TEXELFETCHOFFSET(3G)

    .SH "NAME" texelFetchOffset - perform a lookup of a single texel within a texture with an offset
    .SH "DECLARATION"

            .HP u gvec4 texelFetchOffset(gsampler1D sampler, int P, int lod, int offset);
            .HP u gvec4 texelFetchOffset(gsampler2D sampler, ivec2 P, int lod, ivec2 offset);
            .HP u gvec4 texelFetchOffset(gsampler3D sampler, ivec3 P, int lod, ivec3 offset);
            .HP u gvec4 texelFetchOffset(gsampler2DRect sampler, ivec2 P, ivec2 offset);
            .HP u gvec4 texelFetchOffset(gsampler1DArray sampler, ivec2 P, int lod, ivec2 offset);
            .HP u gvec4 texelFetchOffset(gsampler2DArray sampler, ivec3 P, int lod, ivec2 offset);

    .SH "PARAMETERS"

        .PP sampler

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

            .RE
            .PP P

                        Specifies the texture coordinates at which texture will be sampled.

                .RE
                .PP lod

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

                    .RE
                    .PP offset

                                Specifies offset, in texels that will be applied to P before looking up the texel.

                        .RE

                    .SH "DESCRIPTION"
                        .PP texelFetchOffset performs a lookup of a single texel from texture coordinate P in the texture bound to sampler. Before fetching the texel, the offset specified in offset is added to P. offset must be a constant expression. 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 parameter specifies which sample within the texel will be returned when reading from a multi-sample texure.

                    .SH "VERSION SUPPORT"
                        .TS allbox tab(:); lB cB s s s s s s s s s s s lB cB cB cB cB cB cB cB cB cB cB cB cB. T{ T}:T{ OpenGL Shading Language Version T} T{ Function Name T}:T{ 1.10 T}:T{ 1.20 T}:T{ 1.30 T}:T{ 1.40 T}:T{ 1.50 T}:T{ 3.30 T}:T{ 4.00 T}:T{ 4.10 T}:T{ 4.20 T}:T{ 4.30 T}:T{ 4.40 T}:T{ 4.50 T} l c c c c c c c c c c c c l c c c c c c c c c c c c l c c c c c c c c c c c c. T{ texelFetchOffset T}:T{ - T}:T{ - T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T} T{ texelFetchOffset (gsampler2DRect) T}:T{ - T}:T{ - T}:T{ - T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T} T{ texelFetchOffset (gsampler2DMS, gsampler2DMSArray) T}:T{ - T}:T{ - T}:T{ - T}:T{ - T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}:T{ ✔ T}

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

                    .SH "COPYRIGHT"
                        .PP 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. https://opencontent.org/openpub/.

COPYRIGHT
Copyright © 2011-2014 Khronos Group