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textureLod

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 3.10
textureLod -
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