glMinSampleShading man page on RedHat
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GLMINSAMPLESHADING(3G) OpenGL Manual GLMINSAMPLESHADING(3G)
NAME
glMinSampleShading - specifies minimum rate at which sample shaing
takes place
C SPECIFICATION
void glMinSampleShading(GLfloat value);
PARAMETERS
value
Specifies the rate at which samples are shaded within each covered
pixel.
DESCRIPTION
glMinSampleShading specifies the rate at which samples are shaded
within a covered pixel. Sample-rate shading is enabled by calling
glEnable() with the parameter GL_SAMPLE_SHADING. If GL_MULTISAMPLE or
GL_SAMPLE_SHADING is disabled, sample shading has no effect. Otherwise,
an implementation must provide at least as many unique color values for
each covered fragment as specified by value times samples where samples
is the value of GL_SAMPLES for the current framebuffer. At least 1
sample for each covered fragment is generated.
A value of 1.0 indicates that each sample in the framebuffer should be
indpendently shaded. A value of 0.0 effectively allows the GL to ignore
sample rate shading. Any value between 0.0 and 1.0 allows the GL to
shade only a subset of the total samples within each covered fragment.
Which samples are shaded and the algorithm used to select that subset
of the fragment's samples is implementation dependent.
NOTES
The type of the value parameter was changed from GLclampf to GLfloat.
This change is transparent to user code and is described in detail on
the removedTypes() page.
ERRORS
None.
ASSOCIATED GETS
glGet() with argument GL_MIN_SAMPLE_SHADING.
glGet() with argument GL_SAMPLES.
SEE ALSO
removedTypes()
COPYRIGHT
Copyright © 2011 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/.
AUTHORS
opengl.org
opengl.org 03/16/2013 GLMINSAMPLESHADING(3G)
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