- FMeshSceneAdapter updates
- if bThickenThinMeshes is enabled, then all instance meshes are converted to DynamicMesh and decomposed to find non-closed regions. Those regions are uniqued into separate meshes. The remaining closed geometry is separated out and kept as instanced.
- various utility functions added to support above
- previous code to explicitly 'thicken' open meshes into solids is removed. Instead unsigned distance is used to determine inside/outside and generate a 1/0 winding number
- instances are now sorted into an octree to speed up winding number evaluations
- If all meshes are closed (or effectively closed via above, ie will return integer winding number) then winding number query can early-out as soon as it finds a non-zero value
- Add hard-normals options in IGeometryProcessing_ApproximateActors (not exposed in MergeActors tool options yet)
- Added hard-normal callucation to ApproximateActorsImpl, and additional profiling
- Allow specification of actual ECollisionTraceFlag options in CreateStaticMeshUtil, instead of just a boolean
- Add FSparseDynamicOctree3::ContainmentQueryCancellable() variant that can early-exit
#rb none
#rnx
#jira none
#preflight 60a686274c320300018d3841
#ROBOMERGE-SOURCE: CL 16410125 in //UE5/Private-Frosty/...
#ROBOMERGE-BOT: STARSHIP (Private-Frosty -> Main) (v804-16311228)
[CL 16412542 by ryan schmidt in ue5-main branch]
- Add FImageAdapter, wraps TImageBuilder of different types and provides a consistent interface, so that other code doesn't need specializations for each image type
- FMeshSceneAdapter now supports the ability to detect and thicken "thin" meshes, by flattening the instances into unique mesh copies (generally necessary due to scaling). Can also now return statistics about the mesh scene, return a full flattened mesh (for debugging), and automatically generate a "closing mesh" that can help to cap off the base of mesh assemblies when trying to generate a solid/etc.
ModelingComponents:
- FWorldRenderCapture now writes via FImageAdapter instead of an Image4f
- FSceneCapturePhotoSet now stores less data for photo sets. BaseColor/Emissive/WorldNormal are 3f, Roughness/Specular/Metallic are 1f
- IApproximateActors and implementation now support optional base-capping, occluded mesh removal, geometric-tolerance simplification, thin mesh auth-thickening. Now creates MICs based on an input Material, instead of new Material. Added ability to emit a flattened debug mesh, and print debug info.
MergeActors:
- Expose above improvements to IApproximateActors
#rb none
#rnx
#jira none
#preflight 609ef005f6c6e3000144c5e2
[CL 16338550 by Ryan Schmidt in ue5-main branch]
Add GeometryProcessingAdapters module to MeshModelingToolset, this is an Editor-only module that implements GeometryProcessingInterfaces APIs
Add ApproximateActors implementation in GeometryProcessingAdapters that uses GeometryProcessing (FastWindingNumber / MeshMorphology / Simplify / UVGen / Tangents) and a new material-baking process based on render captures to generate a new StaticMesh Asset / Material / Textures that approximate the input Actor set.
#rb none
#rnx
#jira none
#preflight 608b25ced4026b0001cbe9c4
[CL 16162961 by Ryan Schmidt in ue5-main branch]
