| '''OpenGL extension INTEL.conservative_rasterization |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.INTEL.conservative_rasterization to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| Regular rasterization includes fragments with at least one |
| sample covered by a polygon. Conservative rasterization includes all |
| fragments that are at least partially covered by the polygon. |
| |
| In some use cases, it is also important to know if a fragment is fully |
| covered by a polygon, i.e. if all parts of the fragment are within the |
| polygon. An application may, for example, want to process fully covered |
| fragments different from the "edge" pixels. This extension adds an option |
| for the fragment shader to receive this information via gl_SampleMaskIn[]. |
| |
| This extension affects only polygons in FILL mode and specifically does not |
| imply any changes in processing of lines or points. |
| |
| Conservative rasterization automatically disables polygon antialiasing |
| rasterization if enabled by POLYGON_SMOOTH. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/INTEL/conservative_rasterization.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.INTEL.conservative_rasterization import * |
| from OpenGL.raw.GL.INTEL.conservative_rasterization import _EXTENSION_NAME |
|
|
| def glInitConservativeRasterizationINTEL(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
