| '''OpenGL extension OES.texture_float |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GLES2.OES.texture_float to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| These extensions add texture formats with 16- (aka half float) and 32-bit |
| floating-point components. The 32-bit floating-point components |
| are in the standard IEEE float format. The 16-bit floating-point |
| components have 1 sign bit, 5 exponent bits, and 10 mantissa bits. |
| Floating-point components are clamped to the limits of the range |
| representable by their format. |
| |
| The OES_texture_half_float extension string indicates that the |
| implementation supports 16-bit floating pt texture formats. |
| |
| The OES_texture_float extension string indicates that the |
| implementation supports 32-bit floating pt texture formats. |
| |
| Both these extensions only require NEAREST magnification filter and |
| NEAREST, and NEAREST_MIPMAP_NEAREST minification filters to be supported. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/OES/texture_float.txt |
| ''' |
| from OpenGL import platform, constant, arrays |
| from OpenGL import extensions, wrapper |
| import ctypes |
| from OpenGL.raw.GLES2 import _types, _glgets |
| from OpenGL.raw.GLES2.OES.texture_float import * |
| from OpenGL.raw.GLES2.OES.texture_float import _EXTENSION_NAME |
|
|
| def glInitTextureFloatOES(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
