Name

textureLod — perform a texture lookup with explicit level-of-detail

Declaration

gvec4 textureLod(gsampler2D sampler,
 vec2 P,
 float lod);
 
gvec4 textureLod(gsampler3D sampler,
 vec3 P,
 float lod);
 
gvec4 textureLod(gsamplerCube sampler,
 vec3 P,
 float lod);
 
float textureLod(sampler2DShadow sampler,
 vec3 P,
 float lod);
 
gvec4 textureLod(gsampler2DArray sampler,
 vec3 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

Description

textureLod performs a texture lookup at coordinate P from the texture bound to sampler with an explicit level-of-detail as specified in lod. lod specifies λbase and sets the partial derivatives as follows:

δ u δ x = 0 , δ v δ x = 0 , δ w δ x = 0 δ u δ y = 0 , δ v δ y = 0 , δ w δ y = 0

Version Support

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

See Also

texelFetch, texelFetchOffset, texture, textureGrad, textureGradOffset, textureLodOffset, textureOffset, textureProj, textureProjGrad, textureProjGradOffset, textureProjLod, 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.