sharpness sharpness of the curved regions default = 0.5
      * @return ArrayList of triangles which define this shape
      */
-    public ArrayList<Triangle> triangulate(float sharpness){
-        return shape.triangulate(sharpness);
+    public ArrayList<Triangle> triangulate(){
+        return shape.triangulate();
     }
 
     /** Get the list of Vertices of this Object
diff --git a/src/jogl/classes/jogamp/graph/curve/text/GlyphString.java b/src/jogl/classes/jogamp/graph/curve/text/GlyphString.java
index 1faee87ff..a904c2b48 100644
--- a/src/jogl/classes/jogamp/graph/curve/text/GlyphString.java
+++ b/src/jogl/classes/jogamp/graph/curve/text/GlyphString.java
@@ -73,18 +73,18 @@ public class GlyphString {
     }
 
     /** Creates the Curve based Glyphs from a Font 
-     * @param pointFactory TODO
+     * @param vertexFactory vertex impl factory {@link Factory}
      * @param paths a list of FontPath2D objects that define the outline
      * @param affineTransform a global affine transformation applied to the paths.
      */
-    public void createfromFontPath(Factory<? extends Vertex> pointFactory, Path2D[] paths, AffineTransform affineTransform) {
+    public void createfromFontPath(Factory<? extends Vertex> vertexFactory, Path2D[] paths, AffineTransform affineTransform) {
         final int numGlyps = paths.length;
         for (int index=0;index<numGlyps;index++){
             if(paths[index] == null){
                 continue;
             }
             PathIterator iterator = paths[index].iterator(affineTransform);
-            GlyphShape glyphShape = new GlyphShape(pointFactory, iterator);
+            GlyphShape glyphShape = new GlyphShape(vertexFactory, iterator);
             
             if(glyphShape.getNumVertices() < 3) {
                 continue;
@@ -93,25 +93,26 @@ public class GlyphString {
         }
     }
     
-    private ArrayList<Triangle> initializeTriangles(float sharpness){
+    private ArrayList<Triangle> initializeTriangles(){
         ArrayList<Triangle> triangles = new ArrayList<Triangle>();
         for(GlyphShape glyph:glyphs){
-            ArrayList<Triangle> tris = glyph.triangulate(sharpness);
+            ArrayList<Triangle> tris = glyph.triangulate();
             triangles.addAll(tris);
         }
         return triangles;
     }
-    
+
     /** Generate a OGL Region to represent this Object.
-     * @param context the GLContext which the region is defined by.
-     * @param shaprness the curvature sharpness of the object.
-     * @param st shader state
+     * @param gl the current gl object
+     * @param rs the current attached RenderState
+     * @param type either {@link com.jogamp.graph.curve.Region#SINGLE_PASS} 
+     * or {@link com.jogamp.graph.curve.Region#TWO_PASS}
      */
     public void generateRegion(GL2ES2 gl, RenderState rs, int type){
         region = RegionFactory.create(rs, type);
         region.setFlipped(true);
         
-        ArrayList<Triangle> tris = initializeTriangles(rs.getSharpness().floatValue());
+        ArrayList<Triangle> tris = initializeTriangles();
         region.addTriangles(tris);
         
         int numVertices = region.getNumVertices();
@@ -155,7 +156,7 @@ public class GlyphString {
     }
 
     /** Destroy the associated OGL objects
-     * @param rs TODO
+     * @param rs the current attached RenderState
      */
     public void destroy(GL2ES2 gl, RenderState rs){
         region.destroy(gl, rs);