danny couture 7119f1a0d3 Optimize convex hull computation ...

- Fix a comparison bug in VHACD Volume::Voxelize causing the number of voxels to explode when x == y and z < x.
 - Activate axis alignment in VHACD to fix huge voxels being created due to an elongated part being placed diagonally in the voxel space causing precision problems.
 - Make the data ordering in vhacdVolume GetVoxel more cache friendly toward loops iterating over (i,j,k) in that order.
 - Parallelize bulk convex hull computation and make it available in blueprint.
 - Replace standard allocator with our own (TBB) so that the parallel code actually runs faster instead of locking on allocs.
 - Add an overridable task runner interface in VHACD to reuse our task pool instead of spawning threads for each async task.
 - Add an overridable profiler interface in VHACD so we can add Insights tags inside VHACD.
 - Fix convex hull computation progress not being shown when run inside a dataprep operation.
 - Rewrite voxel flood fill algorithm toward cache friendliness and get rid of extra data structure causing high memory usage on large voxels.
 - Recompile VHACD using clang/llvm

 Results for running a generic convex hull dataprep operation on all meshes
 - 305m [at] 20GB RAM -> 2m25s [at] 6GB RAM on 7628 meshes (DATASET-0019a)
 - 486m [at] 49GB RAM -> 3m33s [at] 9GB RAM on 5506 meshes (DATASET-0008a)

Tested on Windows/Mac/Linux

From dev-enterprise[at]11497987

#jira UEENT-3026
#rb Benn.Gallagher, Julien.St-Jean

#ROBOMERGE-SOURCE: CL 11499409 in //UE4/Release-4.25/...
#ROBOMERGE-BOT: RELEASE (Release-4.25 -> Release-4.25Plus) (v654-11333218)

[CL 11499434 by danny couture in 4.25-Plus branch]

2020-02-18 10:21:00 -05:00

..

Config

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Source/EditorScriptingUtilities

Optimize convex hull computation

2020-02-18 10:21:00 -05:00

EditorScriptingUtilities.uplugin

Copying //UE4/Dev-VR to Main (//UE4/Main)

2019-06-10 12:22:13 -04:00