2011 Khronos Group
textureProjOffset 3G
textureProjOffset perform a texture lookup with projection and offset

## Declaration

gvec4 `textureProjOffset` gsampler1D sampler vec2 P int offset [float bias] gvec4 `textureProjOffset` gsampler1D sampler vec4 P int offset [float bias] gvec4 `textureProjOffset` gsampler2D sampler vec3 P ivec2 offset [float bias] gvec4 `textureProjOffset` gsampler2D sampler vec4 P ivec2 offset [float bias] gvec4 `textureProjOffset` gsampler3D sampler vec4 P ivec3 offset [float bias] float `textureProjOffset` sampler1DShadow sampler vec4 P int offset [float bias] float `textureProjOffset` sampler2DShadow sampler vec4 P ivec2 offset [float bias] gvec4 `textureProjOffset` gsampler2DRect sampler vec3 P ivec2 offset gvec4 `textureProjOffset` gsampler2DRect sampler vec4 P ivec2 offset float `textureProjOffset` gsampler2DRectShadow sampler vec4 P ivec2 offset

## Parameters

sampler

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

P

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

offset

  Specifies the offset that is applied to P before sampling occurs.

bias

  Specifies an optional bias to be applied during level-of-detail computation.

## Description

`textureProjOffset` performs a texture lookup with projection. The texture coordinates consumed from P, not including the last component of P, are divided by the last component of P. The resulting 3 rd component of P in the shadow forms is used as D ref. After these values are computed, the texture lookup proceeds as in textureOffset, with the offset used to offset the computed texture coordinates.

## Version Support

#VARTABLECOLS#
#FUNCTABLEHEADER#
textureProjOffset#newin13#
textureProjOffset (gsampler2DRect{Shadow})#newin14#

## See Also

texelFetch, texelFetchOffset, texture, textureGather, textureGatherOffset, textureGatherOffsets, textureGrad, textureGradOffset, textureLod, textureLodOffset, textureOffset, textureProj, textureProjGrad, textureProjGradOffset, textureProjLod, textureProjLodOffset, textureQueryLod, textureSize

## 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/.