GatherRed(S,float,int) function

Samples a texture and returns the red component.

Syntax

TemplateType GatherRed(
  in sampler s,
  in float2 location,
  in int2 offset
);

Parameters

s [in]

Type: sampler

The zero-based sampler index.

location [in]

Type: float2

The sample coordinates (u,v).

offset [in]

Type: int2

An offset that is applied to the texture coordinate before sampling.

Return value

Type: TemplateType

A four-component value whose type is the same as the template type.

Remarks

The texture samples can be used for bilinear interpolation.

This function is supported for the following types of shaders:

Vertex Hull Domain Geometry Pixel Compute
x x x x x x

 

See also

GatherRed methods

Shader Model 5