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TextureCube::GatherCmpBlue(S,float,float,uint) function

  • Article

For four texel values that would be used in a bi-linear filtering operation, returns a comparison of their blue component against a compare value along with tile-mapping status.

Syntax

TemplateType GatherCmpBlue(
  in  SamplerState S,
  in  float        Location,
  in  float        CompareValue,
  out uint         Status
);

Parameters

S [in]

Type: SamplerState

The zero-based sampler index.

Location [in]

Type: float

The sample coordinates (u,v).

CompareValue [in]

Type: float

A value to compare each against each sampled value.

Status [out]

Type: uint

The status of the operation. You can't access the status directly; instead, pass the status to the CheckAccessFullyMapped intrinsic function. CheckAccessFullyMapped returns TRUE if all values from the corresponding Sample, Gather, or Load operation accessed mapped tiles in a tiled resource. If any values were taken from an unmapped tile, CheckAccessFullyMapped returns FALSE.

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

GatherCmpBlue methods

TextureCube