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Implement fragment program fallback for GL_ATI_texture_env_combine3 and GL_NV_texture_env_combine4 #682

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kaetemi opened this issue Mar 9, 2023 · 0 comments
Open

Implement fragment program fallback for GL_ATI_texture_env_combine3 and GL_NV_texture_env_combine4 #682

kaetemi opened this issue Mar 9, 2023 · 0 comments
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enhancement good first task nel_3d

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kaetemi commented Mar 9, 2023 •
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On Intel HD graphics the GL_ATI_texture_env_combine3 and GL_NV_texture_env_combine4 extensions are not supported, this causes reflection on armor to become disabled. As GL_ARB_fragment_program is available on this graphics target, it should be possible to support the MAD operator in the texture stages by generating a fragment program.

The behaviour of GL_ATI_texture_env_combine3 is the desired ideal behaviour.
@kaetemi kaetemi changed the title Implement fragment program fallback for GL_ATI_texture_env_combine3 or GL_NV_texture_env_combine4 Implement fragment program fallback for GL_ATI_texture_env_combine3 and GL_NV_texture_env_combine4 Mar 9, 2023
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