GL_NV_conservative_raster_dilate https://www.khronos.org/registry/OpenGL/extensions/NV/NV_conservative_raster_dilate.txt GL_NV_conservative_raster_dilate GL_CONSERVATIVE_RASTER_DILATE_NV 0x9379 GL_CONSERVATIVE_RASTER_DILATE_RANGE_NV 0x937A GL_CONSERVATIVE_RASTER_DILATE_GRANULARITY_NV 0x937B void glConservativeRasterParameterfNV (GLenum pname, GLfloat value)