As you know, separate texture sampler like Texture2D and SamplerState in shader, can use SHADER_PARAMETER_RDG_TEXTURE and SHADER_PARAMETER_SAMPLER to bind in cpp, but any combined sampler(like sampler2D in glsl) defined in UE4/UE5?
Or any reason not to use them? Suppose it would be more helpful if we can define half precision for those combined samplers