diff --git a/build/Three.js b/build/Three.js
index 3a74165e..876a415a 100644
--- a/build/Three.js
+++ b/build/Three.js
@@ -638,7 +638,7 @@ e.init_from),e.wrapS=d.texOpts.wrapU?THREE.RepeatWrapping:THREE.ClampToEdgeWrapp
 new THREE.MeshLambertMaterial(a)};y.prototype.parse=function(a){for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "init_from":this.init_from=c.textContent;break;case "format":this.format=c.textContent;break;default:console.log("unhandled Surface prop: "+c.nodeName)}}return this};K.prototype.parse=function(a){for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "source":this.source=c.textContent;break;
 case "minfilter":this.minfilter=c.textContent;break;case "magfilter":this.magfilter=c.textContent;break;case "mipfilter":this.mipfilter=c.textContent;break;case "wrap_s":this.wrap_s=c.textContent;break;case "wrap_t":this.wrap_t=c.textContent;break;default:console.log("unhandled Sampler2D prop: "+c.nodeName)}}return this};Z.prototype.create=function(){if(this.shader==null)return null};Z.prototype.parse=function(a){this.id=a.getAttribute("id");this.name=a.getAttribute("name");this.shader=null;for(var b=
 0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "profile_COMMON":this.parseTechnique(this.parseProfileCOMMON(c))}}return this};Z.prototype.parseNewparam=function(a){for(var b=a.getAttribute("sid"),c=0;c<a.childNodes.length;c++){var d=a.childNodes[c];if(d.nodeType==1)switch(d.nodeName){case "surface":this.surface=(new y(this)).parse(d);this.surface.sid=b;break;case "sampler2D":this.sampler=(new K(this)).parse(d);this.sampler.sid=b;break;case "extra":break;
-default:console.log(d.nodeName)}}};Z.prototype.parseProfileCOMMON=function(a){for(var b,c=0;c<a.childNodes.length;c++){var d=a.childNodes[c];if(d.nodeType==1)switch(d.nodeName){case "profile_COMMON":this.parseProfileCOMMON(d);break;case "technique":b=d;break;case "newparam":this.parseNewparam(d);break;case "extra":break;default:console.log(d.nodeName)}}return b};Z.prototype.parseTechnique=function(a){for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "lambert":case "blinn":case "phong":this.shader=
+default:console.log(d.nodeName)}}};Z.prototype.parseProfileCOMMON=function(a){for(var b,c=0;c<a.childNodes.length;c++){var d=a.childNodes[c];if(d.nodeType==1)switch(d.nodeName){case "profile_COMMON":this.parseProfileCOMMON(d);break;case "technique":b=d;break;case "newparam":this.parseNewparam(d);break;case "extra":break;default:console.log(d.nodeName)}}return b};Z.prototype.parseTechnique=function(a){for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "constant":case "lambert":case "blinn":case "phong":this.shader=
 (new G(c.nodeName,this)).parse(c)}}};Q.prototype.parse=function(a){this.url=a.getAttribute("url").replace(/^#/,"");return this};X.prototype.parse=function(a){this.id=a.getAttribute("id");this.name=a.getAttribute("name");this.source={};for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "source":c=(new E).parse(c);this.source[c.id]=c;break;case "sampler":this.sampler.push((new R(this)).parse(c));break;case "channel":this.channel.push((new T(this)).parse(c))}}return this};
 T.prototype.parse=function(a){this.source=a.getAttribute("source").replace(/^#/,"");this.target=a.getAttribute("target");var b=this.target.split("/");b.shift();var a=b.shift(),c=a.indexOf(".")>=0,d=a.indexOf("(")>=0;if(c)b=a.split("."),this.sid=b.shift(),this.member=b.shift();else if(d){b=a.split("(");this.sid=b.shift();for(var e=0;e<b.length;e++)b[e]=parseInt(b[e].replace(/\)/,""));this.arrIndices=b}else this.sid=a;this.fullSid=a;this.dotSyntax=c;this.arrSyntax=d;return this};R.prototype.parse=function(a){this.id=
 a.getAttribute("id");this.inputs=[];for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "input":this.inputs.push((new z).parse(c))}}return this};R.prototype.create=function(){for(var a=0;a<this.inputs.length;a++){var b=this.inputs[a],c=this.animation.source[b.source];switch(b.semantic){case "INPUT":this.input=c.read();break;case "OUTPUT":this.output=c.read();this.strideOut=c.accessor.stride;break;case "INTERPOLATION":this.interpolation=c.read();break;
diff --git a/build/custom/ThreeExtras.js b/build/custom/ThreeExtras.js
index 14a433a0..0dacb8e3 100644
--- a/build/custom/ThreeExtras.js
+++ b/build/custom/ThreeExtras.js
@@ -292,7 +292,7 @@ if(e)e=THREE.ImageUtils.loadTexture(ja+e.init_from),e.wrapS=d.texOpts.wrapU?THRE
 this[c],b=!0}a.shading=ka;return this.material=new THREE.MeshLambertMaterial(a)};v.prototype.parse=function(a){for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "init_from":this.init_from=c.textContent;break;case "format":this.format=c.textContent;break;default:console.log("unhandled Surface prop: "+c.nodeName)}}return this};E.prototype.parse=function(a){for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "source":this.source=
 c.textContent;break;case "minfilter":this.minfilter=c.textContent;break;case "magfilter":this.magfilter=c.textContent;break;case "mipfilter":this.mipfilter=c.textContent;break;case "wrap_s":this.wrap_s=c.textContent;break;case "wrap_t":this.wrap_t=c.textContent;break;default:console.log("unhandled Sampler2D prop: "+c.nodeName)}}return this};F.prototype.create=function(){if(this.shader==null)return null};F.prototype.parse=function(a){this.id=a.getAttribute("id");this.name=a.getAttribute("name");this.shader=
 null;for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "profile_COMMON":this.parseTechnique(this.parseProfileCOMMON(c))}}return this};F.prototype.parseNewparam=function(a){for(var b=a.getAttribute("sid"),c=0;c<a.childNodes.length;c++){var d=a.childNodes[c];if(d.nodeType==1)switch(d.nodeName){case "surface":this.surface=(new v(this)).parse(d);this.surface.sid=b;break;case "sampler2D":this.sampler=(new E(this)).parse(d);this.sampler.sid=b;break;case "extra":break;
-default:console.log(d.nodeName)}}};F.prototype.parseProfileCOMMON=function(a){for(var b,c=0;c<a.childNodes.length;c++){var d=a.childNodes[c];if(d.nodeType==1)switch(d.nodeName){case "profile_COMMON":this.parseProfileCOMMON(d);break;case "technique":b=d;break;case "newparam":this.parseNewparam(d);break;case "extra":break;default:console.log(d.nodeName)}}return b};F.prototype.parseTechnique=function(a){for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "lambert":case "blinn":case "phong":this.shader=
+default:console.log(d.nodeName)}}};F.prototype.parseProfileCOMMON=function(a){for(var b,c=0;c<a.childNodes.length;c++){var d=a.childNodes[c];if(d.nodeType==1)switch(d.nodeName){case "profile_COMMON":this.parseProfileCOMMON(d);break;case "technique":b=d;break;case "newparam":this.parseNewparam(d);break;case "extra":break;default:console.log(d.nodeName)}}return b};F.prototype.parseTechnique=function(a){for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "constant":case "lambert":case "blinn":case "phong":this.shader=
 (new D(c.nodeName,this)).parse(c)}}};C.prototype.parse=function(a){this.url=a.getAttribute("url").replace(/^#/,"");return this};K.prototype.parse=function(a){this.id=a.getAttribute("id");this.name=a.getAttribute("name");this.source={};for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "source":c=(new y).parse(c);this.source[c.id]=c;break;case "sampler":this.sampler.push((new J(this)).parse(c));break;case "channel":this.channel.push((new G(this)).parse(c))}}return this};
 G.prototype.parse=function(a){this.source=a.getAttribute("source").replace(/^#/,"");this.target=a.getAttribute("target");var b=this.target.split("/");b.shift();var a=b.shift(),c=a.indexOf(".")>=0,d=a.indexOf("(")>=0;if(c)b=a.split("."),this.sid=b.shift(),this.member=b.shift();else if(d){b=a.split("(");this.sid=b.shift();for(var e=0;e<b.length;e++)b[e]=parseInt(b[e].replace(/\)/,""));this.arrIndices=b}else this.sid=a;this.fullSid=a;this.dotSyntax=c;this.arrSyntax=d;return this};J.prototype.parse=function(a){this.id=
 a.getAttribute("id");this.inputs=[];for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==1)switch(c.nodeName){case "input":this.inputs.push((new u).parse(c))}}return this};J.prototype.create=function(){for(var a=0;a<this.inputs.length;a++){var b=this.inputs[a],c=this.animation.source[b.source];switch(b.semantic){case "INPUT":this.input=c.read();break;case "OUTPUT":this.output=c.read();this.strideOut=c.accessor.stride;break;case "INTERPOLATION":this.interpolation=c.read();break;
diff --git a/src/extras/loaders/ColladaLoader.js b/src/extras/loaders/ColladaLoader.js
index da0baf5a..5995e7c7 100644
--- a/src/extras/loaders/ColladaLoader.js
+++ b/src/extras/loaders/ColladaLoader.js
@@ -759,7 +759,7 @@ THREE.ColladaLoader = function () {
 
 					material = new THREE.MeshFaceMaterial();
 					geom.materials = used_materials_array;
-					
+
 					for ( j = 0; j < geom.faces.length; j ++ ) {
 
 						var face = geom.faces[ j ];
@@ -3207,6 +3207,7 @@ THREE.ColladaLoader = function () {
 
 			switch ( child.nodeName ) {
 
+				case 'constant':
 				case 'lambert':
 				case 'blinn':
 				case 'phong':