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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 © 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 © 2011-2014 Khronos Group

05/21/2015 [FIXME: source]