| '''OpenGL extension AMD.sample_positions |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.AMD.sample_positions to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| This extension provides a mechanism to explicitly set sample positions for a |
| FBO with multi-sampled attachments. The FBO will use identical sample locations |
| for all pixels in each attachment. This forces TEXTURE_FIXED_SAMPLE_LOCATIONS |
| to TRUE if a multi-sampled texture is specified using TexImage2DMultisample |
| or TexImage3DMultisample. That is, using GetTexLevelParameter to query |
| TEXTURE_FIXED_SAMPLE_LOCATIONS will always return TRUE if the mechanism is |
| explicitly used to set the sample positions. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/AMD/sample_positions.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.sample_positions import * |
| from OpenGL.raw.GL.AMD.sample_positions import _EXTENSION_NAME |
|
|
| def glInitSamplePositionsAMD(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
| glSetMultisamplefvAMD=wrapper.wrapper(glSetMultisamplefvAMD).setInputArraySize( |
| 'val', 2 |
| ) |
| |
