Graphics.GL.NV.TextureMultisample
glGetNVTextureMultisample
gl_NV_texture_multisample
glTexImage2DMultisampleCoverageNV
glTexImage3DMultisampleCoverageNV
glTextureImage2DMultisampleCoverageNV
glTextureImage2DMultisampleNV
glTextureImage3DMultisampleCoverageNV
glTextureImage3DMultisampleNV