table of contents
other versions
TEXTUREPROJOFFSET(3G) | [FIXME: manual] | TEXTUREPROJOFFSET(3G) |
NAME¶
textureProjOffset - perform a texture lookup with projection and offsetDECLARATION¶
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¶
samplerSpecifies 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 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.VERSION SUPPORT¶
OpenGL Shading Language Version | ||||||||||||
Function Name | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 | 4.50 |
textureProjOffset | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
textureProjOffset (gsampler2DRect{Shadow}) | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
SEE ALSO¶
texelFetch(), texelFetchOffset(), texture(), textureGather(), textureGatherOffset(), textureGatherOffsets(), textureGrad(), textureGradOffset(), textureLod(), textureLodOffset(), textureOffset(), textureProj(), textureProjGrad(), textureProjGradOffset(), textureProjLod(), textureProjLodOffset(), textureQueryLod(), textureSize()COPYRIGHT¶
Copyright © 2011-2014 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/.COPYRIGHT¶
Copyright © 2011-2014 Khronos Group08/26/2014 | [FIXME: source] |