Graphics.Rendering.OpenGL.Raw.NV.FramebufferMultisampleCoverage
gl_MAX_MULTISAMPLE_COVERAGE_MODES_NV
gl_MULTISAMPLE_COVERAGE_MODES_NV
gl_RENDERBUFFER_COLOR_SAMPLES_NV
gl_RENDERBUFFER_COVERAGE_SAMPLES_NV
glRenderbufferStorageMultisampleCoverageNV