Signature
Parameters
| Variables | Description |
|---|---|
| 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
independently 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
.
Version Support
| glMinSampleShading |
See Also
removedTypes
Copyright
Copyright
2011-2014 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/
.