Added isophotes Shader

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@6023 383ad7c9-94d9-4d36-a494-682f7c89f535

Shaders/Isophotes Shader/Fragment.glsl

+varying vec3 normal;
+varying vec4 viewingDir;
+
+uniform sampler2D texSamplerTMU0;
+
+void main()
+{      
+
+	vec3 viewingDirCut = vec3(viewingDir.x, viewingDir.y, viewingDir.z);
+	float angle = dot ( normal , viewingDirCut );
+
+	vec2 coord;
+	coord.s = angle/3.14;
+	coord.t = angle/3.14;
+
+	gl_FragColor = texture2D (texSamplerTMU0 , coord) ;
+
+}
+

Shaders/Isophotes Shader/Vertex.glsl

+varying vec3 normal;
+varying vec4 viewingDir;
+       
+void main()
+{       
+      /* first transform the normal into eye space and 
+      normalize the result */
+      normal = normalize(gl_NormalMatrix * gl_Normal);
+               
+      vec4 viewingDirBase = vec4( 0.0,0.0,-1.0,0.0 );
+      viewingDir = viewingDirBase;
+ 
+      gl_Position = ftransform();
+} 

Shaders/Isophotes Shader/shader.ini

+[FragmentShader]
+file=Fragment.glsl
+
+
+[Info]
+example=Isophotes.png
+name=Isophote Shader
+version=1.0
+
+
+[VertexShader]
+file=Vertex.glsl
+
+