textureProjLodOffset — perform a texture lookup with projection and explicit level-of-detail and offset
gvec4 textureProjLodOffset( | gsampler1D | sampler, |
vec2 | P, | |
float | lod, | |
int | offset) ; |
gvec4 textureProjLodOffset( | gsampler1D | sampler, |
vec4 | P, | |
float | lod, | |
int | offset) ; |
gvec4 textureProjLodOffset( | gsampler2D | sampler, |
vec3 | P, | |
float | lod, | |
ivec2 | offset) ; |
gvec4 textureProjLodOffset( | gsampler2D | sampler, |
vec4 | P, | |
float | lod, | |
ivec2 | offset) ; |
gvec4 textureProjLodOffset( | gsampler3D | sampler, |
vec4 | P, | |
float | lod, | |
ivec3 | offset) ; |
float textureProjLodOffset( | sampler1DShadow | sampler, |
vec4 | P, | |
float | lod, | |
int | offset) ; |
float textureProjLodOffset( | sampler2DShadow | sampler, |
vec4 | P, | |
float | lod, | |
ivec2 | offset) ; |
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.
offset
Specifies the offset, in texels, to be applied to P
before fetching texels.
textureProjLodOffset
performs a texture lookup with projection from an explicitly specified level-of-detail with an offset applied
to the texture coordinates before sampling. The texture coordinates
consumed from P
, not including the last component of P
,
are divided by the last component of P
. The resulting P
in the shadow forms is used as
lod
used to specify the level-of-detail from which the texture will be sampled and offset
used to specifiy the offset, in texels, to be applied to the texture coordinates before sampling.
Function | Version 1.10 | Version 1.20 | Version 1.30 | Version 1.40 | Version 1.50 | Version 3.30 | Version 4.00 | Version 4.10 | Version 4.20 | Version 4.30 |
---|---|---|---|---|---|---|---|---|---|---|
textureProjLodOffset | - | - | Y | Y | Y | Y | Y | Y | Y | Y |
texelFetch, texelFetchOffset, texture, textureGather, textureGatherOffset, textureGatherOffsets, textureGrad, textureGradOffset, textureLod, textureLodOffset, textureOffset, textureProj, textureProjGrad, textureProjGradOffset, textureProjLod, textureProjOffset, textureQueryLod, textureSize
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/.