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make edit pivot tool use the mesh element selection (if available) as an initial pivot point

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#rb David.Hill

[CL 33207461 by jimmy andrews in ue5-main branch]
This commit is contained in:
jimmy andrews
2024-04-24 14:35:33 -04:00
parent cccbc8e4f2
commit def884c88d
2 changed files with 43 additions and 0 deletions
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33
Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Private/EditPivotTool.cpp
View File

@@ -22,6 +22,7 @@
#include "Components/InstancedStaticMeshComponent.h"
#include "Engine/World.h"
#include "Selection/StoredMeshSelectionUtil.h"
#include "TargetInterfaces/MeshDescriptionCommitter.h"
#include "TargetInterfaces/MeshDescriptionProvider.h"
#include "TargetInterfaces/PrimitiveComponentBackedTarget.h"
@@ -43,6 +44,33 @@ UMultiSelectionMeshEditingTool* UEditPivotToolBuilder::CreateNewTool(const FTool
return NewObject<UEditPivotTool>(SceneState.ToolManager);
}
void UEditPivotToolBuilder::InitializeNewTool(UMultiSelectionMeshEditingTool* NewTool, const FToolBuilderState& SceneState) const
{
const TArray<TObjectPtr<UToolTarget>> Targets = SceneState.TargetManager->BuildAllSelectedTargetable(SceneState, GetTargetRequirements());
NewTool->SetTargets(Targets);
NewTool->SetWorld(SceneState.World);
if (Targets.Num() == 1)
{
if (UEditPivotTool* NewPivotTool = Cast<UEditPivotTool>(NewTool))
{
// if there is an element selection, use its frame origin as an initial pivot
FFrame3d Frame;
FAxisAlignedBox3d Bounds;
bool bIsElementSelection;
if (GetCurrentSelectionWorldFrameBounds(SceneState, Frame, Bounds, bIsElementSelection))
{
if (bIsElementSelection)
{
FTransform LocalToWorld = UE::ToolTarget::GetLocalToWorldTransform(Targets[0]);
LocalToWorld.SetTranslation(Frame.Origin);
NewPivotTool->SetInitialPivot(LocalToWorld);
}
}
}
}
}
@@ -91,6 +119,11 @@ void UEditPivotTool::Setup()
Precompute();
if (bHasCustomInitialPivot)
{
ActiveGizmos[0].TransformGizmo->SetNewGizmoTransform(InitialPivot);
}
FText AllTheWarnings = LOCTEXT("EditPivotWarning", "WARNING: This Tool will Modify the selected StaticMesh Assets! If you do not wish to modify the original Assets, please make copies in the Content Browser first!");
// detect and warn about any meshes in selection that correspond to same source data

10
Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Public/EditPivotTool.h
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@@ -27,6 +27,7 @@ class MESHMODELINGTOOLSEXP_API UEditPivotToolBuilder : public UMultiSelectionMes
GENERATED_BODY()
public:
virtual UMultiSelectionMeshEditingTool* CreateNewTool(const FToolBuilderState& SceneState) const override;
virtual void InitializeNewTool(UMultiSelectionMeshEditingTool* NewTool, const FToolBuilderState& SceneState) const override;
};
@@ -194,9 +195,18 @@ public:
virtual void RequestAction(EEditPivotToolActions ActionType);
void SetInitialPivot(FTransform3d InInitialPivot)
{
bHasCustomInitialPivot = true;
InitialPivot = InInitialPivot;
}
protected:
TArray<int> MapToFirstOccurrences;
FTransform3d InitialPivot = FTransform3d::Identity;
bool bHasCustomInitialPivot = false;
FTransform3d Transform;
UE::Geometry::FAxisAlignedBox3d ObjectBounds;
UE::Geometry::FAxisAlignedBox3d WorldBounds;