textureProjLod - perform a texture lookup with projection and explicit level-of-detail
Contents
Copyright
Copyright © 2011-2014 Khronos Group
[FIXME: source] 11/18/2024 TEXTUREPROJLOD(3G)
Declaration
gvec4textureProjLod(gsampler1Dsampler,vec2P,floatlod);gvec4textureProjLod(gsampler1Dsampler,vec4P,floatlod);gvec4textureProjLod(gsampler2Dsampler,vec3P,floatlod);gvec4textureProjLod(gsampler2Dsampler,vec4P,floatlod);gvec4textureProjLod(gsampler3Dsampler,vec4P,floatlod);floattextureProjLod(sampler1DShadowsampler,vec4P,floatlod);floattextureProjLod(sampler2DShadowsampler,vec4P,floatlod);
Description
textureProjLod performs a texture lookup with projection from an explicitly specified level-of-detail.
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 textureLod(), with lod used to specify the
level-of-detail from which the texture will be sampled.
Name
textureProjLod - perform a texture lookup with projection and explicit level-of-detail
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
Specifies the explicit level-of-detail from which to fetch texels.
See Also
texelFetch(), texelFetchOffset(), texture(), textureGather(), textureGatherOffset(),
textureGatherOffsets(), textureGrad(), textureGradOffset(), textureLod(), textureLodOffset(),
textureOffset(), textureProj(), textureProjGrad(), textureProjGradOffset(), textureProjLodOffset(),
textureProjOffset(), textureQueryLod(), textureSize()
Version Support
┌────────────────┬───────────────────────────────────────────────────────────────────────────────────┐
│ │ 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 │ │ │ │ │ │ │ │ │ │ │ │ │
├────────────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
│ textureProjLod │ - │ - │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │
└────────────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┘
