Stefan Röttger

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The GLSL shader language definition is available online at OpenGL.org:

The glVertex frame work provides easy access to GLSL as follows:

To compile a GLSL shader:

GLuint id = lglCompileGLSLProgram("#version 120\n ...");

To use a GLSL shader:

lglUseProgram(id);

Given a uniform float “v” in the GLSL shader, we pass a value to the variable in shader as follows:

lglUniformf("v", ...);

Given a uniform vec4 “v” in the GLSL shader, we pass a vector value to the variable in the shader as follows:

lglUniformfv("v", vec4(...));

More details and examples are available in the glVertex documentation.

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