| | '''OpenGL extension EXT.draw_instanced |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.EXT.draw_instanced to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension provides the means to render multiple instances of |
| | an object with a single draw call, and an "instance ID" variable |
| | which can be used by the vertex program to compute per-instance |
| | values, typically an object's transform. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/EXT/draw_instanced.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.EXT.draw_instanced import * |
| | from OpenGL.raw.GL.EXT.draw_instanced import _EXTENSION_NAME |
| |
|
| | def glInitDrawInstancedEXT(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
|
| | |
| | glDrawElementsInstancedEXT=wrapper.wrapper(glDrawElementsInstancedEXT).setInputArraySize( |
| | 'indices', None |
| | ) |
| | |