GL_3DFX_multisample http://www.opengl.org/registry/specs/3DFX/3dfx_multisample.txt GL_3DFX_multisample GL_MULTISAMPLE_3DFX 0x86B2 GL_SAMPLE_BUFFERS_3DFX 0x86B3 GL_SAMPLES_3DFX 0x86B4 GL_MULTISAMPLE_BIT_3DFX 0x20000000