| '''OpenGL extension SGIX.texture_add_env | |
| This module customises the behaviour of the | |
| OpenGL.raw.GL.SGIX.texture_add_env to provide a more | |
| Python-friendly API | |
| Overview (from the spec) | |
| New texture environment function ADD is supported with the following | |
| equation: | |
| Cv = Cf + CcCt + Cb | |
| New function may be specified by calling glTexEnv with GL_ADD token. | |
| New parameter Cb (bias) may be specified by calling TexEnv with | |
| TEXTURE_ENV_BIAS_SGIX token. | |
| The official definition of this extension is available here: | |
| http://www.opengl.org/registry/specs/SGIX/texture_add_env.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.texture_add_env import * | |
| from OpenGL.raw.GL.SGIX.texture_add_env import _EXTENSION_NAME | |
| def glInitTextureAddEnvSGIX(): | |
| '''Return boolean indicating whether this extension is available''' | |
| from OpenGL import extensions | |
| return extensions.hasGLExtension( _EXTENSION_NAME ) | |
| ### END AUTOGENERATED SECTION |