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

NAME
       texelFetch - perform a lookup of a single texel within a texture

DECLARATION
       gvec4 texelFetch(gsampler1D sampler, int P, int lod);

       gvec4 texelFetch(gsampler2D sampler, ivec2 P, int lod);

       gvec4 texelFetch(gsampler3D sampler, ivec3 P, int lod);

       gvec4 texelFetch(gsampler2DRect sampler, ivec2 P);

       gvec4 texelFetch(gsampler1DArray sampler, ivec2 P, int lod);

       gvec4 texelFetch(gsampler2DArray sampler, ivec3 P, int lod);

       gvec4 texelFetch(gsamplerBuffer sampler, int P);

       gvec4 texelFetch(gsampler2DMS sampler, ivec2 P, int sample);

       gvec4 texelFetch(gsampler2DMSArray sampler, ivec3 P, int sample);

PARAMETERS
       sampler
           Specifies the sampler to which the texture from which texels will
           be retrieved is bound.

       P
           Specifies the texture coordinates at which texture will be sampled.

       lod
           If present, specifies the level-of-detail within the texture from
           which the texel will be fetched.

       sample
           For multisampled fetches, specifies which sample within the texel
           from which will be returned.

DESCRIPTION
       texelFetch performs a lookup of a single texel from texture coordinate
       P in the texture bound to sampler. The array layer is specified in the
       last component of P for array forms. The lod parameter (if present)
       specifies the level-of-detail from which the texel will be fetched. The
       sample specifies which sample within the texel will be returned when
       reading from a multi-sample texure.

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 |
       +-------------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |texelFetch         |  -   |  -   | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  |
       +-------------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |texelFetch         |  -   |  -   |  -   | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  |
       |(gsampler2DRect,   |      |      |      |      |      |      |      |      |      |      |      |      |
       |gsamplerBuffer)    |      |      |      |      |      |      |      |      |      |      |      |      |
       +-------------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |texelFetch         |  -   |  -   |  -   |  -   | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  |
       |(gsampler2DMS,     |      |      |      |      |      |      |      |      |      |      |      |      |
       |gsampler2DMSArray) |      |      |      |      |      |      |      |      |      |      |      |      |
       +-------------------+------+------+------+------+------+------+------+------+------+------+------+------+

SEE ALSO
       texelFetch(), texture(), textureGather(), textureGatherOffset(),
       textureGatherOffsets(), textureGrad(), textureGradOffset(),
       textureLod(), textureLodOffset(), textureOffset(), textureProj(),
       textureProjGrad(), textureProjGradOffset(), textureProjLod(),
       textureProjLodOffset(), textureProjOffset(), textureQueryLod(),
       textureSize()

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                    TEXELFETCH(3G)