Texture2D::GatherRed(S,float,int) function

For four texel values that would be used in a bi-linear filtering operation, returns a comparison of their red component against a compare value.

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:

See also

GatherRed methods

Shader Model 5