| '''OpenGL extension ARB.fragment_program_shadow |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.ARB.fragment_program_shadow to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| This extension extends ARB_fragment_program to remove |
| the interaction with ARB_shadow. |
| |
| This extension defines the program option |
| "ARB_fragment_program_shadow". |
| |
| If a fragment program specifies the option "ARB_fragment_program_shadow" |
| |
| SHADOW1D, SHADOW2D, SHADOWRECT |
| |
| are added as texture targets. When shadow map comparisons are |
| desired, specify the SHADOW1D, SHADOW2D, or SHADOWRECT texture |
| targets in texture instructions. |
| |
| Programs must assure that the comparison mode for each depth |
| texture (TEXTURE_COMPARE_MODE) and/or the internal texture |
| format (DEPTH_COMPONENT) and the targets of the texture lookup |
| instructions match. Otherwise, if the comparison mode |
| and/or the internal texture format are inconsistent with the |
| texture target, the results of the texture lookup are undefined. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/ARB/fragment_program_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.ARB.fragment_program_shadow import * |
| from OpenGL.raw.GL.ARB.fragment_program_shadow import _EXTENSION_NAME |
|
|
| def glInitFragmentProgramShadowARB(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
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