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TEXTUREPROJ(3G) | [FIXME: manual] | TEXTUREPROJ(3G) |
NAME¶
textureProj - perform a texture lookup with projectionDECLARATION¶
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¶
samplerSpecifies 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 3rd component of P in the shadow forms is used as Dref. After these values are computed, the texture lookup proceeds as in texture().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 |
textureProj | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
textureProj (gsampler2DRect{Shadow}) | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
SEE ALSO¶
texelFetch(), texelFetchOffset(), texture(), textureGather(), textureGatherOffset(), textureGatherOffsets(), textureGrad(), textureGradOffset(), textureLod(), textureLodOffset(), textureOffset(), textureProjGrad(), textureProjGradOffset(), textureProjLod(), textureProjLodOffset(), textureProjOffset(), 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] |