Jolt Physics
A multi core friendly Game Physics Engine
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ScaledShape Class Referencefinal

A shape that scales a child shape in local space of that shape. The scale can be non-uniform and can even turn it inside out when one or three components of the scale are negative. More...

#include <ScaledShape.h>

Inheritance diagram for ScaledShape:
DecoratedShape Shape RefTarget< Shape > NonCopyable

Public Member Functions

JPH_OVERRIDE_NEW_DELETE ScaledShape ()
 Constructor.
 
 ScaledShape (const ScaledShapeSettings &inSettings, ShapeResult &outResult)
 
 ScaledShape (const Shape *inShape, Vec3Arg inScale)
 Constructor that decorates another shape with a scale.
 
Vec3 GetScale () const
 Get the scale.
 
virtual Vec3 GetCenterOfMass () const override
 All shapes are centered around their center of mass. This function returns the center of mass position that needs to be applied to transform the shape to where it was created.
 
virtual AABox GetLocalBounds () const override
 Get local bounding box including convex radius, this box is centered around the center of mass rather than the world transform.
 
virtual AABox GetWorldSpaceBounds (Mat44Arg inCenterOfMassTransform, Vec3Arg inScale) const override
 
virtual float GetInnerRadius () const override
 
virtual MassProperties GetMassProperties () const override
 Calculate the mass and inertia of this shape.
 
virtual TransformedShape GetSubShapeTransformedShape (const SubShapeID &inSubShapeID, Vec3Arg inPositionCOM, QuatArg inRotation, Vec3Arg inScale, SubShapeID &outRemainder) const override
 
virtual Vec3 GetSurfaceNormal (const SubShapeID &inSubShapeID, Vec3Arg inLocalSurfacePosition) const override
 
virtual void GetSupportingFace (const SubShapeID &inSubShapeID, Vec3Arg inDirection, Vec3Arg inScale, Mat44Arg inCenterOfMassTransform, SupportingFace &outVertices) const override
 
virtual void GetSubmergedVolume (Mat44Arg inCenterOfMassTransform, Vec3Arg inScale, const Plane &inSurface, float &outTotalVolume, float &outSubmergedVolume, Vec3 &outCenterOfBuoyancy JPH_IF_DEBUG_RENDERER(, RVec3Arg inBaseOffset)) const override
 
virtual void Draw (DebugRenderer *inRenderer, RMat44Arg inCenterOfMassTransform, Vec3Arg inScale, ColorArg inColor, bool inUseMaterialColors, bool inDrawWireframe) const override
 Draw the shape at a particular location with a particular color (debugging purposes)
 
virtual void DrawGetSupportFunction (DebugRenderer *inRenderer, RMat44Arg inCenterOfMassTransform, Vec3Arg inScale, ColorArg inColor, bool inDrawSupportDirection) const override
 Draw the results of the GetSupportFunction with the convex radius added back on to show any errors introduced by this process (only relevant for convex shapes)
 
virtual void DrawGetSupportingFace (DebugRenderer *inRenderer, RMat44Arg inCenterOfMassTransform, Vec3Arg inScale) const override
 Draw the results of the GetSupportingFace function to show any errors introduced by this process (only relevant for convex shapes)
 
virtual bool CastRay (const RayCast &inRay, const SubShapeIDCreator &inSubShapeIDCreator, RayCastResult &ioHit) const override
 
virtual void CastRay (const RayCast &inRay, const RayCastSettings &inRayCastSettings, const SubShapeIDCreator &inSubShapeIDCreator, CastRayCollector &ioCollector, const ShapeFilter &inShapeFilter={ }) const override
 
virtual void CollidePoint (Vec3Arg inPoint, const SubShapeIDCreator &inSubShapeIDCreator, CollidePointCollector &ioCollector, const ShapeFilter &inShapeFilter={ }) const override
 
virtual void CollideSoftBodyVertices (Mat44Arg inCenterOfMassTransform, Vec3Arg inScale, const CollideSoftBodyVertexIterator &inVertices, uint inNumVertices, int inCollidingShapeIndex) const override
 
virtual void CollectTransformedShapes (const AABox &inBox, Vec3Arg inPositionCOM, QuatArg inRotation, Vec3Arg inScale, const SubShapeIDCreator &inSubShapeIDCreator, TransformedShapeCollector &ioCollector, const ShapeFilter &inShapeFilter) const override
 
virtual void TransformShape (Mat44Arg inCenterOfMassTransform, TransformedShapeCollector &ioCollector) const override
 
virtual void GetTrianglesStart (GetTrianglesContext &ioContext, const AABox &inBox, Vec3Arg inPositionCOM, QuatArg inRotation, Vec3Arg inScale) const override
 
virtual int GetTrianglesNext (GetTrianglesContext &ioContext, int inMaxTrianglesRequested, Float3 *outTriangleVertices, const PhysicsMaterial **outMaterials=nullptr) const override
 
virtual void SaveBinaryState (StreamOut &inStream) const override
 Saves the contents of the shape in binary form to inStream.
 
virtual Stats GetStats () const override
 Get stats of this shape. Use for logging / data collection purposes only. Does not add values from child shapes, use GetStatsRecursive for this.
 
virtual float GetVolume () const override
 
virtual bool IsValidScale (Vec3Arg inScale) const override
 
virtual Vec3 MakeScaleValid (Vec3Arg inScale) const override
 
virtual AABox GetWorldSpaceBounds (Mat44Arg inCenterOfMassTransform, Vec3Arg inScale) const
 
AABox GetWorldSpaceBounds (DMat44Arg inCenterOfMassTransform, Vec3Arg inScale) const
 Get world space bounds including convex radius.
 
- Public Member Functions inherited from DecoratedShape
JPH_OVERRIDE_NEW_DELETE DecoratedShape (EShapeSubType inSubType)
 Constructor.
 
 DecoratedShape (EShapeSubType inSubType, const Shape *inInnerShape)
 
 DecoratedShape (EShapeSubType inSubType, const DecoratedShapeSettings &inSettings, ShapeResult &outResult)
 
const ShapeGetInnerShape () const
 Access to the decorated inner shape.
 
virtual bool MustBeStatic () const override
 Check if this shape can only be used to create a static body or if it can also be dynamic/kinematic.
 
virtual uint GetSubShapeIDBitsRecursive () const override
 Get the max number of sub shape ID bits that are needed to be able to address any leaf shape in this shape. Used mainly for checking that it is smaller or equal than SubShapeID::MaxBits.
 
virtual const ShapeGetLeafShape (const SubShapeID &inSubShapeID, SubShapeID &outRemainder) const override
 
virtual const PhysicsMaterialGetMaterial (const SubShapeID &inSubShapeID) const override
 Get the material assigned to a particular sub shape ID.
 
virtual uint64 GetSubShapeUserData (const SubShapeID &inSubShapeID) const override
 Get the user data of a particular sub shape ID. Corresponds with the value stored in Shape::GetUserData of the leaf shape pointed to by inSubShapeID.
 
virtual void SaveSubShapeState (ShapeList &outSubShapes) const override
 Outputs the shape references that this shape has to outSubShapes.
 
virtual void RestoreSubShapeState (const ShapeRefC *inSubShapes, uint inNumShapes) override
 Restore the shape references after calling sRestoreFromBinaryState. Note that the exact same shapes need to be provided in the same order as returned by SaveSubShapeState.
 
virtual Stats GetStatsRecursive (VisitedShapes &ioVisitedShapes) const override
 Volume of this shape (m^3). Note that for compound shapes the volume may be incorrect since child shapes can overlap which is not accounted for.
 
- Public Member Functions inherited from Shape
 Shape (EShapeType inType, EShapeSubType inSubType)
 Constructor.
 
 Shape (EShapeType inType, EShapeSubType inSubType, const ShapeSettings &inSettings, ShapeResult &outResult)
 
virtual ~Shape ()=default
 Destructor.
 
EShapeType GetType () const
 Get type.
 
EShapeSubType GetSubType () const
 
uint64 GetUserData () const
 User data (to be used freely by the application)
 
void SetUserData (uint64 inUserData)
 
AABox GetWorldSpaceBounds (DMat44Arg inCenterOfMassTransform, Vec3Arg inScale) const
 Get world space bounds including convex radius.
 
virtual void GetSubmergedVolume (Mat44Arg inCenterOfMassTransform, Vec3Arg inScale, const Plane &inSurface, float &outTotalVolume, float &outSubmergedVolume, Vec3 &outCenterOfBuoyancy, RVec3Arg inBaseOffset) const =0
 
ShapeResult ScaleShape (Vec3Arg inScale) const
 
virtual void SaveMaterialState (PhysicsMaterialList &outMaterials) const
 Outputs the material references that this shape has to outMaterials.
 
virtual void RestoreMaterialState (const PhysicsMaterialRefC *inMaterials, uint inNumMaterials)
 Restore the material references after calling sRestoreFromBinaryState. Note that the exact same materials need to be provided in the same order as returned by SaveMaterialState.
 
void SaveWithChildren (StreamOut &inStream, ShapeToIDMap &ioShapeMap, MaterialToIDMap &ioMaterialMap) const
 Save this shape, all its children and its materials. Pass in an empty map in ioShapeMap / ioMaterialMap or reuse the same map while saving multiple shapes to the same stream in order to avoid writing duplicates.
 
- Public Member Functions inherited from RefTarget< Shape >
 RefTarget ()=default
 Constructor.
 
 RefTarget (const RefTarget &)
 
 ~RefTarget ()
 assert no one is referencing us
 
void SetEmbedded () const
 
RefTargetoperator= (const RefTarget &)
 Assignment operator.
 
uint32 GetRefCount () const
 Get current refcount of this object.
 
void AddRef () const
 Add or release a reference to this object.
 
void Release () const
 
- Public Member Functions inherited from NonCopyable
 NonCopyable ()=default
 
 NonCopyable (const NonCopyable &)=delete
 
void operator= (const NonCopyable &)=delete
 

Static Public Member Functions

static void sRegister ()
 
- Static Public Member Functions inherited from Shape
static ShapeResult sRestoreFromBinaryState (StreamIn &inStream)
 Creates a Shape of the correct type and restores its contents from the binary stream inStream.
 
static ShapeResult sRestoreWithChildren (StreamIn &inStream, IDToShapeMap &ioShapeMap, IDToMaterialMap &ioMaterialMap)
 Restore a shape, all its children and materials. Pass in an empty map in ioShapeMap / ioMaterialMap or reuse the same map while reading multiple shapes from the same stream in order to restore duplicates.
 
- Static Public Member Functions inherited from RefTarget< Shape >
static int sInternalGetRefCountOffset ()
 INTERNAL HELPER FUNCTION USED BY SERIALIZATION.
 

Protected Member Functions

virtual void RestoreBinaryState (StreamIn &inStream) override
 This function should not be called directly, it is used by sRestoreFromBinaryState.
 

Additional Inherited Members

- Public Types inherited from Shape
using ShapeResult = ShapeSettings::ShapeResult
 
using SupportingFace = StaticArray< Vec3, 32 >
 Type definition for a supporting face.
 
using VisitedShapes = UnorderedSet< const Shape * >
 
using ShapeToIDMap = StreamUtils::ObjectToIDMap< Shape >
 
using IDToShapeMap = StreamUtils::IDToObjectMap< Shape >
 
using MaterialToIDMap = StreamUtils::ObjectToIDMap< PhysicsMaterial >
 
using IDToMaterialMap = StreamUtils::IDToObjectMap< PhysicsMaterial >
 
- Static Public Attributes inherited from Shape
static constexpr int cGetTrianglesMinTrianglesRequested = 32
 This is the minimum amount of triangles that should be requested through GetTrianglesNext.
 
static bool sDrawSubmergedVolumes = false
 Debug helper which draws the intersection between water and the shapes, the center of buoyancy and the submerged volume.
 
- Static Protected Member Functions inherited from Shape
static void sCollidePointUsingRayCast (const Shape &inShape, Vec3Arg inPoint, const SubShapeIDCreator &inSubShapeIDCreator, CollidePointCollector &ioCollector, const ShapeFilter &inShapeFilter)
 A fallback version of CollidePoint that uses a ray cast and counts the number of hits to determine if the point is inside the shape. Odd number of hits means inside, even number of hits means outside.
 
- Protected Attributes inherited from DecoratedShape
RefConst< ShapemInnerShape
 
- Protected Attributes inherited from RefTarget< Shape >
atomic< uint32mRefCount
 Current reference count.
 
- Static Protected Attributes inherited from RefTarget< Shape >
static constexpr uint32 cEmbedded
 A large value that gets added to the refcount to mark the object as embedded.
 

Detailed Description

A shape that scales a child shape in local space of that shape. The scale can be non-uniform and can even turn it inside out when one or three components of the scale are negative.

Constructor & Destructor Documentation

◆ ScaledShape() [1/3]

JPH_OVERRIDE_NEW_DELETE ScaledShape::ScaledShape ( )
inline

Constructor.

◆ ScaledShape() [2/3]

ScaledShape::ScaledShape ( const ScaledShapeSettings inSettings,
ShapeResult outResult 
)

◆ ScaledShape() [3/3]

ScaledShape::ScaledShape ( const Shape inShape,
Vec3Arg  inScale 
)
inline

Constructor that decorates another shape with a scale.

Member Function Documentation

◆ CastRay() [1/2]

void ScaledShape::CastRay ( const RayCast inRay,
const RayCastSettings inRayCastSettings,
const SubShapeIDCreator inSubShapeIDCreator,
CastRayCollector ioCollector,
const ShapeFilter inShapeFilter = { } 
) const
overridevirtual

Cast a ray against this shape. Allows returning multiple hits through ioCollector. Note that this version is more flexible but also slightly slower than the CastRay function that returns only a single hit. If you want the surface normal of the hit use GetSurfaceNormal(collected sub shape ID, inRay.GetPointOnRay(collected faction)).

Implements Shape.

◆ CastRay() [2/2]

bool ScaledShape::CastRay ( const RayCast inRay,
const SubShapeIDCreator inSubShapeIDCreator,
RayCastResult ioHit 
) const
overridevirtual

Cast a ray against this shape, returns true if it finds a hit closer than ioHit.mFraction and updates that fraction. Otherwise ioHit is left untouched and the function returns false. Note that the ray should be relative to the center of mass of this shape (i.e. subtract Shape::GetCenterOfMass() from RayCast::mOrigin if you want to cast against the shape in the space it was created). Convex objects will be treated as solid (meaning if the ray starts inside, you'll get a hit fraction of 0) and back face hits against triangles are returned. If you want the surface normal of the hit use GetSurfaceNormal(ioHit.mSubShapeID2, inRay.GetPointOnRay(ioHit.mFraction)).

Implements Shape.

◆ CollectTransformedShapes()

void ScaledShape::CollectTransformedShapes ( const AABox inBox,
Vec3Arg  inPositionCOM,
QuatArg  inRotation,
Vec3Arg  inScale,
const SubShapeIDCreator inSubShapeIDCreator,
TransformedShapeCollector ioCollector,
const ShapeFilter inShapeFilter 
) const
overridevirtual

Collect the leaf transformed shapes of all leaf shapes of this shape. inBox is the world space axis aligned box which leaf shapes should collide with. inPositionCOM/inRotation/inScale describes the transform of this shape. inSubShapeIDCreator represents the current sub shape ID of this shape.

Reimplemented from Shape.

◆ CollidePoint()

void ScaledShape::CollidePoint ( Vec3Arg  inPoint,
const SubShapeIDCreator inSubShapeIDCreator,
CollidePointCollector ioCollector,
const ShapeFilter inShapeFilter = { } 
) const
overridevirtual

Check if inPoint is inside this shape. For this tests all shapes are treated as if they were solid. Note that inPoint should be relative to the center of mass of this shape (i.e. subtract Shape::GetCenterOfMass() from inPoint if you want to test against the shape in the space it was created). For a mesh shape, this test will only provide sensible information if the mesh is a closed manifold. For each shape that collides, ioCollector will receive a hit.

Implements Shape.

◆ CollideSoftBodyVertices()

void ScaledShape::CollideSoftBodyVertices ( Mat44Arg  inCenterOfMassTransform,
Vec3Arg  inScale,
const CollideSoftBodyVertexIterator inVertices,
uint  inNumVertices,
int  inCollidingShapeIndex 
) const
overridevirtual

Collides all vertices of a soft body with this shape and updates SoftBodyVertex::mCollisionPlane, SoftBodyVertex::mCollidingShapeIndex and SoftBodyVertex::mLargestPenetration if a collision with more penetration was found.

Parameters
inCenterOfMassTransformCenter of mass transform for this shape relative to the vertices.
inScaleScale in local space of the shape (scales relative to its center of mass)
inVerticesThe vertices of the soft body
inNumVerticesThe number of vertices in inVertices
inCollidingShapeIndexValue to store in CollideSoftBodyVertexIterator::mCollidingShapeIndex when a collision was found

Implements Shape.

◆ Draw()

void ScaledShape::Draw ( DebugRenderer inRenderer,
RMat44Arg  inCenterOfMassTransform,
Vec3Arg  inScale,
ColorArg  inColor,
bool  inUseMaterialColors,
bool  inDrawWireframe 
) const
overridevirtual

Draw the shape at a particular location with a particular color (debugging purposes)

Implements Shape.

◆ DrawGetSupportFunction()

void ScaledShape::DrawGetSupportFunction ( DebugRenderer inRenderer,
RMat44Arg  inCenterOfMassTransform,
Vec3Arg  inScale,
ColorArg  inColor,
bool  inDrawSupportDirection 
) const
overridevirtual

Draw the results of the GetSupportFunction with the convex radius added back on to show any errors introduced by this process (only relevant for convex shapes)

Reimplemented from Shape.

◆ DrawGetSupportingFace()

void ScaledShape::DrawGetSupportingFace ( DebugRenderer inRenderer,
RMat44Arg  inCenterOfMassTransform,
Vec3Arg  inScale 
) const
overridevirtual

Draw the results of the GetSupportingFace function to show any errors introduced by this process (only relevant for convex shapes)

Reimplemented from Shape.

◆ GetCenterOfMass()

virtual Vec3 ScaledShape::GetCenterOfMass ( ) const
inlineoverridevirtual

All shapes are centered around their center of mass. This function returns the center of mass position that needs to be applied to transform the shape to where it was created.

Reimplemented from DecoratedShape.

◆ GetInnerRadius()

virtual float ScaledShape::GetInnerRadius ( ) const
inlineoverridevirtual

Returns the radius of the biggest sphere that fits entirely in the shape. In case this shape consists of multiple sub shapes, it returns the smallest sphere of the parts. This can be used as a measure of how far the shape can be moved without risking going through geometry.

Implements Shape.

◆ GetLocalBounds()

AABox ScaledShape::GetLocalBounds ( ) const
overridevirtual

Get local bounding box including convex radius, this box is centered around the center of mass rather than the world transform.

Implements Shape.

◆ GetMassProperties()

MassProperties ScaledShape::GetMassProperties ( ) const
overridevirtual

Calculate the mass and inertia of this shape.

Implements Shape.

◆ GetScale()

Vec3 ScaledShape::GetScale ( ) const
inline

Get the scale.

◆ GetStats()

virtual Stats ScaledShape::GetStats ( ) const
inlineoverridevirtual

Get stats of this shape. Use for logging / data collection purposes only. Does not add values from child shapes, use GetStatsRecursive for this.

Implements Shape.

◆ GetSubmergedVolume()

void ScaledShape::GetSubmergedVolume ( Mat44Arg  inCenterOfMassTransform,
Vec3Arg  inScale,
const Plane inSurface,
float &  outTotalVolume,
float &  outSubmergedVolume,
Vec3 &outCenterOfBuoyancy   JPH_IF_DEBUG_RENDERER, RVec3Arg inBaseOffset 
) const
overridevirtual

◆ GetSubShapeTransformedShape()

TransformedShape ScaledShape::GetSubShapeTransformedShape ( const SubShapeID inSubShapeID,
Vec3Arg  inPositionCOM,
QuatArg  inRotation,
Vec3Arg  inScale,
SubShapeID outRemainder 
) const
overridevirtual

Get the direct child sub shape and its transform for a sub shape ID.

Parameters
inSubShapeIDSub shape ID that indicates the path to the leaf shape
inPositionCOMThe position of the center of mass of this shape
inRotationThe orientation of this shape
inScaleScale in local space of the shape (scales relative to its center of mass)
outRemainderThe remainder of the sub shape ID after removing the sub shape
Returns
Direct child sub shape and its transform, note that the body ID and sub shape ID will be invalid

Reimplemented from Shape.

◆ GetSupportingFace()

void ScaledShape::GetSupportingFace ( const SubShapeID inSubShapeID,
Vec3Arg  inDirection,
Vec3Arg  inScale,
Mat44Arg  inCenterOfMassTransform,
SupportingFace outVertices 
) const
overridevirtual

Get the vertices of the face that faces inDirection the most (includes any convex radius). Note that this function can only return faces of convex shapes or triangles, which is why a sub shape ID to get to that leaf must be provided.

Parameters
inSubShapeIDSub shape ID of target shape
inDirectionDirection that the face should be facing (in local space to this shape)
inCenterOfMassTransformTransform to transform outVertices with
inScaleScale in local space of the shape (scales relative to its center of mass)
outVerticesResulting face. The returned face can be empty if the shape doesn't have polygons to return (e.g. because it's a sphere). The face will be returned in world space.

Reimplemented from DecoratedShape.

◆ GetSurfaceNormal()

Vec3 ScaledShape::GetSurfaceNormal ( const SubShapeID inSubShapeID,
Vec3Arg  inLocalSurfacePosition 
) const
overridevirtual

Get the surface normal of a particular sub shape ID and point on surface (all vectors are relative to center of mass for this shape). Note: When you have a CollideShapeResult or ShapeCastResult you should use -mPenetrationAxis.Normalized() as contact normal as GetSurfaceNormal will only return face normals (and not vertex or edge normals).

Implements Shape.

◆ GetTrianglesNext()

virtual int ScaledShape::GetTrianglesNext ( GetTrianglesContext ioContext,
int  inMaxTrianglesRequested,
Float3 outTriangleVertices,
const PhysicsMaterial **  outMaterials = nullptr 
) const
inlineoverridevirtual

Call this repeatedly to get all triangles in the box. outTriangleVertices should be large enough to hold 3 * inMaxTriangleRequested entries. outMaterials (if it is not null) should contain inMaxTrianglesRequested entries. The function returns the amount of triangles that it found (which will be <= inMaxTrianglesRequested), or 0 if there are no more triangles. Note that the function can return a value < inMaxTrianglesRequested and still have more triangles to process (triangles can be returned in blocks). Note that the function may return triangles outside of the requested box, only coarse culling is performed on the returned triangles.

Implements Shape.

◆ GetTrianglesStart()

virtual void ScaledShape::GetTrianglesStart ( GetTrianglesContext ioContext,
const AABox inBox,
Vec3Arg  inPositionCOM,
QuatArg  inRotation,
Vec3Arg  inScale 
) const
inlineoverridevirtual

To start iterating over triangles, call this function first. ioContext is a temporary buffer and should remain untouched until the last call to GetTrianglesNext. inBox is the world space bounding in which you want to get the triangles. inPositionCOM/inRotation/inScale describes the transform of this shape. To get the actual triangles call GetTrianglesNext.

Implements Shape.

◆ GetVolume()

float ScaledShape::GetVolume ( ) const
overridevirtual

Implements Shape.

◆ GetWorldSpaceBounds() [1/3]

AABox Shape::GetWorldSpaceBounds ( DMat44Arg  inCenterOfMassTransform,
Vec3Arg  inScale 
) const
inline

Get world space bounds including convex radius.

◆ GetWorldSpaceBounds() [2/3]

virtual AABox Shape::GetWorldSpaceBounds ( Mat44Arg  inCenterOfMassTransform,
Vec3Arg  inScale 
) const
inlinevirtual

Get world space bounds including convex radius. This shape is scaled by inScale in local space first. This function can be overridden to return a closer fitting world space bounding box, by default it will just transform what GetLocalBounds() returns.

Reimplemented from Shape.

◆ GetWorldSpaceBounds() [3/3]

AABox ScaledShape::GetWorldSpaceBounds ( Mat44Arg  inCenterOfMassTransform,
Vec3Arg  inScale 
) const
overridevirtual

Get world space bounds including convex radius. This shape is scaled by inScale in local space first. This function can be overridden to return a closer fitting world space bounding box, by default it will just transform what GetLocalBounds() returns.

Reimplemented from Shape.

◆ IsValidScale()

bool ScaledShape::IsValidScale ( Vec3Arg  inScale) const
overridevirtual

Test if inScale is a valid scale for this shape. Some shapes can only be scaled uniformly, compound shapes cannot handle shapes being rotated and scaled (this would cause shearing), scale can never be zero. When the scale is invalid, the function will return false.

Here's a list of supported scales:

  • SphereShape: Scale must be uniform (signs of scale are ignored).
  • BoxShape: Any scale supported (signs of scale are ignored).
  • TriangleShape: Any scale supported when convex radius is zero, otherwise only uniform scale supported.
  • CapsuleShape: Scale must be uniform (signs of scale are ignored).
  • TaperedCapsuleShape: Scale must be uniform (sign of Y scale can be used to flip the capsule).
  • CylinderShape: Scale must be uniform in XZ plane, Y can scale independently (signs of scale are ignored).
  • RotatedTranslatedShape: Scale must not cause shear in the child shape.
  • CompoundShape: Scale must not cause shear in any of the child shapes.

Reimplemented from DecoratedShape.

◆ MakeScaleValid()

Vec3 ScaledShape::MakeScaleValid ( Vec3Arg  inScale) const
overridevirtual

This function will make sure that if you wrap this shape in a ScaledShape that the scale is valid. Note that this involves discarding components of the scale that are invalid, so the resulting scaled shape may be different than the requested scale. Compare the return value of this function with the scale you passed in to detect major inconsistencies and possibly warn the user.

Parameters
inScaleLocal space scale for this shape.
Returns
Scale that can be used to wrap this shape in a ScaledShape. IsValidScale will return true for this scale.

Reimplemented from DecoratedShape.

◆ RestoreBinaryState()

void ScaledShape::RestoreBinaryState ( StreamIn inStream)
overrideprotectedvirtual

This function should not be called directly, it is used by sRestoreFromBinaryState.

Reimplemented from Shape.

◆ SaveBinaryState()

void ScaledShape::SaveBinaryState ( StreamOut inStream) const
overridevirtual

Saves the contents of the shape in binary form to inStream.

Reimplemented from Shape.

◆ sRegister()

void ScaledShape::sRegister ( )
static

◆ TransformShape()

void ScaledShape::TransformShape ( Mat44Arg  inCenterOfMassTransform,
TransformedShapeCollector ioCollector 
) const
overridevirtual

Transforms this shape and all of its children with inTransform, resulting shape(s) are passed to ioCollector. Note that not all shapes support all transforms (especially true for scaling), the resulting shape will try to match the transform as accurately as possible.

Parameters
inCenterOfMassTransformThe transform (rotation, translation, scale) that the center of mass of the shape should get
ioCollectorThe transformed shapes will be passed to this collector

Reimplemented from Shape.


The documentation for this class was generated from the following files: