| | '''OpenGL extension NV.multisample_coverage |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GLX.NV.multisample_coverage to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | The ARB_multisample extension provides a mechanism for antialiasing |
| | primitives. This mechanism allows an application to request an |
| | additional buffer, the multisample buffer, that is added to the |
| | framebuffer. An application can request the number of samples per |
| | fragment that are stored in the multisample buffer. Rendering |
| | proceeds by writing color, depth, and stencil values for each |
| | sample to the multisample buffer. The results are automatically |
| | resolved to a single displayable color each time a pixel is |
| | updated. |
| | |
| | Coverage Sample Anti-Aliasing (CSAA) is an extension to multisample |
| | antialiasing. The technique separates "samples" into two types of |
| | samples. "Color samples" are samples with color, depth, and |
| | stencil information stored in the multisample buffer. "Coverage |
| | samples" include both color samples and additional samples that only |
| | provide pixel coverage information. |
| | |
| | This extension follows the example of the |
| | NV_framebuffer_multisample_coverage extension, which adds CSAA |
| | support for framebuffer objects. The base description of |
| | multisample rendering is written in terms of coverage samples and |
| | color samples. The windows system notion of "samples" |
| | (SAMPLES_ARB) is layered on top of coverage and color samples. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/NV/multisample_coverage.txt |
| | ''' |
| | from OpenGL import platform, constant, arrays |
| | from OpenGL import extensions, wrapper |
| | import ctypes |
| | from OpenGL.raw.GLX import _types, _glgets |
| | from OpenGL.raw.GLX.NV.multisample_coverage import * |
| | from OpenGL.raw.GLX.NV.multisample_coverage import _EXTENSION_NAME |
| |
|
| | def glInitMultisampleCoverageNV(): |
| | '''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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| | |
