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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.
float4 GatherCmpRed(
in SamplerComparisonState s,
in float3 location,
in float compare_value,
in int2 offset
);
-
s [in]
-
Type: SamplerComparisonState
The zero-based sampler index.
-
location [in]
-
Type: float3
The sample coordinates (u,v).
-
compare_value [in]
-
Type: float
A value to compare each against each sampled value.
-
offset [in]
-
Type: int2
An offset that is applied to the texture coordinate before sampling.
Type: float4
A four-component value, each component is the result of a per-component comparison.
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 |