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LibGL+LibSoftGPU: Implement glColorMaterial
and GL_COLOR_MATERIAL
When `GL_COLOR_MATERIAL` is enabled, specific material parameters can be overwritten by the current color per-vertex during the lighting calculations. Which parameter is controlled by `glColorMaterial`. Also move the lighting calculations _before_ clipping, because the spec says so. As a result, we interpolate the resulting vertex color instead of the input color.
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8 changed files with 158 additions and 35 deletions
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@ -93,6 +93,8 @@ extern "C" {
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#define GL_SHADING_LANGUAGE_VERSION 0x8B8C
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// Get parameters
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#define GL_COLOR_MATERIAL_FACE 0x0B55
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#define GL_COLOR_MATERIAL_MODE 0x0B56
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#define GL_COLOR_MATERIAL 0x0B57
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#define GL_FOG_START 0x0B63
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#define GL_FOG_END 0x0B64
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