textureProjOffset - perform a texture lookup with projection and offset

       Copyright © 2011-2014 Khronos Group

[FIXME: source]                                    11/18/2024                              TEXTUREPROJOFFSET(3G)

gvec4textureProjOffset(gsampler1Dsampler,vec2P,intoffset,[floatbias]);gvec4textureProjOffset(gsampler1Dsampler,vec4P,intoffset,[floatbias]);gvec4textureProjOffset(gsampler2Dsampler,vec3P,ivec2offset,[floatbias]);gvec4textureProjOffset(gsampler2Dsampler,vec4P,ivec2offset,[floatbias]);gvec4textureProjOffset(gsampler3Dsampler,vec4P,ivec3offset,[floatbias]);floattextureProjOffset(sampler1DShadowsampler,vec4P,intoffset,[floatbias]);floattextureProjOffset(sampler2DShadowsampler,vec4P,ivec2offset,[floatbias]);gvec4textureProjOffset(gsampler2DRectsampler,vec3P,ivec2offset);gvec4textureProjOffset(gsampler2DRectsampler,vec4P,ivec2offset);floattextureProjOffset(gsampler2DRectShadowsampler,vec4P,ivec2offset);

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 3rd component of
       P in the shadow forms is used as Dref. After these values are computed, the texture lookup proceeds as in
       textureOffset(), with the offset used to offset the computed texture coordinates.

       textureProjOffset - perform a texture lookup with projection and offset

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.

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

       ┌──────────────────────────┬───────────────────────────────────────────────────────────────────────────────────┐
       │                          │        OpenGLShadingLanguageVersion                                            │
       ├──────────────────────────┼──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┤
       │ 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                     │      │      │      │      │      │      │      │      │      │      │      │      │
       ├──────────────────────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │ textureProjOffset        │  -   │  -   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
       ├──────────────────────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │ textureProjOffset        │  -   │  -   │  -   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
       │ (gsampler2DRect{Shadow}) │      │      │      │      │      │      │      │      │      │      │      │      │
       └──────────────────────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┘