- Add UE::ToolTarget::CommitMaterialSetUpdate() and ::CommitDynamicMeshUpdate(). ::GetDynamicMeshCopy() can now return tangents if requested.
- Add IMeshDescriptionProvider::CalculateAutoGeneratedAttributes(). Default implementation does nothing, UStaticMeshComponentToolTarget implementation initializes auto-generated MeshDescription attributes. Used in ::GetDynamicMeshCopy() to get tangents (but requires a MeshDescription copy).
- Clean up handling of Tangents in Simple/OctreeDynamicMeshComponent. Add local MakeTangentsFunc() to generate the Tangents lambda, handle different cases and no-tangents fallbacks consistently.
- UDynamicMesh: add optional info arguments to EditMesh() and ChangeInfo struct. Add support for deferring change events from Edit funcs.
- Remove UBaseDynamicMeshComponent::InitializeMesh(), ::Bake() APIs, and add ::SetMesh(). Implement in Simple/Octree implementations, update all Tools that used those APIs.
- Add USimpleDynamicMeshComponent::ProcessMesh(), EditMesh(). These are now the preferred ways to read/write mesh.
- Update USimpleDynamicMeshComponent tangents handling. Externally-computed tangents are now taken directly from the FDynamicMesh3 attribute set. Autogenerated tangents are still computed and stored in an internal FMeshTangentsf, but this is no longer exposed for external updates.
- Remove UPreviewMesh pass-through functions for Tangents access, InitializeMesh() and Bake(). Add ProcessMesh()
- Update all affected Tools. In most cases these Tools have also been converted to use ModelingToolTargetUtil functions, instead of direct ToolTarget interface casting.
#rb none
#rnx
#jira none
#preflight 60c3e71d3e1b3c00015668af
[CL 16650666 by Ryan Schmidt in ue5-main branch]
- add new UModelingObjectsCreationAPI and associated data structures, provides abstract API for creating mesh and texture objects from Tools that is not specifically tied to StaticMesh Actors/Assets
- new helper functions in UE::Modeling:: namespace to simplify usage of an implementation of this API registered in a ContextObjectStore
- add new UEditorModelingObjectsCreationAPI implementation of above, supports hooks for higher level to provide custom paths
- add ModelingModeAssetUtils.h, provides several functions in UE::Modeling:: namespace to be used to implement those hooks (various existing path-determination code is moved here)
- ModelingToolsEditorMode now registers an instance of UEditorModelingObjectsCreationAPI in ContextObjectStore and connects up callbacks to these path functions
- AssetGenerationUtil functions and ModelingModeAssetAPI deleted
- All Tools that previously used IToolsContextAssetAPI updated to use this new system
#rb jimmy.andrews
#rnx
#jira none
#preflight 60b7c2ddae46a1000162729b
[CL 16538450 by Ryan Schmidt in ue5-main branch]
- New UInteractiveToolCameraFocusAPI UInterface defines functions a Tool can implement to publish its ability to provide a focus-box and focus-point
- ModelingMode uses this API to customize behavior. Box-focus (f hotkey) will now always focus on Tool-provided focus-box if available. Point-focus (c hotkey) will focus on nearer of world-hit and Tool focus-point.
- Default implementations for PrimitiveComponentToolTarget in SingleSelectionTool and MultiSelectionTool
- Custom focus-box implementations for PolyEdit-derived and TriSelect-derived tools, to focus on active selection if available
- Custom focus-point implementations for MeshSurfacePointTool
#rnx
#jira none
[CL 16246252 by Ryan Schmidt in ue5-main branch]
MeshSelectionTool: enable new decomposition support to improve painting performance on large meshes. Fix code that was doing repeated linear searches to remove elements from a potentially-very-large array. Make brush-ROI tri centroid point rendering optional.
#rb jimmy.andrews
#rnx
#jira none
[CL 15175542 by Ryan Schmidt in ue5-main branch]
#rb none
#rnx
#ROBOMERGE-SOURCE: CL 12908995 via CL 12908996 via CL 12909001
#ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v682-12900288)
[CL 12909003 by ryan schmidt in Main branch]
Problem is that during remesh passes the affected triangle set can expand (due to splits/collapses on ROI boundary) and our tracking of it is not perfect. Remesher now tells ChangeTracker before it modifies an edge, rather than Sculpt tool trying to predict set of modified triangles up front.
In theory this allows for smaller changes, because often only a subset of triangles are modified. However ChangeTracker currently only emits modified vertices as part of modified triangles. So we still need to save the full triangle ROI. Made several MeshChangeTracker functions protected for now, because they cannot be used externally due to this limitation. Updated call sites to those functions (which were likely also buggy).
#rb jimmy.andrews
#rnx
#jira none
#ROBOMERGE-SOURCE: CL 12459928 in //UE4/Release-4.25/... via CL 12459930 via CL 12459991
#ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v672-12450963)
[CL 12460009 by ryan schmidt in Main branch]
#jira UE-90972
#rb none
#rnx
#ROBOMERGE-SOURCE: CL 12358201 in //UE4/Release-4.25/... via CL 12358202
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v671-12333473)
[CL 12358207 by jimmy andrews in Main branch]
- fix broken sculpt material that went to white in many cases, replace with diffuse shading and rim light in Emissive channel / unlit texture
- add image-based sculpt materials provided by techart, expose custom variant that allows user-defined shader image
- make flat shading optional in view settings, for relevant shaders
- reorganize properties and update tooltips to be more informative
- fix broken Falloff support and expose in property set, display in brush highlight. Make this separately exposable in BaseBrush property set since we don't need Strength.
- add viewpoint-based Sculpt and Plane brush modes
- fix brush preview location when in hover, was not respecting target surface setting
#rb none
#rnx
#jira none
[FYI] JeanSebastien.Guay
#ROBOMERGE-SOURCE: CL 12164804 in //UE4/Release-4.25/... via CL 12164806
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v661-12148976)
[CL 12164813 by ryan schmidt in Main branch]
#rb none
#rnx
#jira none
#ROBOMERGE-SOURCE: CL 12113495 in //UE4/Release-4.25/... via CL 12113506
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v657-12064184)
[CL 12113515 by ryan schmidt in Main branch]
#rb none
#rnx
#jira UE-84211
#ROBOMERGE-SOURCE: CL 12026998 in //UE4/Release-4.25/... via CL 12027009
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v656-11643781)
[CL 12049347 by ryan schmidt in Main branch]
