Name

textureProjLod — perform a texture lookup with projection and explicit level-of-detail

Declaration

gvec4 textureProjLod(gsampler2D sampler,
 vec3 P,
 float lod);
 
gvec4 textureProjLod(gsampler2D sampler,
 vec4 P,
 float lod);
 
gvec4 textureProjLod(gsampler3D sampler,
 vec4 P,
 float lod);
 
float textureProjLod(sampler2DShadow sampler,
 vec4 P,
 float lod);
 

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.

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.

Version Support

OpenGL ES Shading Language Version
Function Name 1.00 3.00
textureProjLod-✔

See Also

texelFetch, texelFetchOffset, texture, textureGrad, textureGradOffset, textureLod, textureLodOffset, textureOffset, textureProj, textureProjGrad, textureProjGradOffset, textureProjLodOffset, textureProjOffset, textureSize

Copyright

Copyright © 2011-2013 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.