| '''OpenGL extension NV.bindless_multi_draw_indirect |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.NV.bindless_multi_draw_indirect to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| This extension combines NV_vertex_buffer_unified_memory and |
| ARB_multi_draw_indirect to allow the processing of multiple drawing |
| commands, whose vertex and index data can be sourced from arbitrary |
| buffer locations, by a single function call. |
| |
| The NV_vertex_buffer_unified_memory extension provided a mechanism to |
| specify vertex attrib and element array locations using GPU addresses. |
| Prior to this extension, these addresses had to be set through explicit |
| function calls. Now the ability to set the pointer addresses indirectly |
| by extending the GL_ARB_draw_indirect mechanism has been added. |
| |
| Combined with other "bindless" extensions, such as NV_bindless_texture and |
| NV_shader_buffer_load, it is now possible for the GPU to create draw |
| commands that source all resource inputs, which are common to change |
| frequently between draw calls from the GPU: vertex and index buffers, |
| samplers, images and other shader input data stored in buffers. |
| |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/NV/bindless_multi_draw_indirect.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.NV.bindless_multi_draw_indirect import * |
| from OpenGL.raw.GL.NV.bindless_multi_draw_indirect import _EXTENSION_NAME |
|
|
| def glInitBindlessMultiDrawIndirectNV(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
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| |
