TPCGValueRange

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TPCGValueRange is used to represent a list of InNumElements values but those values are provided by an underlying TStridedView which can have a different number of values.

Most common use case is where we have N Points, a TPCGValueRange might be used to iterate through all the Point Colors.

For UPCGPointData, all Points have a memory allocation representing those Colors so the PCGValueRange number of elements will match the underlying TStridedView number of elements

but if we have another type of Point data which doesn't allocate Colors by default and just uses a single value, We can still use a TPCGValueRange with the same number of elements with an underlying TStridedView with a single element.

This allows us to write processing functions that operate on ranges without knowledge of the underlying memory layout

The range index will be modulated against the underlying TStridedView num elements.

ex:

Range with 5 Elements & StridedView of 1 Element Range Indices [0, 1, 2, 3 ,4] StridedView Indices [0, 0, 0, 0, 0]

Range with 5 Elements & StridedView of 3 Element(s) Range Indices [0, 1, 2, 3, 4] StridedView Indices [0, 1, 2, 0, 1]

Range with 5 Elements & StridedView of 5 Elements(s) or more Range Indices [0, 1, 2, 3, 4] StridedView Indices [0, 1, 2, 3, 4]

Note: For multithreaded usage it is preferred to declare the ranges in each thread so that the 'StubValue' is thread local

Syntax

template<typename ElementType, typename ViewType>  
class TPCGValueRange  
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template<typename ElementType, typename ViewType> class TPCGValueRange

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