Initial import of KREngine

--HG--
extra : convert_revision : svn%3A7752d6cf-9f14-4ad2-affc-04f1e67b81a5/trunk%404

objview/Classes/krengine/Shaders/ShadowShader.fsh

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+// -- Per Pixel lighting, test 3 --
+uniform sampler2D 		diffuseTexture, specularTexture, normalTexture;
+varying mediump vec2	texCoord;
+varying mediump vec3    lightVec;
+varying mediump vec3    halfVec;
+uniform lowp vec3       material_ambient, material_diffuse, material_specular;
+
+void main()
+{
+    // compute diffuse lighting
+    mediump vec4 diffuseMaterial = texture2D(diffuseTexture, texCoord);
+    
+    /*
+     // lookup normal from normal map, move from [0,1] to  [-1, 1] range, normalize
+     mediump vec3 normal = normalize(2.0 * texture2D(normalTexture,texCoord).rgb - 1.0);
+     
+     mediump float lamberFactor= max (dot (lightVec, normal), 0.0);
+     
+     // Add ambient light and alpha component from diffuse texture map
+     gl_FragColor =	vec4(material_ambient, diffuseMaterial.w);
+     
+     // compute specular lighting
+     mediump vec3 specularLight = vec3(texture2D(specularTexture, texCoord)); // Specular value comes from a texture 
+     mediump float shininess = pow (max (dot (halfVec, normal), 0.0), 2.0);
+     
+     // Add diffuse light
+     gl_FragColor += vec4(vec3(diffuseMaterial) * material_diffuse * lamberFactor, 0.0);
+     
+     // Add specular light
+     gl_FragColor += vec4(material_specular * specularLight * shininess, 0.0);
+     */
+    
+    //gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);
+    gl_FragColor = diffuseMaterial;
+}