INTERPOLATEATSAMPLE(3G)         [FIXME: manual]        INTERPOLATEATSAMPLE(3G)

NAME
       interpolateAtSample - sample a varying at the location of a specified
       sample

DECLARATION
       float interpolateAtSample(float interpolant, int sample);

       vec2 interpolateAtSample(vec2 interpolant, int sample);

       vec3 interpolateAtSample(vec3 interpolant, int sample);

       vec4 interpolateAtSample(vec4 interpolant, int sample);

PARAMETERS
       interpolant
           Specifies the interpolant to be sampled at the location of sample
           sample.

       sample
           Specifies the index of the sample whose location will be used to
           sample interpolant.

DESCRIPTION
       interpolateAtSample returns the value of the input varying interpolant
       sampled at the location of sample number sample. If multisample buffers
       are not available, the input varying will be evaluated at the center of
       the pixel. If sample sample does not exist, the position used to
       interpolate the input varying is undefined.

VERSION SUPPORT

       +--------------------+-----------------------------------------------------------------------------------+
       |                    |                          OpenGL Shading Language Version                          |
       +--------------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |Function Name       | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 | 4.50 |
       +--------------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |interpolateAtSample |  -   |  -   |  -   |  -   |  -   |  -   | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  |
       +--------------------+------+------+------+------+------+------+------+------+------+------+------+------+

SEE ALSO
       interpolateAtCentroid(), interpolateAtOffset()

COPYRIGHT
       Copyright (C) 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/.

COPYRIGHT
       Copyright (C) 2011-2014 Khronos Group

[FIXME: source]                   05/21/2022           INTERPOLATEATSAMPLE(3G)