| | '''OpenGL extension NV.explicit_multisample |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.NV.explicit_multisample to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | In traditional multisample specs, the API only allows access to the samples |
| | indirectly through methods such as coverage values and downsampled |
| | readbacks. NV_explicit_multisample adds a set of new capabilities to allow |
| | more precise control over the use of multisamples. Specifically, it adds: |
| | |
| | * A query in the API to query the location of samples within the pixel |
| | |
| | * An explicit control for the multisample sample mask to augment the |
| | control provided by SampleCoverage |
| | |
| | * A new texture target to wrap a renderbuffer and allow a restricted class |
| | of accesses to the samples |
| | |
| | * The ability to fetch a specific sample from a multisampled texture from |
| | within a shader |
| | |
| | * A program option to enable the new behavior |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/NV/explicit_multisample.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.explicit_multisample import * |
| | from OpenGL.raw.GL.NV.explicit_multisample import _EXTENSION_NAME |
| |
|
| | def glInitExplicitMultisampleNV(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
|
| | glGetMultisamplefvNV=wrapper.wrapper(glGetMultisamplefvNV).setOutput( |
| | 'val',size=(2,),orPassIn=True |
| | ) |
| | |
