| '''OpenGL extension SGIX.shadow |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.SGIX.shadow to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| This extension defines two new operations to be performed on texture |
| values before they are passed on to the filtering subsystem. These |
| operations perform either a <= or >= test on the value from texture |
| memory and the iterated R value, and return 1.0 or 0.0 if the test |
| passes or fails, respectively. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/SGIX/shadow.txt |
| ''' |
| from OpenGL import platform, constant, arrays |
| from OpenGL import extensions, wrapper |
| import ctypes |
| from OpenGL.raw.GL import _types, _glgets |
| from OpenGL.raw.GL.SGIX.shadow import * |
| from OpenGL.raw.GL.SGIX.shadow import _EXTENSION_NAME |
|
|
| def glInitShadowSGIX(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
