2011 Khronos Group
textureProj 3G
textureProj perform a texture lookup with projection

## Declaration

gvec4 `textureProj` gsampler1D sampler vec2 P [float bias] gvec4 `textureProj` gsampler1D sampler vec4 P [float bias] gvec4 `textureProj` gsampler2D sampler vec3 P [float bias] gvec4 `textureProj` gsampler2D sampler vec4 P [float bias] gvec4 `textureProj` gsampler3D sampler vec4 P [float bias] float `textureProj` sampler1DShadow sampler vec4 P [float bias] float `textureProj` sampler2DShadow sampler vec4 P [float bias] gvec4 `textureProj` gsampler2DRect sampler vec3 P gvec4 `textureProj` gsampler2DRect sampler vec4 P float `textureProj` gsampler2DRectShadow sampler vec4 P

## 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.

bias

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

## Description

`textureProj` 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 texture.

## Version Support

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

## See Also

texelFetch, texelFetchOffset, texture, textureGather, textureGatherOffset, textureGatherOffsets, textureGrad, textureGradOffset, textureLod, textureLodOffset, textureOffset, textureProjGrad, textureProjGradOffset, textureProjLod, textureProjLodOffset, textureProjOffset, 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/.