Let’s suppose you just found this cool GLSL program somewhere on the Net:

Vertex shader:

#version 120
void main()
{
  gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}

Pixel shader:

#version 120
void main()
{
  gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
}

Now, let’s suppose you want to test it with a mesh torus. The first thing to do is to create a XML node for the GLSL program in the main XML file.

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