void AddTriMeshToRigidActor_AssumesLocked() const
{
float ContactOffsetFactor, MaxContactOffset;
GetContactOffsetParams(ContactOffsetFactor, MaxContactOffset);
for(PxTriangleMesh* TriMesh : BodySetup->TriMeshes)
{
PxTriangleMeshGeometry PTriMeshGeom;
PTriMeshGeom.triangleMesh = TriMesh;
PTriMeshGeom.scale.scale = U2PVector(Scale3D);
if (BodySetup->bDoubleSidedGeometry)
{
PTriMeshGeom.meshFlags |= PxMeshGeometryFlag::eDOUBLE_SIDED;
}
if (PTriMeshGeom.isValid())
{
PxTransform PElementTransform = U2PTransform(RelativeTM);
// Create without 'sim shape' flag, problematic if it's kinematic, and it gets set later anyway.
if (!AttachShape_AssumesLocked(PTriMeshGeom, PElementTransform, MaxContactOffset, PxShapeFlag::eSCENE_QUERY_SHAPE | PxShapeFlag::eVISUALIZATION))
{
UE_LOG(LogPhysics, Log, TEXT("Can't create new mesh shape in AddShapesToRigidActor"));
}
}
else
{
UE_LOG(LogPhysics, Log, TEXT("AddTriMeshToRigidActor: TriMesh invalid"));
}
}
}
void AddBoxesToRigidActor_AssumesLocked() const
{
float ContactOffsetFactor, MaxContactOffset;
GetContactOffsetParams(ContactOffsetFactor, MaxContactOffset);
for (int32 i = 0; i < BodySetup->AggGeom.BoxElems.Num(); i++)
{
const FKBoxElem& BoxElem = BodySetup->AggGeom.BoxElems[i];
PxBoxGeometry PBoxGeom;
PBoxGeom.halfExtents.x = (0.5f * BoxElem.X * Scale3DAbs.X);
PBoxGeom.halfExtents.y = (0.5f * BoxElem.Y * Scale3DAbs.Y);
PBoxGeom.halfExtents.z = (0.5f * BoxElem.Z * Scale3DAbs.Z);
FTransform BoxTransform = BoxElem.GetTransform() * RelativeTM;
if (PBoxGeom.isValid() && BoxTransform.IsValid())
{
PxTransform PLocalPose(U2PTransform(BoxTransform));
PLocalPose.p.x *= Scale3D.X;
PLocalPose.p.y *= Scale3D.Y;
PLocalPose.p.z *= Scale3D.Z;
ensure(PLocalPose.isValid());
{
const float ContactOffset = FMath::Min(MaxContactOffset, ContactOffsetFactor * PBoxGeom.halfExtents.minElement());
AttachShape_AssumesLocked(PBoxGeom, PLocalPose, ContactOffset);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("AddBoxesToRigidActor: [%s] BoxElems[%d] invalid or has invalid transform"), *GetPathNameSafe(BodySetup->GetOuter()), i);
}
}
}
void AddSpheresToRigidActor_AssumesLocked() const
{
float ContactOffsetFactor, MaxContactOffset;
GetContactOffsetParams(ContactOffsetFactor, MaxContactOffset);
for (int32 i = 0; i < BodySetup->AggGeom.SphereElems.Num(); i++)
{
const FKSphereElem& SphereElem = BodySetup->AggGeom.SphereElems[i];
PxSphereGeometry PSphereGeom;
PSphereGeom.radius = (SphereElem.Radius * MinScaleAbs);
if (ensure(PSphereGeom.isValid()))
{
FVector LocalOrigin = RelativeTM.TransformPosition(SphereElem.Center);
PxTransform PLocalPose(U2PVector(LocalOrigin));
PLocalPose.p *= MinScale;
ensure(PLocalPose.isValid());
{
const float ContactOffset = FMath::Min(MaxContactOffset, ContactOffsetFactor * PSphereGeom.radius);
AttachShape_AssumesLocked(PSphereGeom, PLocalPose, ContactOffset);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("AddSpheresToRigidActor: [%s] SphereElem[%d] invalid"), *GetPathNameSafe(BodySetup->GetOuter()), i);
}
}
}
void AddConvexElemsToRigidActor_AssumesLocked() const
{
float ContactOffsetFactor, MaxContactOffset;
GetContactOffsetParams(ContactOffsetFactor, MaxContactOffset);
for (int32 i = 0; i < BodySetup->AggGeom.ConvexElems.Num(); i++)
{
const FKConvexElem& ConvexElem = BodySetup->AggGeom.ConvexElems[i];
if (ConvexElem.ConvexMesh)
{
PxTransform PLocalPose;
bool bUseNegX = CalcMeshNegScaleCompensation(Scale3D, PLocalPose);
PxConvexMeshGeometry PConvexGeom;
PConvexGeom.convexMesh = bUseNegX ? ConvexElem.ConvexMeshNegX : ConvexElem.ConvexMesh;
PConvexGeom.scale.scale = U2PVector(Scale3DAbs * ConvexElem.GetTransform().GetScale3D().GetAbs());
FTransform ConvexTransform = ConvexElem.GetTransform();
if (ConvexTransform.GetScale3D().X < 0 || ConvexTransform.GetScale3D().Y < 0 || ConvexTransform.GetScale3D().Z < 0)
{
UE_LOG(LogPhysics, Warning, TEXT("AddConvexElemsToRigidActor: [%s] ConvexElem[%d] has negative scale. Not currently supported"), *GetPathNameSafe(BodySetup->GetOuter()), i);
}
if (ConvexTransform.IsValid())
{
PxTransform PElementTransform = U2PTransform(ConvexTransform * RelativeTM);
PLocalPose.q *= PElementTransform.q;
PLocalPose.p = PElementTransform.p;
PLocalPose.p.x *= Scale3D.X;
PLocalPose.p.y *= Scale3D.Y;
PLocalPose.p.z *= Scale3D.Z;
if (PConvexGeom.isValid())
{
PxVec3 PBoundsExtents = PConvexGeom.convexMesh->getLocalBounds().getExtents();
ensure(PLocalPose.isValid());
{
const float ContactOffset = FMath::Min(MaxContactOffset, ContactOffsetFactor * PBoundsExtents.minElement());
AttachShape_AssumesLocked(PConvexGeom, PLocalPose, ContactOffset);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("AddConvexElemsToRigidActor: [%s] ConvexElem[%d] invalid"), *GetPathNameSafe(BodySetup->GetOuter()), i);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("AddConvexElemsToRigidActor: [%s] ConvexElem[%d] has invalid transform"), *GetPathNameSafe(BodySetup->GetOuter()), i);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("AddConvexElemsToRigidActor: ConvexElem is missing ConvexMesh (%d: %s)"), i, *BodySetup->GetPathName());
}
}
}
void AddTriMeshToRigidActor_AssumesLocked() const
{
float ContactOffsetFactor, MaxContactOffset;
GetContactOffsetParams(ContactOffsetFactor, MaxContactOffset);
if (BodySetup->TriMesh || BodySetup->TriMeshNegX)
{
PxTransform PLocalPose;
bool bUseNegX = CalcMeshNegScaleCompensation(Scale3D, PLocalPose);
// Only case where TriMeshNegX should be null is BSP, which should not require negX version
if (bUseNegX && BodySetup->TriMeshNegX == NULL)
{
UE_LOG(LogPhysics, Log, TEXT("AddTriMeshToRigidActor: Want to use NegX but it doesn't exist! %s"), *BodySetup->GetPathName());
}
PxTriangleMesh* UseTriMesh = bUseNegX ? BodySetup->TriMeshNegX : BodySetup->TriMesh;
if (UseTriMesh != NULL)
{
PxTriangleMeshGeometry PTriMeshGeom;
PTriMeshGeom.triangleMesh = bUseNegX ? BodySetup->TriMeshNegX : BodySetup->TriMesh;
PTriMeshGeom.scale.scale = U2PVector(Scale3DAbs);
if (BodySetup->bDoubleSidedGeometry)
{
PTriMeshGeom.meshFlags |= PxMeshGeometryFlag::eDOUBLE_SIDED;
}
if (PTriMeshGeom.isValid())
{
ensure(PLocalPose.isValid());
// Create without 'sim shape' flag, problematic if it's kinematic, and it gets set later anyway.
{
if (!AttachShape_AssumesLocked(PTriMeshGeom, PLocalPose, MaxContactOffset, PxShapeFlag::eSCENE_QUERY_SHAPE | PxShapeFlag::eVISUALIZATION))
{
UE_LOG(LogPhysics, Log, TEXT("Can't create new mesh shape in AddShapesToRigidActor"));
}
}
}
else
{
UE_LOG(LogPhysics, Log, TEXT("AddTriMeshToRigidActor: TriMesh invalid"));
}
}
}
}
void AddSphylsToRigidActor_AssumesLocked() const
{
float ContactOffsetFactor, MaxContactOffset;
GetContactOffsetParams(ContactOffsetFactor, MaxContactOffset);
float ScaleRadius = FMath::Max(Scale3DAbs.X, Scale3DAbs.Y);
float ScaleLength = Scale3DAbs.Z;
for (int32 i = 0; i < BodySetup->AggGeom.SphylElems.Num(); i++)
{
const FKSphylElem& SphylElem = BodySetup->AggGeom.SphylElems[i];
// this is a bit confusing since radius and height is scaled
// first apply the scale first
float Radius = FMath::Max(SphylElem.Radius * ScaleRadius, 0.1f);
float Length = SphylElem.Length + SphylElem.Radius * 2.f;
float HalfLength = Length * ScaleLength * 0.5f;
Radius = FMath::Clamp(Radius, 0.1f, HalfLength); //radius is capped by half length
float HalfHeight = HalfLength - Radius;
HalfHeight = FMath::Max(0.1f, HalfHeight);
PxCapsuleGeometry PCapsuleGeom;
PCapsuleGeom.halfHeight = HalfHeight;
PCapsuleGeom.radius = Radius;
if (PCapsuleGeom.isValid())
{
// The stored sphyl transform assumes the sphyl axis is down Z. In PhysX, it points down X, so we twiddle the matrix a bit here (swap X and Z and negate Y).
PxTransform PLocalPose(U2PVector(RelativeTM.TransformPosition(SphylElem.Center)), U2PQuat(SphylElem.Orientation) * U2PSphylBasis);
PLocalPose.p.x *= Scale3D.X;
PLocalPose.p.y *= Scale3D.Y;
PLocalPose.p.z *= Scale3D.Z;
ensure(PLocalPose.isValid());
{
const float ContactOffset = FMath::Min(MaxContactOffset, ContactOffsetFactor * PCapsuleGeom.radius);
AttachShape_AssumesLocked(PCapsuleGeom, PLocalPose, ContactOffset);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("AddSphylsToRigidActor: [%s] SphylElems[%d] invalid"), *GetPathNameSafe(BodySetup->GetOuter()), i);
}
}
}
