| | '''OpenGL extension AMD.blend_minmax_factor |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.AMD.blend_minmax_factor to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | The EXT_blend_minmax extension extended the GL's blending functionality |
| | to allow the blending equation to be specified by the application. That |
| | extension introduced the MIN_EXT and MAX_EXT blend equations, which caused the |
| | result of the blend equation to become the minimum or maximum of the source |
| | color and destination color, respectively. |
| | |
| | The MIN_EXT and MAX_EXT blend equations, however, do not include the source |
| | or destination blend factors in the arguments to the min and max functions. |
| | This extension provides two new blend equations that produce the minimum |
| | or maximum of the products of the source color and source factor, and the |
| | destination color and destination factor. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/AMD/blend_minmax_factor.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.AMD.blend_minmax_factor import * |
| | from OpenGL.raw.GL.AMD.blend_minmax_factor import _EXTENSION_NAME |
| |
|
| | def glInitBlendMinmaxFactorAMD(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
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| |
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| | |
