1 files changed, 51 insertions, 13 deletions

diff --git a/assets/canvas-runtime.js b/assets/canvas-runtime.js
index adff0e8c..5ea2a85f 100644
--- a/assets/canvas-runtime.js
+++ b/assets/canvas-runtime.js
@@ -505,6 +505,8 @@ function RuntimeGeomObj()
 
         this.importMaterials = function(jObj)
         {
+                if (!jObj || !jObj.materials)  return;
+
                 var nMaterials = jObj.nMaterials;
                 var matArray = jObj.materials;
                 for (var i=0;  i<nMaterials;  i++)
@@ -645,6 +647,37 @@ function RuntimeGeomObj()
 
         return [x, y, z];
     }
+        
+        this.MatrixIdentity = function(dimen)
+        {
+                var mat = [];
+
+                for (var i = 0; i<dimen*dimen; i++)  {
+                        mat.push(0);
+                }
+
+                var index = 0;
+                for (var j = 0; j<dimen; j++) {
+                        mat[index] = 1.0;
+                        index += dimen + 1;
+                }
+        
+                return mat;     
+        };
+
+        
+        this.MatrixRotationZ = function( angle )
+        {
+                var mat = this.MatrixIdentity(4);
+                //glmat4.rotateZ(mat, angle);
+                var sn = Math.sin(angle),
+                        cs = Math.cos(angle);
+                mat[0] = cs;    mat[4] = -sn;
+                mat[1] = sn;    mat[5] =  cs;
+
+                return mat;
+        };
+
 }
 
 ///////////////////////////////////////////////////////////////////////
@@ -844,12 +877,17 @@ function RuntimeOval()
                 // translate
                 var xCtr = 0.5*world.getViewportWidth() + this._xOffset,
                         yCtr = 0.5*world.getViewportHeight() + this._yOffset;
+                var mat = this.MatrixIdentity( 4 );
+                mat[0] = xScale;                                        mat[12] = xCtr;
+                                                mat[5] = yScale;        mat[13] = yCtr;
+                /*
                 var mat = [
                                                         [ xScale,     0.0,  0.0,  xCtr],
                                                         [    0.0,  yScale,  0.0,  yCtr],
                                                         [    0.0,     0.0,  1.0,   0.0],
                                                         [    0.0,     0.0,  0.0,   1.0]
                                                 ];
+                */
 
                 // get a bezier representation of the circle
                 var bezPts = this.circularArcToBezier( [0,0,0],  [1,0,0], 2.0*Math.PI );
@@ -1005,7 +1043,7 @@ function RuntimeOval()
         var  d = rad*cs + h;
 
         var rtnPts = [ this.vecAdd(dimen, pt, ctr) ];
-        var rotMat = Matrix.RotationZ( dAngle );
+        var rotMat = this.MatrixRotationZ( dAngle );
         for ( var i=0;  i<nSegs;  i++)
         {
             // get the next end point
@@ -1207,14 +1245,14 @@ function RuntimeRadialGradientMaterial()
 
         this.import = function( jObj )
         {
-                var color1      = jObj.color1,
-                        color2  = jObj.color2,
-                        color3  = jObj.color3,
-                        color4  = jObj.color4,
-                        colorStop1      = jObj.colorStop1,
-                        colorStop2      = jObj.colorStop2,
-                        colorStop3      = jObj.colorStop3,
-                        colorStop4      = jObj.colorStop4;
+                this._color1    = jObj.color1,
+                this._color2    = jObj.color2,
+                this._color3    = jObj.color3,
+                this._color4    = jObj.color4,
+                this._colorStop1        = jObj.colorStop1,
+                this._colorStop2        = jObj.colorStop2,
+                this._colorStop3        = jObj.colorStop3,
+                this._colorStop4        = jObj.colorStop4;
 
                 if (this._angle !== undefined)
                         this._angle = jObj.angle;
@@ -1394,10 +1432,10 @@ function RuntimeUberMaterial()
         {
                 if (jObj.materialProps)
                 {
-                        var ambientColor  = jObj.materialProps.ambientColor;     this.setProperty( "ambientColor", ambientColor );
-                        var diffuseColor  = jObj.materialProps.diffuseColor;     this.setProperty( "diffuseColor", diffuseColor );
-                        var specularColor = jObj.materialProps.specularColor;    this.setProperty( "specularColor", specularColor );
-                        var specularPower = jObj.materialProps.specularPower;    this.setProperty( "specularPower", specularPower );
+                        this._ambientColor  = jObj.materialProps.ambientColor;
+                        this._diffuseColor  = jObj.materialProps.diffuseColor;
+                        this._specularColor = jObj.materialProps.specularColor;
+                        this._specularPower = jObj.materialProps.specularPower;
                 }
 
                 var lightArray = jObj.lights;