2 files changed, 80 insertions, 3 deletions

diff --git a/js/document/html-document.js b/js/document/html-document.js
index 051490f5..f4ec3184 100755
--- a/js/document/html-document.js
+++ b/js/document/html-document.js
@@ -207,9 +207,17 @@ exports.HTMLDocument = Montage.create(TextDocument, {
                 },
         set: function(value) {
                         var elt = this.documentRoot;
-                        if (elt) {
+                        if (elt)
+                        {
                                 var nWorlds= value.length;
-                                for (var i=0;  i<nWorlds;  i++) {
+                                for (var i=0;  i<nWorlds;  i++)
+                                {
+                                        /*
+                                        // Use this code to test the runtime version of WebGL
+                                        var cdm = new CanvasDataManager();
+                                        cdm.loadGLData(elt,  value,  null );
+                                        */
+
                                         var importStr = value[i];
                                         var startIndex = importStr.indexOf( "id: " );
                                         if (startIndex >= 0) {
diff --git a/js/helper-classes/3D/vec-utils.js b/js/helper-classes/3D/vec-utils.js
index 3db95ab7..e6db4a8d 100755
--- a/js/helper-classes/3D/vec-utils.js
+++ b/js/helper-classes/3D/vec-utils.js
@@ -191,5 +191,74 @@ var VecUtils = exports.VecUtils = Object.create(Object.prototype,
 
             return vec;
         }
-    }
+    },
+
+        matI :
+        {
+                value: function(dimen)
+                {
+                        var mat = [];
+                        for (var i=0;  i<dimen*dimen;  i++)  mat.push(0);
+
+                        var index = 0;
+                        for (var i=0;  i<dimen;  i++)
+                        {
+                                mat[index] = 1.0;
+                                index += dimen + 1;
+                        }
+        
+                        return mat;     
+                }
+        },
+
+        matTranslation:
+        {
+                value: function (vec)
+                {
+                        var mat = Matrix.I(4);
+                        glmat4.translate(mat, vec);
+                        return mat;
+                }
+        },
+
+        matRotationX:
+        {
+                value: function( angle )
+                {
+                        var mat = Matrix.I(4);
+                        glmat4.rotateX(mat, angle);
+                        return mat;
+                }
+        },
+
+        matRotationY:
+        {
+                value: function( angle )
+                {
+                        var mat = Matrix.I(4);
+                        glmat4.rotateY(mat, angle);
+                        return mat;
+                }
+        },
+
+        matRotationZ:
+        {
+                value: function( angle )
+                {
+                        var mat = Matrix.I(4);
+                        glmat4.rotateZ(mat, angle);
+                        return mat;
+                }
+        },
+
+        matRotation:
+        {
+                value: function(angle, axis)
+                {
+                        var mat = Matrix.I(4);
+                        glmat4.rotate(mat, angle, axis);
+                        return mat;
+                }
+        },
+
 });
\ No newline at end of file