add highlight rules for glsl

demo/kitchen-sink/demo.js

@@ -96,6 +96,7 @@ var modesByName = {
     csharp:     ["C#"           , "cs"],
     css:        ["CSS"          , "css"],
     diff:       ["Diff"         , "diff|patch"],
+    glsl:       ["Glsl"         , "glsl|frag|vert"],
     golang:     ["Go"           , "go"],
     groovy:     ["Groovy"       , "groovy"],
     haxe:       ["haXe"         , "hx"],
@@ -177,6 +178,7 @@ var docs = {
     "docs/csharp.cs": "C#",
     "docs/css.css": "CSS",
     "docs/diff.diff": "Diff",
+    "docs/glsl.glsl": "Glsl",
     "docs/golang.go": "Go",
     "docs/groovy.groovy": "Groovy",
     "docs/Haxe.hx": "haXe",

demo/kitchen-sink/docs/glsl.glsl

@@ -0,0 +1,20 @@
+uniform float amplitude;
+attribute float displacement;
+varying vec3 vNormal;
+
+void main() {
+
+    vNormal = normal;
+  
+    // multiply our displacement by the
+    // amplitude. The amp will get animated
+    // so we'll have animated displacement
+    vec3 newPosition = position + 
+                       normal * 
+                       vec3(displacement *
+                            amplitude);
+
+    gl_Position = projectionMatrix *
+                  modelViewMatrix *
+                  vec4(newPosition,1.0);
+}