compareFunction
The sampler comparison function used when performing a sample compare operation on a depth texture.
Declaration
var compareFunction: MTLCompareFunction { get set }Discussion
The default value is MTLCompareFunction.never.
The MTLFeatureSet.iOS_GPUFamily3_v1 and MTLFeatureSet.iOS_GPUFamily1_v1 feature sets allow you to define a framework-side sampler comparison function for an MTLSamplerState instance. All feature sets support shader-side sampler comparison functions, as described in the Metal Shading Language Specification.