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Description
Description
Right now the MDI ranges are not compacted (having the drawcalls with 0 instances removed).
But the DrawIndirectAllocator and all the resources in on the C++ side are already setup for this
Solution proposal
An additional Dispatch (direct, cause you can have a list of MDIs up front) over the drawcalls that prefix sums their boolean instanceCount!=0u flag
Then another dispatch that scatter counting sorts them onto compressed buffer of DrawIndirect and updates the drawcount for an associated MDI.