| | '''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 ) |
| |
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| |
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| | |
