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Add support for cylinders and capsules in editor vis

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This commit is contained in:
Steve Streeting 2022-04-07 15:52:28 +01:00
parent 5eb2f2b786
commit 3a42320158
4 changed files with 150 additions and 0 deletions
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27
Source/StevesUEHelpers/Private/StevesDebugRenderSceneProxy.cpp
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@ -33,6 +33,33 @@ void FStevesDebugRenderSceneProxy::GetDynamicMeshElements(const TArray<const FSc
C.Radius, C.NumSegments,
C.Color, SDPG_Foreground);
}
// Draw Cylinders (properly! superclass ignores transforms)
for (const auto& C : CylindersImproved)
{
::DrawWireCylinder(PDI,
C.Centre,
C.X,
C.Y,
C.Z,
C.Color,
C.Radius,
C.HalfHeight,
C.NumSegments,
SDPG_Foreground);
}
for (const auto& C : CapsulesImproved)
{
::DrawWireCapsule(PDI,
C.Location,
C.X,
C.Y,
C.Z,
C.Color,
C.Radius,
C.HalfHeight,
16,
SDPG_Foreground);
}
}
}
}

46
Source/StevesUEHelpers/Private/StevesEditorVisComponent.cpp
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@ -76,6 +76,34 @@ FPrimitiveSceneProxy* UStevesEditorVisComponent::CreateSceneProxy()
Ret->Boxes.Add(FStevesDebugRenderSceneProxy::FDebugBox(
DBox, Box.Colour, CombinedXForm));
}
for (auto& Cylinder : Cylinders)
{
// Apply local rotation first then parent transform
const FTransform CombinedXForm = FTransform(Cylinder.Rotation, Cylinder.Location) * XForm;
const float HalfH = Cylinder.Height * 0.5f * CombinedXForm.GetScale3D().Z;
const float R = Cylinder.Radius * CombinedXForm.GetScale3D().Z;
const FVector Centre = CombinedXForm.TransformPosition(FVector::ZeroVector);
const FVector LocalX = CombinedXForm.TransformVectorNoScale(FVector::ForwardVector);
const FVector LocalY = CombinedXForm.TransformVectorNoScale(FVector::RightVector);
const FVector LocalZ = CombinedXForm.TransformVectorNoScale(FVector::UpVector);
Ret->CylindersImproved.Add(FStevesDebugRenderSceneProxy::FDebugCylinder(
Centre, LocalX, LocalY, LocalZ, R, HalfH, 16, Cylinder.Colour));
}
for (auto& Capsule : Capsules)
{
// Apply local rotation first then parent transform
const FTransform CombinedXForm = FTransform(Capsule.Rotation, Capsule.Location) * XForm;
const float HalfH = Capsule.Height * 0.5f * CombinedXForm.GetScale3D().Z;
const float R = Capsule.Radius * CombinedXForm.GetScale3D().Z;
const FVector Position = CombinedXForm.TransformPosition(FVector::ZeroVector);
const FVector LocalX = CombinedXForm.TransformVectorNoScale(FVector::ForwardVector);
const FVector LocalY = CombinedXForm.TransformVectorNoScale(FVector::RightVector);
const FVector LocalZ = CombinedXForm.TransformVectorNoScale(FVector::UpVector);
Ret->CapsulesImproved.Add(FStevesDebugRenderSceneProxy::FCapsule(
Position, R,
LocalX, LocalY, LocalZ,
HalfH, Capsule.Colour));
}
return Ret;
@ -120,6 +148,24 @@ FBoxSphereBounds UStevesEditorVisComponent::CalcBounds(const FTransform& LocalTo
DBox = DBox.TransformBy(BoxXForm);
B = B + FBoxSphereBounds(DBox);
}
for (auto& Cylinder : Cylinders)
{
FVector HalfSize = FVector(Cylinder.Radius, Cylinder.Radius, Cylinder.Height * 0.5f);
FBox DBox(-HalfSize, HalfSize);
// Apply local rotation only, world is done later
FTransform XForm = FTransform(Cylinder.Rotation, Cylinder.Location);
DBox = DBox.TransformBy(XForm);
B = B + FBoxSphereBounds(DBox);
}
for (auto& Capsule : Capsules)
{
FVector HalfSize = FVector(Capsule.Radius, Capsule.Radius, Capsule.Height * 0.5f + Capsule.Radius * 2.f);
FBox DBox(-HalfSize, HalfSize);
// Apply local rotation only, world is done later
FTransform XForm = FTransform(Capsule.Rotation, Capsule.Location);
DBox = DBox.TransformBy(XForm);
B = B + FBoxSphereBounds(DBox);
}
return B.TransformBy(LocalToWorld);
}

27
Source/StevesUEHelpers/Public/StevesDebugRenderSceneProxy.h
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@ -70,6 +70,33 @@ public:
FColor Color;
};
/// Replacement for FWireCylinder because that's garbage and doesn't reflect the component transform
struct FDebugCylinder
{
FDebugCylinder(const FVector &InCentre, const FVector& InX, const FVector& InY, const FVector& InZ, const float InRadius, const float InHalfHeight, int InNumSegments, const FColor &InColor) :
Centre(InCentre),
X(InX), Y(InY), Z(InZ),
Radius(InRadius),
HalfHeight(InHalfHeight),
NumSegments(InNumSegments),
Color(InColor)
{
}
FVector Centre;
FVector X;
FVector Y;
FVector Z;
float Radius;
float HalfHeight;
int NumSegments;
FColor Color;
};
TArray<FDebugCircle> Circles;
TArray<FDebugArc> Arcs;
TArray<FDebugCylinder> CylindersImproved; // Because we need our own
TArray<FCapsule> CapsulesImproved; // Because we need our own
};

50
Source/StevesUEHelpers/Public/StevesEditorVisComponent.h
View File

@ -195,7 +195,53 @@ struct STEVESUEHELPERS_API FStevesEditorVisBox
}
};
USTRUCT(BlueprintType)
struct STEVESUEHELPERS_API FStevesEditorVisCylinder
{
GENERATED_BODY()
/// Location relative to component
UPROPERTY(EditAnywhere)
FVector Location;
/// Height of cylinder
UPROPERTY(EditAnywhere)
float Height;
/// Radius of cylinder
UPROPERTY(EditAnywhere)
float Radius;
/// Rotation relative to component
UPROPERTY(EditAnywhere)
FRotator Rotation;
/// The colour of the line render
UPROPERTY(EditAnywhere)
FColor Colour;
FStevesEditorVisCylinder(const FVector& InLocation, float InHeight, float InRadius, const FRotator& InRot,
const FColor& InColour) :
Location(InLocation),
Height(InHeight),
Radius(InRadius),
Rotation(InRot),
Colour(InColour)
{
}
FStevesEditorVisCylinder():
Location(FVector::ZeroVector),
Height(50),
Radius(10),
Rotation(FRotator::ZeroRotator),
Colour(FColor::White)
{
}
};
USTRUCT(BlueprintType)
struct STEVESUEHELPERS_API FStevesEditorVisCapsule : public FStevesEditorVisCylinder
{
GENERATED_BODY()
};
/**
*
* A component that solely exists to provide arbitrary editor visualisation when not selected.
@ -227,6 +273,10 @@ public:
TArray<FStevesEditorVisSphere> Spheres;
UPROPERTY(EditAnywhere, BlueprintReadWrite)
TArray<FStevesEditorVisBox> Boxes;
UPROPERTY(EditAnywhere, BlueprintReadWrite)
TArray<FStevesEditorVisCylinder> Cylinders;
UPROPERTY(EditAnywhere, BlueprintReadWrite)
TArray<FStevesEditorVisCapsule> Capsules;
UStevesEditorVisComponent(const FObjectInitializer& ObjectInitializer);