NAME

       interpolateAtOffset - sample a varying at specified offset from the center of a pixel

DECLARATION

       float interpolateAtOffset(float interpolant, vec2 offset);

       vec2 interpolateAtOffset(vec2 interpolant, vec2 offset);

       vec3 interpolateAtOffset(vec3 interpolant, vec2 offset);

       vec4 interpolateAtOffset(vec4 interpolant, vec2 offset);

PARAMETERS

       interpolant
           Specifies the interpolant to be sampled at the specified offset.

       offset
           Specifies the offset from the center of the pixel at which to sample interpolant.

DESCRIPTION

       interpolateAtOffset returns the value of the input varying interpolant sampled at an
       offset from the center of the pixel specified by offset. The two floating-point components
       of offset give the offset in pixels in the x and y directions from the center of the
       pixel, respectively. An offset of (0, 0) identifies the center of the pixel. The range and
       granularity of offsets supported by this function is implementation-dependent.

VERSION SUPPORT

       ┌─────────────────────┬───────────────────────────────────────────────────────────────────────────────────┐
       │                     │        OpenGL Shading Language Version                                            │
       ├─────────────────────┼──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┤
       │Function             │ 1.10 │ 1.20 │ 1.30 │ 1.40 │ 1.50 │ 3.30 │ 4.00 │ 4.10 │ 4.20 │ 4.30 │ 4.40 │ 4.50 │
       │Name                 │      │      │      │      │      │      │      │      │      │      │      │      │
       ├─────────────────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │interpolateAtoOffset │  -   │  -   │  -   │  -   │  -   │  -   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
       └─────────────────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┘

SEE ALSO

       interpolateAtCentroid(), interpolateAtSample()

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

[FIXME: source]                             01/03/2018                    INTERPOLATEATOFFSET(3G)