| | '''OpenGL extension NV.shader_atomic_float |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.NV.shader_atomic_float to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension provides GLSL built-in functions and assembly opcodes |
| | allowing shaders to perform atomic read-modify-write operations to buffer |
| | or texture memory with floating-point components. The set of atomic |
| | operations provided by this extension is limited to adds and exchanges. |
| | Providing atomic add support allows shaders to atomically accumulate the |
| | sum of floating-point values into buffer or texture memory across multiple |
| | (possibly concurrent) shader invocations. |
| | |
| | This extension provides GLSL support for atomics targeting image uniforms |
| | (if GLSL 4.20, ARB_shader_image_load_store, or EXT_shader_image_load_store |
| | is supported) or floating-point pointers (if NV_gpu_shader5 is supported). |
| | Additionally, assembly opcodes for these operations is also provided if |
| | NV_gpu_program5 is supported. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/NV/shader_atomic_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.NV.shader_atomic_float import * |
| | from OpenGL.raw.GL.NV.shader_atomic_float import _EXTENSION_NAME |
| |
|
| | def glInitShaderAtomicFloatNV(): |
| | '''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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| | |
