| '''OpenGL extension EXT.blend_minmax |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.EXT.blend_minmax to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| Blending capability is extended by respecifying the entire blend |
| equation. While this document defines only two new equations, the |
| BlendEquationEXT procedure that it defines will be used by subsequent |
| extensions to define additional blending equations. |
| |
| The two new equations defined by this extension produce the minimum |
| (or maximum) color components of the source and destination colors. |
| Taking the maximum is useful for applications such as maximum projection |
| in medical imaging. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/EXT/blend_minmax.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.EXT.blend_minmax import * |
| from OpenGL.raw.GL.EXT.blend_minmax import _EXTENSION_NAME |
|
|
| def glInitBlendMinmaxEXT(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
