| '''OpenGL extension ARB.depth_buffer_float |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.ARB.depth_buffer_float to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| This extension provides new texture internal formats whose depth |
| components are stored as 32-bit floating-point values, rather than the |
| normalized unsigned integers used in existing depth formats. |
| Floating-point depth textures support all the functionality supported for |
| fixed-point depth textures, including shadow mapping and rendering support |
| via EXT_framebuffer_object. Floating-point depth textures can store |
| values outside the range [0,1]. |
| |
| Additionally, this extension provides new packed depth/stencil pixel |
| formats (see EXT_packed_depth_stencil) that have 64-bit pixels consisting |
| of a 32-bit floating-point depth value, 8 bits of stencil, and 24 unused |
| bites. A packed depth/stencil texture internal format is also provided. |
| |
| This extension does not provide support for WGL or GLX pixel formats with |
| floating-point depth buffers. The existing (but not commonly used) |
| WGL_EXT_depth_float extension could be used for this purpose. |
| |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/ARB/depth_buffer_float.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.ARB.depth_buffer_float import * |
| from OpenGL.raw.GL.ARB.depth_buffer_float import _EXTENSION_NAME |
|
|
| def glInitDepthBufferFloatARB(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
