| | '''OpenGL extension ARB.half_float_pixel |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.ARB.half_float_pixel to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension introduces a new data type for half-precision (16-bit) |
| | floating-point quantities. The floating-point format is very similar |
| | to the IEEE single-precision floating-point standard, except that it |
| | has only 5 exponent bits and 10 mantissa bits. Half-precision floats |
| | are smaller than full precision floats and provide a larger dynamic |
| | range than similarly sized normalized scalar data types. |
| | |
| | This extension allows applications to use half-precision floating- |
| | point data when specifying pixel data. It extends the existing image |
| | specification commands to accept the new data type. |
| | |
| | Floating-point data is clamped to [0, 1] at various places in the |
| | GL unless clamping is disabled with the ARB_color_buffer_float |
| | extension. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/ARB/half_float_pixel.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.half_float_pixel import * |
| | from OpenGL.raw.GL.ARB.half_float_pixel import _EXTENSION_NAME |
| |
|
| | def glInitHalfFloatPixelARB(): |
| | '''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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| | |
