Shader/Defined Uniforms

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Revision as of 01:50, 26 July 2013 by Alfonse (talk | contribs) (fragment shader uniforms.)

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Fragment Shaders define the following uniforms.

struct gl_DepthRangeParameters
    float near;
    float far;
    float diff;
uniform gl_DepthRangeParameters gl_DepthRange;

This struct provides access to the glDepthRange near and far values. The diff​ value is the far​ value minus the near​ value. Do recall that OpenGL makes no requirement that far​ is greater than near​.