| '''OpenGL extension ATI.pn_triangles |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.ATI.pn_triangles to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| ATI_pn_triangles provides a path for enabling the GL to internally |
| tessellate input geometry into curved patches. The extension allows the |
| user to tune the amount of tessellation to be performed on each triangle as |
| a global state value. The intent of PN Triangle tessellation is |
| typically to produce geometry with a smoother silhouette and more organic |
| shape. |
| |
| The tessellated patch will replace the triangles input into the GL. |
| The GL will generate new vertices in object-space, prior to geometry |
| transformation. Only the vertices and normals are required to produce |
| proper results, and the rest of the information per vertex is interpolated |
| linearly across the patch. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/ATI/pn_triangles.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.ATI.pn_triangles import * |
| from OpenGL.raw.GL.ATI.pn_triangles import _EXTENSION_NAME |
|
|
| def glInitPnTrianglesATI(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
