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)