| | '''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 ) |
| |
|
| |
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| | |
