6 files changed, 178 insertions, 24 deletions

diff --git a/js/helper-classes/RDGE/GLMaterial.js b/js/helper-classes/RDGE/GLMaterial.js
index c633f679..07a98ab5 100644
--- a/js/helper-classes/RDGE/GLMaterial.js
+++ b/js/helper-classes/RDGE/GLMaterial.js
@@ -31,6 +31,11 @@ function GLMaterial( world )
 
         this._texture;
 
+        // vertex deformation variables
+        this._hasVertexDeformation = false;
+        this._vertexDeformationRange = [0, 0, 1, 1];    // (xMin, yMin, xMax, yMax)
+        this._vertexDeformationTolerance = 0.05;
+
         // RDGE variables
         this._shader;
         this._materialNode;
@@ -66,6 +71,12 @@ function GLMaterial( world )
         // Any material needing continuous rendering should override this method
         this.isAnimated                 = function()                    {  return false;                                        }
 
+        // the vertex shader can apply deformations requiring refinement in
+        // certain areas.
+        this.hasVertexDeformation                       = function()    {  return this._hasVertexDeformation;                   }
+        this.getVertexDeformationRange          = function()    {  return this._vertexDeformationRange.slice();                 }       
+        this.getVertexDeformationTolerance      = function()    {  return this._vertexDeformationTolerance;             }
+
 
     ///////////////////////////////////////////////////////////////////////
     // Common Material Methods
diff --git a/js/helper-classes/RDGE/GLRectangle.js b/js/helper-classes/RDGE/GLRectangle.js
index 1bb4bcac..e72b4488 100644
--- a/js/helper-classes/RDGE/GLRectangle.js
+++ b/js/helper-classes/RDGE/GLRectangle.js
@@ -280,7 +280,7 @@ function GLRectangle()
 
                 // stroke
                 var strokeMaterial = this.makeStrokeMaterial();
-                prim = this.createStroke([x,y],  2*xFill,  2*yFill,  strokeSize,  tlRadius, blRadius, brRadius, trRadius, strokeMaterial)
+                prim = this.createStroke([x,y],  2*xFill,  2*yFill,  strokeSize,  tlRadius, blRadius, brRadius, trRadius);
         this._primArray.push( prim );
                 this._materialNodeArray.push( strokeMaterial.getMaterialNode() );
 
@@ -486,7 +486,7 @@ function GLRectangle()
         this.createStroke = function(ctr,  width,  height,  strokeWidth,  tlRad, blRad, brRad, trRad, material)
         {
                 // create the geometry
-                var prim = RectangleStroke.create( ctr,  width, height, strokeWidth,  tlRad, blRad,  brRad, trRad)
+                var prim = RectangleStroke.create( ctr,  width, height, strokeWidth,  tlRad, blRad,  brRad, trRad, material)
                 return prim;
         }
 
@@ -496,9 +496,9 @@ function GLRectangle()
                 // special the (common) case of no rounded corners
                 var prim
                 if ((tlRad <= 0) && (blRad <= 0) && (brRad <= 0) && (trRad <= 0))
-                        prim = RectangleGeometry.create( ctr, width, height );
+                        prim = RectangleGeometry.create( ctr, width, height, material );
                 else
-                        prim = RectangleFill.create( ctr,  width, height,  tlRad, blRad,  brRad, trRad);
+                        prim = RectangleFill.create( ctr,  width, height,  tlRad, blRad,  brRad, trRad, material);
 
                 return prim;
         }
@@ -747,7 +747,7 @@ function GLRectangle()
  }
 
 RectangleFill = {};
-RectangleFill.create = function( rectCtr,  width, height, tlRad, blRad,  brRad, trRad)
+RectangleFill.create = function( rectCtr,  width, height, tlRad, blRad,  brRad, trRad,  material)
 {
         var x = rectCtr[0],  y = rectCtr[1],  z = 0.0;
         var     hw = 0.5*width,  hh = 0.5*height;
@@ -834,6 +834,17 @@ RectangleFill.create = function( rectCtr,  width, height, tlRad, blRad,  brRad,
                 j++;
         }
 
+        //refine the mesh for vertex deformations
+        if (material)
+        {
+                if (material.hasVertexDeformation())
+                {
+                        var paramRange = material.getVertexDeformationRange();
+                        var tolerance = material.getVertexDeformationTolerance();
+                        nVertices = ShapePrimitive.refineMesh( this.vertices, this.normals, this.uvs, this.indices, nVertices,  paramRange,  tolerance );
+                }
+        }
+
         // create the RDGE primitive
         var prim = ShapePrimitive.create(this.vertices, this.normals, this.uvs, this.indices, g_Engine.getContext().renderer.TRIANGLES, nVertices);
         return prim;
@@ -906,7 +917,7 @@ RectangleFill.getRoundedCorner = function(ctr, startPt,  vertices)
 
 
 RectangleStroke = {};
-RectangleStroke.create = function( rectCtr,  width, height, strokeWidth,  tlRad, blRad,  brRad, trRad)
+RectangleStroke.create = function( rectCtr,  width, height, strokeWidth,  tlRad, blRad,  brRad, trRad, material)
 {
         var x = rectCtr[0],  y = rectCtr[1],  z = 0.0;
         var     hw = 0.5*width,  hh = 0.5*height,  sw = strokeWidth;
@@ -1097,6 +1108,17 @@ RectangleStroke.create = function( rectCtr,  width, height, strokeWidth,  tlRad,
                 k++;
         }
 
+        //refine the mesh for vertex deformations
+        if (material)
+        {
+                if (material.hasVertexDeformation())
+                {
+                        var paramRange = material.getVertexDeformationRange();
+                        var tolerance = material.getVertexDeformationTolerance();
+                        nVertices = ShapePrimitive.refineMesh( this.vertices, this.normals, this.uvs, this.indices, nVertices,  paramRange,  tolerance );
+                }
+        }
+
         // create the RDGE primitive
         var prim = ShapePrimitive.create(this.vertices, this.normals, this.uvs, this.indices, g_Engine.getContext().renderer.TRIANGLES, nVertices);
         return prim;
@@ -1141,7 +1163,7 @@ RectangleStroke.getUV		= RectangleFill.getUV;
 
 // Helper function for generating Three.js geometry
 RectangleGeometry = {};
-RectangleGeometry.create = function( ctr,  width, height )
+RectangleGeometry.create = function( ctr,  width, height, material )
 {
         var x = ctr[0],  y = ctr[1],  z = 0.0;
         var     hw = 0.5*width,  hh = 0.5*height;
@@ -1179,6 +1201,17 @@ RectangleGeometry.create = function( ctr,  width, height )
         RectangleGeometry.pushIndices( 2, 1, 0 );
         RectangleGeometry.pushIndices( 0, 3, 2 );
 
+        //refine the mesh for vertex deformations
+        if (material)
+        {
+                if (material.hasVertexDeformation())
+                {
+                        var paramRange = material.getVertexDeformationRange();
+                        var tolerance = material.getVertexDeformationTolerance();
+                        nVertices = ShapePrimitive.refineMesh( this.vertices, this.normals, this.uvs, this.indices, nVertices,  paramRange,  tolerance );
+                }
+        }
+
         // create the RDGE primitive
         var prim = ShapePrimitive.create(this.vertices, this.normals, this.uvs, this.indices, g_Engine.getContext().renderer.TRIANGLES, nVertices);
         return prim;
@@ -1249,4 +1282,103 @@ ShapePrimitive.create = function(coords,  normals,  uvs,  indices, primType, ver
         renderer.createPrimitive(prim, vertexCount);
 
         return prim;
-}
\ No newline at end of file
+}
+
+
+ShapePrimitive.refineMesh = function( verts, norms, uvs, indices, nVertices,  paramRange,  tolerance )
+{
+        // get the param range
+        var pUMin = paramRange[0],  pVMin = paramRange[1],
+                pUMax = paramRange[2],  pVMax = paramRange[3];
+        var iTriangle = 0;
+        var nTriangles = indices.length/3;
+        var index = 0;
+        while (iTriangle < nTriangles)
+        {
+                // get the indices of the 3 vertices
+                var i0 = indices[index],
+                        i1 = indices[index+1],
+                        i2 = indices[index+2];
+
+                // get the uv values
+                var vrtIndex = 3*iTriangle;
+                var iuv0 = 2 * i0,
+                        iuv1 = 2 * i1,
+                        iuv2 = 2 * i2;
+                var u0 = uvs[iuv0],  v0 = uvs[iuv0+1],
+                        u1 = uvs[iuv1],  v1 = uvs[iuv1+1],
+                        u2 = uvs[iuv2],  v2 = uvs[iuv2+1];
+
+                // find the u and v range
+                var uMin = u0,  vMin = v0;
+                if (u1 < uMin)  uMin = u1;  if (v1 < vMin)  vMin = v1;
+                if (u2 < uMin)  uMin = u2;  if (v2 < vMin)  vMin = v2;
+                var uMax = u0,  vMax = v0;
+                if (u1 > uMax)  uMax = u1;  if (v1 > vMax)  vMax = v1;
+                if (u2 > uMax)  uMax = u2;  if (v2 > vMax)  vMax = v2;
+
+                // if the parameter range of the triangle is outside the
+                // desired parameter range, advance to the next polygon and continue
+                if ((uMin > pUMax) || (uMax < pUMin) || (vMin > pVMax) || (vMax < pVMin))
+                {
+                        // go to the next triangle
+                        iTriangle++;
+                        index += 3;
+                }
+