Difference between revisions of "GLAPI/glSampleMask"

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[[Category:API Reference 4|SampleMaski]]
[[Category:API Reference 4|SampleMaski]]
[[Category:GL 4 API Post Fragment Shader Operations|SampleMask]]
[[Category:Core API Ref Post Fragment Shader Operations|SampleMask]]

Revision as of 07:02, 26 February 2012

Core in version 4.6
Core since version 3.2
Core ARB extension ARB_texture_multisample

glSampleMaski: set the value of a sub-word of the sample mask

Function Definition

 void glSampleMaski(GLuint maskNumber, GLbitfield mask);
Specifies which 32-bit sub-word of the sample mask to update.
Specifies the new value of the mask sub-word.


glSampleMaski sets one 32-bit sub-word of the multi-word sample mask, GL_SAMPLE_MASK_VALUE.

maskIndex specifies which 32-bit sub-word of the sample mask to update, and mask specifies the new value to use for that sub-word. maskIndex must be less than the value of GL_MAX_SAMPLE_MASK_WORDS. Bit B of mask word M corresponds to sample 32 x M + B.


glSampleMaski is available only if the GL version is 3.2 or greater, or if the ARB_texture_multisample extension is supported.


GL_INVALID_VALUE is generated if maskIndex is greater than or equal to the value of GL_MAX_SAMPLE_MASK_WORDS.

See Also

glGenRenderbuffers, glBindRenderbuffer, glRenderbufferStorageMultisample, glFramebufferRenderbuffer, glDeleteRenderbuffers


Copyright © 2010 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.