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textureLodOffset

Name

textureLodOffset — perform a texture lookup with explicit level-of-detail and offset

Declaration

gvec4 textureLodOffset( gsampler1D sampler,
  float P,
  float lod,
  int offset);
 
gvec4 textureLodOffset( gsampler2D sampler,
  vec2 P,
  float lod,
  ivec2 offset);
 
gvec4 textureLodOffset( gsampler3D sampler,
  vec3 P,
  float lod,
  ivec3 offset);
 
float textureLodOffset( sampler1DShadow sampler,
  vec3 P,
  float lod,
  int offset);
 
float textureLodOffset( sampler2DShadow sampler,
  vec4 P,
  float lod,
  ivec2 offset);
 
gvec4 textureLodOffset( gsampler1DArray sampler,
  vec2 P,
  float lod,
  int offset);
 
gvec4 textureLodOffset( gsampler2DArray sampler,
  vec3 P,
  float lod,
  ivec2 offset);
 
float textureLodOffset( sampler1DArrayShadow sampler,
  vec3 P,
  float lod,
  int offset);
 

Parameters

sampler

Specifies 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.

lod

Specifies the explicit level-of-detail from which texels will be fetched.

offset

Specifies the offset that will be applied to P before texels are fetched.

Description

textureLodOffset performs a texture lookup at coordinate P from the texture bound to sampler with an explicit level-of-detail as specified in lod. Behavior is the same as in textureLod except that before sampling, offset is added to P.

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
textureLodOffset - - ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
textureLodOffset (gsampler2DRect{Shadow}) - - - ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
textureLodOffset (gsamplerCubeArray) - - - - - - ✔ ✔ ✔ ✔ ✔ ✔
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