| | '''OpenGL extension ATI.pixel_format_float |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.ATI.pixel_format_float to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension adds pixel formats with floating-point RGBA color |
| | components. |
| | |
| | The size of each float components is specified using the same |
| | WGL_RED_BITS_ARB, WGL_GREEN_BITS_ARB, WGL_BLUE_BITS_ARB and |
| | WGL_ALPHA_BITS_ARB pixel format attributes that are used for |
| | defining the size of fixed-point components. 32 bit floating- |
| | point components are in the standard IEEE float format. 16 bit |
| | floating-point components have 1 sign bit, 5 exponent bits, |
| | and 10 mantissa bits. |
| | |
| | In standard OpenGL RGBA color components are normally clamped to |
| | the range [0,1]. The color components of a float buffer are |
| | clamped to the limits of the range representable by their format. |
| | |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/ATI/pixel_format_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.ATI.pixel_format_float import * |
| | from OpenGL.raw.GL.ATI.pixel_format_float import _EXTENSION_NAME |
| |
|
| | def glInitPixelFormatFloatATI(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
|
| |
|
| | |
