Removed, and documented removal of, texture swizzles per decision at …

…recent F2F.

specs/latest/2.0/index.html

@@ -27,7 +27,7 @@
     <!--end-logo-->
 
     <h1>WebGL 2 Specification</h1>
-    <h2 class="no-toc">Editor's Draft 26 January 2015</h2>
+    <h2 class="no-toc">Editor's Draft 06 February 2015</h2>
     <dl>
         <dt>This version:
             <dd>
@@ -650,10 +650,6 @@ <h3><a name="WEBGLRENDERINGCONTEXT">The WebGL context</a></h3>
   const GLenum ANY_SAMPLES_PASSED_CONSERVATIVE               = 0x8D6A;
   const GLenum SAMPLER_BINDING                               = 0x8919;
   const GLenum RGB10_A2UI                                    = 0x906F;
-  const GLenum TEXTURE_SWIZZLE_R                             = 0x8E42;
-  const GLenum TEXTURE_SWIZZLE_G                             = 0x8E43;
-  const GLenum TEXTURE_SWIZZLE_B                             = 0x8E44;
-  const GLenum TEXTURE_SWIZZLE_A                             = 0x8E45;
   const GLenum GREEN                                         = 0x1904;
   const GLenum BLUE                                          = 0x1905;
   const GLenum INT_2_10_10_10_REV                            = 0x8D9F;
@@ -1154,10 +1150,6 @@ <h4>Texture objects</h4>
               <tr><td>TEXTURE_MAX_LOD</td><td>GLfloat</td></tr>
               <tr><td>TEXTURE_MIN_FILTER</td><td>GLenum</td></tr>
               <tr><td>TEXTURE_MIN_LOD</td><td>GLfloat</td></tr>
-              <tr><td>TEXTURE_SWIZZLE_A</td><td>GLenum</td></tr>
-              <tr><td>TEXTURE_SWIZZLE_B</td><td>GLenum</td></tr>
-              <tr><td>TEXTURE_SWIZZLE_G</td><td>GLenum</td></tr>
-              <tr><td>TEXTURE_SWIZZLE_R</td><td>GLenum</td></tr>
               <tr><td>TEXTURE_WRAP_R</td><td>GLenum</td></tr>
               <tr><td>TEXTURE_WRAP_S</td><td>GLenum</td></tr>
               <tr><td>TEXTURE_WRAP_T</td><td>GLenum</td></tr>
@@ -2198,6 +2190,10 @@ <h4>Primitive Restart is Always Enabled</h4>
 
     <h3>New Features Supported in the WebGL 2 API</h3>
 
+    <div class="note editor">
+        Needs many updates for OpenGL ES 3.0 features
+    </div>
+
     <ul>
       <li>ETC2 and EAC Compressed texture formats <span class="gl-spec">(<a href="http://www.khronos.org/registry/gles/specs/3.0/es_spec_3.0.3.pdf#nameddest=appendix-c">OpenGL ES 3.0.3 Appendix C</a>)</span></li>
       <li>Pixel buffer objects <span class="gl-spec">(<a href="http://www.khronos.org/registry/gles/specs/3.0/es_spec_3.0.3.pdf#nameddest=section-3.7.1">OpenGL ES 3.0.3 &sect;3.7.1</a> and <a href="http://www.khronos.org/registry/gles/specs/3.0/es_spec_3.0.3.pdf#nameddest=section-4.3">OpenGL ES 3.0.3 &sect;4.3</a>)</span></li>
@@ -2479,6 +2475,20 @@ <h3><a name="NO_PRIMITIVE_RESTART_FIXED_INDEX">PRIMITIVE_RESTART_FIXED_INDEX is
         behavior is not desired.
     </div>
 
+    <h3>No texture swizzles</h3>
+
+    <p>
+        OpenGL ES 3.0 introduces new state on texture objects allowing a four-channel swizzle
+        operation to be specified against the texture. The swizzle is applied to every texture
+        lookup performed within any shader referencing that texture.
+    </p>
+    <p>
+        On some WebGL implementations, texture swizzles can not be implemented in a performant
+        manner, meaning that applications relying on this functionality will run significantly more
+        slowly on those implementations. For this reason, texture swizzles are not supported in
+        WebGL 2.0.
+    </p>
+
 <!-- ======================================================================================================= -->
 
     <h2>References</h2>