Add ToT WebGL conformance tests : part 9

conformance/ogles/GL2Tests/get_active_attribute/brick_mat4.vert

+
+/*
+** 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.
+*/
+
+
+attribute vec4 gtf_Vertex;
+attribute vec3 gtf_Normal;
+attribute mat4 myAttrib4m;
+
+uniform mat3 gtf_NormalMatrix;
+varying float lightIntensity;
+varying vec3  Position;
+uniform vec3  LightPosition;
+
+uniform mat4 gtf_ModelViewMatrix;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+
+const float specularContribution = 0.7;
+const float diffuseContribution  = (1.0 - specularContribution);
+
+void main(void) {
+    vec4 pos        = gtf_ModelViewMatrix * gtf_Vertex;
+    Position        = vec3(gtf_Vertex);
+    vec3 tnorm      = normalize(gtf_NormalMatrix * gtf_Normal);
+    vec3 lightVec   = normalize(LightPosition - vec3(pos));
+    vec3 reflectVec = reflect(lightVec, tnorm);
+    vec3 viewVec    = normalize(vec3(pos));
+
+        float f = myAttrib4m[0][0];
+
+        float spec = clamp(dot(reflectVec, viewVec), f, 1.0);
+        //float spec = clamp(dot(reflectVec, viewVec), myAttribute1, myAttribute2);
+    spec = spec * spec;
+    spec = spec * spec;
+    spec = spec * spec;
+    spec = spec * spec;
+
+    lightIntensity = diffuseContribution * dot(lightVec, tnorm) +
+                     specularContribution * spec;
+    
+    gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}