| GL_ATI_separate_stencil | |
| http://www.ati.com/developer/sdk/RadeonSDK/Html/Info/ATI_separate_stencil.txt | |
| GL_STENCIL_BACK_FUNC_ATI 0x8800 | |
| GL_STENCIL_BACK_FAIL_ATI 0x8801 | |
| GL_STENCIL_BACK_PASS_DEPTH_FAIL_ATI 0x8802 | |
| GL_STENCIL_BACK_PASS_DEPTH_PASS_ATI 0x8803 | |
| void glStencilOpSeparateATI (GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass) | |
| void glStencilFuncSeparateATI (GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask) |