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

FunctionVersion 1.10Version 1.20Version 1.30Version 1.40Version 1.50Version 3.30Version 4.00Version 4.10Version 4.20Version 4.30
interpolateAtSample------YYYY

See Also

interpolateAtCentroid, interpolateAtOffset

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/.