This CL was reviewed here: https://p4-swarm.epicgames.net/reviews/26051575 but needs to be merged into //Fortnite/Release-26.00, not //Fortnite/Main
#jira UE-183457
#rb ryan.schmidt, nathan.mitchell
[CL 26180658 by matija kecman in ue5-main branch]
Add DynamicMeshSelector::UpdateAfterGeometryEdit API. StaticMeshSelector implementation updates static mesh after an Edit instead of emitting MeshChange on temporary DynamicMesh.
Delete and Retriangulate Commands now use this API instead of directly emitting transaction, so now these commands work properly on Static Meshes.
FStaticMeshComponentSelectorFactory::CanBuildForTarget now only allows UStaticMeshComponent specifically, filtering out subclasses. This is not ideal but I don't know what else we can do for now, there are many subclasses like ISMC, SplineMeshComponent, etc, that will not work w/ the Selection system. Also now filtering out Engine assets and cooked assets.
ModelingToolsEditorMode now listens for blueprint pre-compiles, and when this occurs, clears the active selection and selection targets. This is necessary because if the selection Component was part of a BP, on recompile it is re-instanced and the old pointer goes stale. Possibly can handle this better or at a more granular level, but clearing the selection is safest. This currently results in things not being undoable because the FChange transactions are on the "old" UDynamicMesh that no longer exists.
UModelingToolsEditorMode::UpdateSelectionManagerOnEditorSelectionChange now does a more thorough job of inspecting the current Actor/Component selection to find Components that could work w/ the selection system.
#rb lonnie.li
[CL 26133067 by ryan schmidt in ue5-main branch]
This tool mostly encapsulates the basic collision editing behaviors found within the Static Mesh Editor, but exists as a tool within Modeling Mode to work along side existing collision tools, such as Collision to Mesh and Mesh to Collision.
Initial features include:
* Support for selecting and transforming collision primitives, including primitive aware transforms (such as explicit length and radius controls on capsule shapes).
* Adding new simple shapes (spheres, boxes, and capsules)
* Duplicating existing shapes
* Deleting some or all collision geometry
#rb Ryan.Schmidt
#jira UE-182341
[CL 26066042 by nathan mitchell in ue5-main branch]
- Fix conversion sometimes making degenerate tris and firing an ensure.
- Fix volume conversion sometimes creating cracks in volumes when dealing with non-convex faces (by deleting necessary colinear verts)
- Make simplification preserve group boundaries when asked.
- Remove colinear verts along group boundaries without losing boundaries when preserving groups.
- Break up faces that have holes into convexes rather than emitting per-triangle faces.
- Make mesh to volume tool use same path for conversion as tool targets, and add controls for preserving groups and simplifying
- Revert to ear clipping if delaunay triangulation fails in converting back from volume
#rb Jimmy.Andrews
#jira UE-173272, UE-152032
#prelfight 6470ccbf5b1dc793b715d66b
[CL 26002669 by semion piskarev in ue5-main branch]
Added a CreateNewActor function to EditorModelingObjectsCreationAPI which finds a factory capable of producing actors of the same type as a provided template actor to create the new actor without needing to create entirely new assets as would have been necessary with the existing functions in EditorModelingObjectsCreationAPI.
#rb lonnie.li
[CL 25963642 by nickolas drake in ue5-main branch]
Add UMeshVertexPaintTool, subclass of UMeshSculptToolBase. Paints Mesh Vertex Colors (ie Asset colors, not instance colors). Provides many interactions similar to GroupPaintTool (ie brush paint, click-to-fill, poly-lasso, volumetric vs connected brush ROI, UV/Normal seams, visibility filter, etc. Supports painting split-vertex colors, or smooth per-vertex colors (bHardEdges setting). Supports various brush types (paint, smooth, "blend" = average split values). Painting supports custom color-blend modes (ie "over" mode, does stroke compositing like pixel painting tools). Can show vertex color under cursor. Supports showing vertex color or original materials. Ability to filter channels for visibility/painting. Actions buttons to fill current-color/black/white. "Utility" panel for common operations (blend all seams, fill channels, invert channels, copy channel to channel, swap channels, copy from weight map, copy to all/single LOD).
Internally supports seam painting by splitting all colors on startup (ie to create per-triangle-vertex color) and then welding on shutdown.
Current auto-RGBA conversions are inverted, internally the tool works in Linear colors, preview DynamicMeshComponent is configured to convert to SRGB in color buffers (similar to static mesh).
Vertex color brush ops added in MeshVertexPaintBrushOps.h, deriving from new FMeshVertexColorBrushOp. Various color-blending functions implemented there, should be moved to centralized place eventually.
Expose MeshVertexPaintTool in ModelingMode
Add FModelingToolsColorChannelFilter, for toggling R/G/B/A filtering state, and a details customization that shows these four checkboxes in a horizontal row. Use in MeshVertexPaintTool, Register in Modeling Mode.
#rb none
#preflight 646cfc50205f5d23d53f80f1
[CL 25592458 by ryan schmidt in ue5-main branch]
This change also extends UModelingObjectsCreationAPI to support materials by duplicating a given material
#rb ryan.schmidt
#jira UE-182349
#preflight 6467649a573c1da15838e005
[CL 25548119 by matija kecman in ue5-main branch]
Use the new two-sided material in the cloth weight map paint tool so that we can paint on the "back" side of the 2D panels
#rb ryan.schmidt
#preflight 645beaef8b3e445e810aa6ef
[CL 25414150 by tyson brochu in ue5-main branch]
- Add a Gradient Interaction Type. The user selects "high" and "low" vertices and a gradient is automatically computed between them
#jira UE-183874
#rb jimmy.andrews
#preflight 644805ccd07064cbaea8ce5a
[CL 25183697 by tyson brochu in ue5-main branch]
Selection enable/disable can now be toggled dynamically via mode settings popup, toolbar will hide/show based on current setting state.
GeometrySelectionManager is now always created. New Mode function GetMeshElementSelectionSystemEnabled() indicates whether selection is currently enabled, when disabled active targets will not be tracked.
Selection Toolbar icons now are disabled while in a Tool (as selection system is not active then)
New Static Mesh Assets and Volumes created using Modeling Tools now default to unlocked, via new functions on StaticMeshSelector / Volume Selector.
Unlocked Asset/Volume sets are cleared on level change
Added cvars modeling.Selection.EnableStaticMeshLocking and modeling.Selection.EnableVolumeLocking which can be used to fully disable lock-ability of StaticMesh/Volume (default true)
shortened some names of tool group tabs, as labels are now shown and long names make the bar wider
Added a few toast notifications for when setting state changes require a mode or editor restart.
#rb none
#preflight 64426fabb14f1faacff6921d
[CL 25149511 by ryan schmidt in ue5-main branch]
