| '''OpenGL extension OES.sample_shading |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GLES2.OES.sample_shading to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| In standard multisample rendering, an implementation is allowed to |
| assign the same sets of fragment shader input values to each sample. |
| This can cause aliasing where the fragment shader input values are |
| used to generate a result that doesn't antialias itself, for example |
| with alpha-tested transparency. |
| |
| This extension adds the ability to explicitly request that an |
| implementation use a minimum number of unique set of fragment |
| computation inputs when multisampling a pixel. Specifying such a |
| requirement can reduce aliasing that results from evaluating the |
| fragment computations too few times per pixel. |
| |
| This extension adds new global state that controls the minimum |
| number of samples for which attribute data is independently |
| interpolated. When enabled, all fragment-shading operations |
| are executed independently on each sample. |
| |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/OES/sample_shading.txt |
| ''' |
| from OpenGL import platform, constant, arrays |
| from OpenGL import extensions, wrapper |
| import ctypes |
| from OpenGL.raw.GLES2 import _types, _glgets |
| from OpenGL.raw.GLES2.OES.sample_shading import * |
| from OpenGL.raw.GLES2.OES.sample_shading import _EXTENSION_NAME |
|
|
| def glInitSampleShadingOES(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
