diff --git a/dependencies/webgl-debug.js b/dependencies/webgl-debug.js
index 5f2a620b2..a7e445d40 100644
--- a/dependencies/webgl-debug.js
+++ b/dependencies/webgl-debug.js
@@ -1,6 +1,25 @@
-//Copyright (c) 2009 The Chromium Authors. All rights reserved.
-//Use of this source code is governed by a BSD-style license that can be
-//found in the LICENSE file.
+/*
+** Copyright (c) 2012 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
 
 // Various functions for helping debug WebGL apps.
 
@@ -17,84 +36,123 @@ var log = function(msg) {
 };
 
 /**
- * Which arguements are enums.
- * @type {!Object.<number, string>}
+ * Wrapped error logging function.
+ * @param {string} msg Message to log.
+ */
+var error = function(msg) {
+  if (window.console && window.console.error) {
+    window.console.error(msg);
+  } else {
+    log(msg);
+  }
+};
+
+
+/**
+ * Which arguments are enums based on the number of arguments to the function.
+ * So
+ *    'texImage2D': {
+ *       9: { 0:true, 2:true, 6:true, 7:true },
+ *       6: { 0:true, 2:true, 3:true, 4:true },
+ *    },
+ *
+ * means if there are 9 arguments then 6 and 7 are enums, if there are 6
+ * arguments 3 and 4 are enums
+ *
+ * @type {!Object.<number, !Object.<number, string>}
  */
 var glValidEnumContexts = {
-
   // Generic setters and getters
 
-  'enable': { 0:true },
-  'disable': { 0:true },
-  'getParameter': { 0:true },
+  'enable': {1: { 0:true }},
+  'disable': {1: { 0:true }},
+  'getParameter': {1: { 0:true }},
 
   // Rendering
 
-  'drawArrays': { 0:true },
-  'drawElements': { 0:true, 2:true },
+  'drawArrays': {3:{ 0:true }},
+  'drawElements': {4:{ 0:true, 2:true }},
 
   // Shaders
 
-  'createShader': { 0:true },
-  'getShaderParameter': { 1:true },
-  'getProgramParameter': { 1:true },
+  'createShader': {1: { 0:true }},
+  'getShaderParameter': {2: { 1:true }},
+  'getProgramParameter': {2: { 1:true }},
+  'getShaderPrecisionFormat': {2: { 0: true, 1:true }},
 
   // Vertex attributes
 
-  'getVertexAttrib': { 1:true },
-  'vertexAttribPointer': { 2:true },
+  'getVertexAttrib': {2: { 1:true }},
+  'vertexAttribPointer': {6: { 2:true }},
 
   // Textures
 
-  'bindTexture': { 0:true },
-  'activeTexture': { 0:true },
-  'getTexParameter': { 0:true, 1:true },
-  'texParameterf': { 0:true, 1:true },
-  'texParameteri': { 0:true, 1:true, 2:true },
-  'texImage2D': { 0:true, 2:true, 6:true, 7:true },
-  'texSubImage2D': { 0:true, 6:true, 7:true },
-  'copyTexImage2D': { 0:true, 2:true },
-  'copyTexSubImage2D': { 0:true },
-  'generateMipmap': { 0:true },
+  'bindTexture': {2: { 0:true }},
+  'activeTexture': {1: { 0:true }},
+  'getTexParameter': {2: { 0:true, 1:true }},
+  'texParameterf': {3: { 0:true, 1:true }},
+  'texParameteri': {3: { 0:true, 1:true, 2:true }},
+  'texImage2D': {
+     9: { 0:true, 2:true, 6:true, 7:true },
+     6: { 0:true, 2:true, 3:true, 4:true }
+  },
+  'texSubImage2D': {
+    9: { 0:true, 6:true, 7:true },
+    7: { 0:true, 4:true, 5:true }
+  },
+  'copyTexImage2D': {8: { 0:true, 2:true }},
+  'copyTexSubImage2D': {8: { 0:true }},
+  'generateMipmap': {1: { 0:true }},
+  'compressedTexImage2D': {7: { 0: true, 2:true }},
+  'compressedTexSubImage2D': {8: { 0: true, 6:true }},
 
   // Buffer objects
 
-  'bindBuffer': { 0:true },
-  'bufferData': { 0:true, 2:true },
-  'bufferSubData': { 0:true },
-  'getBufferParameter': { 0:true, 1:true },
+  'bindBuffer': {2: { 0:true }},
+  'bufferData': {3: { 0:true, 2:true }},
+  'bufferSubData': {3: { 0:true }},
+  'getBufferParameter': {2: { 0:true, 1:true }},
 
   // Renderbuffers and framebuffers
 
-  'pixelStorei': { 0:true, 1:true },
-  'readPixels': { 4:true, 5:true },
-  'bindRenderbuffer': { 0:true },
-  'bindFramebuffer': { 0:true },
-  'checkFramebufferStatus': { 0:true },
-  'framebufferRenderbuffer': { 0:true, 1:true, 2:true },
-  'framebufferTexture2D': { 0:true, 1:true, 2:true },
-  'getFramebufferAttachmentParameter': { 0:true, 1:true, 2:true },
-  'getRenderbufferParameter': { 0:true, 1:true },
-  'renderbufferStorage': { 0:true, 1:true },
+  'pixelStorei': {2: { 0:true, 1:true }},
+  'readPixels': {7: { 4:true, 5:true }},
+  'bindRenderbuffer': {2: { 0:true }},
+  'bindFramebuffer': {2: { 0:true }},
+  'checkFramebufferStatus': {1: { 0:true }},
+  'framebufferRenderbuffer': {4: { 0:true, 1:true, 2:true }},
+  'framebufferTexture2D': {5: { 0:true, 1:true, 2:true }},
+  'getFramebufferAttachmentParameter': {3: { 0:true, 1:true, 2:true }},
+  'getRenderbufferParameter': {2: { 0:true, 1:true }},
+  'renderbufferStorage': {4: { 0:true, 1:true }},
 
   // Frame buffer operations (clear, blend, depth test, stencil)
 
-  'clear': { 0:true },
-  'depthFunc': { 0:true },
-  'blendFunc': { 0:true, 1:true },
-  'blendFuncSeparate': { 0:true, 1:true, 2:true, 3:true },
-  'blendEquation': { 0:true },
-  'blendEquationSeparate': { 0:true, 1:true },
-  'stencilFunc': { 0:true },
-  'stencilFuncSeparate': { 0:true, 1:true },
-  'stencilMaskSeparate': { 0:true },
-  'stencilOp': { 0:true, 1:true, 2:true },
-  'stencilOpSeparate': { 0:true, 1:true, 2:true, 3:true },
+  'clear': {1: { 0: { 'enumBitwiseOr': ['COLOR_BUFFER_BIT', 'DEPTH_BUFFER_BIT', 'STENCIL_BUFFER_BIT'] }}},
+  'depthFunc': {1: { 0:true }},
+  'blendFunc': {2: { 0:true, 1:true }},
+  'blendFuncSeparate': {4: { 0:true, 1:true, 2:true, 3:true }},
+  'blendEquation': {1: { 0:true }},
+  'blendEquationSeparate': {2: { 0:true, 1:true }},
+  'stencilFunc': {3: { 0:true }},
+  'stencilFuncSeparate': {4: { 0:true, 1:true }},
+  'stencilMaskSeparate': {2: { 0:true }},
+  'stencilOp': {3: { 0:true, 1:true, 2:true }},
+  'stencilOpSeparate': {4: { 0:true, 1:true, 2:true, 3:true }},
 
   // Culling
 
-  'cullFace': { 0:true },
-  'frontFace': { 0:true },
+  'cullFace': {1: { 0:true }},
+  'frontFace': {1: { 0:true }},
+
+  // ANGLE_instanced_arrays extension
+
+  'drawArraysInstancedANGLE': {4: { 0:true }},
+  'drawElementsInstancedANGLE': {5: { 0:true, 2:true }},
+
+  // EXT_blend_minmax extension
+
+  'blendEquationEXT': {1: { 0:true }}
 };
 
 /**
@@ -103,6 +161,12 @@ var glValidEnumContexts = {
  */
 var glEnums = null;
 
+/**
+ * Map of names to numbers.
+ * @type {Object}
+ */
+var enumStringToValue = null;
+
 /**
  * Initializes this module. Safe to call more than once.
  * @param {!WebGLRenderingContext} ctx A WebGL context. If
@@ -112,9 +176,11 @@ var glEnums = null;
 function init(ctx) {
   if (glEnums == null) {
     glEnums = { };
+    enumStringToValue = { };
     for (var propertyName in ctx) {
       if (typeof ctx[propertyName] == 'number') {
         glEnums[ctx[propertyName]] = propertyName;
+        enumStringToValue[propertyName] = ctx[propertyName];
       }
     }
   }
@@ -151,23 +217,46 @@ function mightBeEnum(value) {
 function glEnumToString(value) {
   checkInit();
   var name = glEnums[value];
-  return (name !== undefined) ? name :
-      ("*UNKNOWN WebGL ENUM (0x" + value.toString(16) + ")");
+  return (name !== undefined) ? ("gl." + name) :
+      ("/*UNKNOWN WebGL ENUM*/ 0x" + value.toString(16) + "");
 }
 
 /**
  * Returns the string version of a WebGL argument.
  * Attempts to convert enum arguments to strings.
  * @param {string} functionName the name of the WebGL function.
+ * @param {number} numArgs the number of arguments passed to the function.
  * @param {number} argumentIndx the index of the argument.
  * @param {*} value The value of the argument.
  * @return {string} The value as a string.
  */
-function glFunctionArgToString(functionName, argumentIndex, value) {
+function glFunctionArgToString(functionName, numArgs, argumentIndex, value) {
   var funcInfo = glValidEnumContexts[functionName];
   if (funcInfo !== undefined) {
-    if (funcInfo[argumentIndex]) {
-      return glEnumToString(value);
+    var funcInfo = funcInfo[numArgs];
+    if (funcInfo !== undefined) {
+      if (funcInfo[argumentIndex]) {
+        if (typeof funcInfo[argumentIndex] === 'object' &&
+            funcInfo[argumentIndex]['enumBitwiseOr'] !== undefined) {
+          var enums = funcInfo[argumentIndex]['enumBitwiseOr'];
+          var orResult = 0;
+          var orEnums = [];
+          for (var i = 0; i < enums.length; ++i) {
+            var enumValue = enumStringToValue[enums[i]];
+            if ((value & enumValue) !== 0) {
+              orResult |= enumValue;
+              orEnums.push(glEnumToString(enumValue));
+            }
+          }
+          if (orResult === value) {
+            return orEnums.join(' | ');
+          } else {
+            return glEnumToString(value);
+          }
+        } else {
+          return glEnumToString(value);
+        }
+      }
     }
   }
   if (value === null) {
@@ -179,6 +268,26 @@ function glFunctionArgToString(functionName, argumentIndex, value) {
   }
 }
 
+/**
+ * Converts the arguments of a WebGL function to a string.
+ * Attempts to convert enum arguments to strings.
+ *
+ * @param {string} functionName the name of the WebGL function.
+ * @param {number} args The arguments.
+ * @return {string} The arguments as a string.
+ */
+function glFunctionArgsToString(functionName, args) {
+  // apparently we can't do args.join(",");
+  var argStr = "";
+  var numArgs = args.length;
+  for (var ii = 0; ii < numArgs; ++ii) {
+    argStr += ((ii == 0) ? '' : ', ') +
+        glFunctionArgToString(functionName, numArgs, ii, args[ii]);
+  }
+  return argStr;
+};
+
+
 function makePropertyWrapper(wrapper, original, propertyName) {
   //log("wrap prop: " + propertyName);
   wrapper.__defineGetter__(propertyName, function() {
@@ -214,18 +323,25 @@ function makeFunctionWrapper(original, functionName) {
  *        The function to call when gl.getError returns an
  *        error. If not specified the default function calls
  *        console.log with a message.
+ * @param {!function(funcName, args): void} opt_onFunc The
+ *        function to call when each webgl function is called.
+ *        You can use this to log all calls for example.
+ * @param {!WebGLRenderingContext} opt_err_ctx The webgl context
+ *        to call getError on if different than ctx.
  */
-function makeDebugContext(ctx, opt_onErrorFunc) {
+function makeDebugContext(ctx, opt_onErrorFunc, opt_onFunc, opt_err_ctx) {
+  opt_err_ctx = opt_err_ctx || ctx;
   init(ctx);
   opt_onErrorFunc = opt_onErrorFunc || function(err, functionName, args) {
         // apparently we can't do args.join(",");
         var argStr = "";
-        for (var ii = 0; ii < args.length; ++ii) {
+        var numArgs = args.length;
+        for (var ii = 0; ii < numArgs; ++ii) {
           argStr += ((ii == 0) ? '' : ', ') +
-              glFunctionArgToString(functionName, ii, args[ii]);
+              glFunctionArgToString(functionName, numArgs, ii, args[ii]);
         }
-        log("WebGL error "+ glEnumToString(err) + " in "+ functionName +
-            "(" + argStr + ")");
+        error("WebGL error "+ glEnumToString(err) + " in "+ functionName +
+              "(" + argStr + ")");
       };
 
   // Holds booleans for each GL error so after we get the error ourselves
@@ -235,8 +351,11 @@ function makeDebugContext(ctx, opt_onErrorFunc) {
   // Makes a function that calls a WebGL function and then calls getError.
   function makeErrorWrapper(ctx, functionName) {
     return function() {
+      if (opt_onFunc) {
+        opt_onFunc(functionName, arguments);
+      }
       var result = ctx[functionName].apply(ctx, arguments);
-      var err = ctx.getError();
+      var err = opt_err_ctx.getError();
       if (err != 0) {
         glErrorShadow[err] = true;
         opt_onErrorFunc(err, functionName, arguments);
@@ -250,18 +369,28 @@ function makeDebugContext(ctx, opt_onErrorFunc) {
   var wrapper = {};
   for (var propertyName in ctx) {
     if (typeof ctx[propertyName] == 'function') {
-       wrapper[propertyName] = makeErrorWrapper(ctx, propertyName);
-     } else {
-       makePropertyWrapper(wrapper, ctx, propertyName);
-     }
+      if (propertyName != 'getExtension') {
+        wrapper[propertyName] = makeErrorWrapper(ctx, propertyName);
+      } else {
+        var wrapped = makeErrorWrapper(ctx, propertyName);
+        wrapper[propertyName] = function () {
+          var result = wrapped.apply(ctx, arguments);
+          return makeDebugContext(result, opt_onErrorFunc, opt_onFunc, opt_err_ctx);
+        };
+      }
+    } else {
+      makePropertyWrapper(wrapper, ctx, propertyName);
+    }
   }
 
   // Override the getError function with one that returns our saved results.
   wrapper.getError = function() {
     for (var err in glErrorShadow) {
-      if (glErrorShadow[err]) {
-        glErrorShadow[err] = false;
-        return err;
+      if (glErrorShadow.hasOwnProperty(err)) {
+        if (glErrorShadow[err]) {
+          glErrorShadow[err] = false;
+          return err;
+        }
       }
     }
     return ctx.NO_ERROR;
@@ -699,10 +828,9 @@ function makeLostContextSimulatingCanvas(canvas) {
 }
 
 return {
-    /**
-     * Initializes this module. Safe to call more than once.
-     * @param {!WebGLRenderingContext} ctx A WebGL context. If
-    }
+  /**
+   * Initializes this module. Safe to call more than once.
+   * @param {!WebGLRenderingContext} ctx A WebGL context. If
    *    you have more than one context it doesn't matter which one
    *    you pass in, it is only used to pull out constants.
    */
@@ -733,17 +861,28 @@ return {
    *
    * Example:
    *   WebGLDebugUtil.init(ctx);
-   *   var str = WebGLDebugUtil.glFunctionArgToString('bindTexture', 0, gl.TEXTURE_2D);
+   *   var str = WebGLDebugUtil.glFunctionArgToString('bindTexture', 2, 0, gl.TEXTURE_2D);
    *
    * would return 'TEXTURE_2D'
    *
    * @param {string} functionName the name of the WebGL function.
+   * @param {number} numArgs The number of arguments
    * @param {number} argumentIndx the index of the argument.
    * @param {*} value The value of the argument.
    * @return {string} The value as a string.
    */
   'glFunctionArgToString': glFunctionArgToString,
 
+  /**
+   * Converts the arguments of a WebGL function to a string.
+   * Attempts to convert enum arguments to strings.
+   *
+   * @param {string} functionName the name of the WebGL function.
+   * @param {number} args The arguments.
+   * @return {string} The arguments as a string.
+   */
+  'glFunctionArgsToString': glFunctionArgsToString,
+
   /**
    * Given a WebGL context returns a wrapped context that calls
    * gl.getError after every command and calls a function if the
@@ -753,17 +892,20 @@ return {
    * an exception thrown on any GL error you could do this
    *
    *    function throwOnGLError(err, funcName, args) {
-   *      throw WebGLDebugUtils.glEnumToString(err) + " was caused by call to" +
-   *            funcName;
+   *      throw WebGLDebugUtils.glEnumToString(err) +
+   *            " was caused by call to " + funcName;
    *    };
    *
    *    ctx = WebGLDebugUtils.makeDebugContext(
-   *        canvas.getContext ("webgl"), throwOnGLError);
+   *        canvas.getContext("webgl"), throwOnGLError);
    *
    * @param {!WebGLRenderingContext} ctx The webgl context to wrap.
    * @param {!function(err, funcName, args): void} opt_onErrorFunc The function
    *     to call when gl.getError returns an error. If not specified the default
    *     function calls console.log with a message.
+   * @param {!function(funcName, args): void} opt_onFunc The
+   *     function to call when each webgl function is called. You
+   *     can use this to log all calls for example.
    */
   'makeDebugContext': makeDebugContext,