| WGL_NV_render_depth_texture | |
| http://oss.sgi.com/projects/ogl-sample/registry/NV/render_depth_texture.txt | |
| WGL_NO_TEXTURE_ARB 0x2077 | |
| WGL_BIND_TO_TEXTURE_DEPTH_NV 0x20A3 | |
| WGL_BIND_TO_TEXTURE_RECTANGLE_DEPTH_NV 0x20A4 | |
| WGL_DEPTH_TEXTURE_FORMAT_NV 0x20A5 | |
| WGL_TEXTURE_DEPTH_COMPONENT_NV 0x20A6 | |
| WGL_DEPTH_COMPONENT_NV 0x20A7 |