ryan schmidt 068c9d68a5 CombineMeshInstances: add support for alternative to Voxel LOD, based on planar sweep. ...

Add ECoarseApproximationStrategy to IGeometryProcessing_CombineMeshInstances, and FOptions.CoarseLODStrategy, as well as .CoarseApproximationDetailSize  (previously was hardcoded to 10 in impelmentation). Rename 'Voxel' to 'Coarse' in the Options struct.
Improve ComputeSweptSolidApproximation in CombineMeshInstancesImpl - 'Square' offset was a chamfer, but generally we want a Miter, with Miter cut threshold set to diagonal length.
Add ComputeBestFullProjectionMesh in CombineMeshInstancesImpl, computes swept-solid approximation along all 3 axes and selects the one w/ lowest geometric deviation
BuildCombinedMesh now supports using SweptPlanarProjection instead of Voxel approximation, or trying both and selecting the one w/ lower geometric deviation.
Disabled coplanar merging and planar retriangulation when doing hidden removal of voxel LODs (was unintentionally doing this)
Update internal usage

#rb none
#preflight 64791efee319748a836e1be5

[CL 25762477 by ryan schmidt in ue5-main branch]

2023-06-02 11:23:19 -04:00

..

Private

CombineMeshInstances: Add support for merging faces after removing hidden faces. Provide a mechanism for external calling code to prevent this merging based on external "Grouping ID" (eg color index, etc). Add CVar geometry.CombineInstances.Verbose, when enabled, multi-threaded LOD generation is disabled and various log info is printed during the process.

2023-03-07 15:37:16 -05:00

Public

CombineMeshInstances: add support for alternative to Voxel LOD, based on planar sweep.

2023-06-02 11:23:19 -04:00

GeometryProcessingInterfaces.Build.cs

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