bool copyStaticProperties(PxRigidActor& to, const PxRigidActor& from,NxMirrorScene::MirrorFilter &mirrorFilter)
{
physx::shdfnd::InlineArray<PxShape*, 64> shapes;
shapes.resize(from.getNbShapes());
PxU32 shapeCount = from.getNbShapes();
from.getShapes(shapes.begin(), shapeCount);
physx::shdfnd::InlineArray<PxMaterial*, 64> materials;
for(PxU32 i = 0; i < shapeCount; i++)
{
PxShape* s = shapes[i];
if ( mirrorFilter.shouldMirror(*s) )
{
PxU32 materialCount = s->getNbMaterials();
materials.resize(materialCount);
s->getMaterials(materials.begin(), materialCount);
PxShape* shape = to.createShape(s->getGeometry().any(), materials.begin(), static_cast<physx::PxU16>(materialCount));
shape->setLocalPose( s->getLocalPose());
shape->setContactOffset(s->getContactOffset());
shape->setRestOffset(s->getRestOffset());
shape->setFlags(s->getFlags());
shape->setSimulationFilterData(s->getSimulationFilterData());
shape->setQueryFilterData(s->getQueryFilterData());
mirrorFilter.reviseMirrorShape(*shape);
}
}
to.setActorFlags(from.getActorFlags());
to.setOwnerClient(from.getOwnerClient());
to.setDominanceGroup(from.getDominanceGroup());
if ( to.getNbShapes() )
{
mirrorFilter.reviseMirrorActor(to);
}
return to.getNbShapes() != 0;
}
bool CreateGeometryFromPhysxActor(PxActor *a, LevelGeometry::Mesh &mesh)
{
bool rv = false;
if (!a)
return rv;
PxRigidActor *ra = a->isRigidActor();
if (!ra)
return rv;
GameObject* gameObj = NULL;
PhysicsCallbackObject* userData = static_cast<PhysicsCallbackObject*>(ra->userData);
if(userData) gameObj = userData->isGameObject();
r3dCSHolder block(g_pPhysicsWorld->GetConcurrencyGuard());
PxU32 nbShapes = ra->getNbShapes();
for (PxU32 i = 0; i < nbShapes; ++i)
{
PxShape *s = 0;
ra->getShapes(&s, 1, i);
PxGeometryType::Enum gt = s->getGeometryType();
switch(gt)
{
case PxGeometryType::eTRIANGLEMESH:
{
PxTriangleMeshGeometry g;
s->getTriangleMeshGeometry(g);
PxTransform t = s->getLocalPose().transform(ra->getGlobalPose());
rv = CreateGeometryFromPhysxGeometry(g, t, mesh);
break;
}
default:
r3dArtBug("buildNavigation: Unsupported physx mesh type %d, obj: %s\n", gt, gameObj ? gameObj->Name.c_str() : "<unknown>");
}
}
return rv;
}
bool UWorld::ComponentSweepMulti(TArray<struct FHitResult>& OutHits, class UPrimitiveComponent* PrimComp, const FVector& Start, const FVector& End, const FQuat& Quat, const struct FComponentQueryParams& Params) const
{
if (GetPhysicsScene() == NULL)
{
return false;
}
if (PrimComp == NULL)
{
UE_LOG(LogCollision, Log, TEXT("ComponentSweepMulti : No PrimComp"));
return false;
}
ECollisionChannel TraceChannel = PrimComp->GetCollisionObjectType();
// if extent is 0, do line trace
if (PrimComp->IsZeroExtent())
{
return RaycastMulti(this, OutHits, Start, End, TraceChannel, Params, FCollisionResponseParams(PrimComp->GetCollisionResponseToChannels()));
}
OutHits.Reset();
#if UE_WITH_PHYSICS
const FBodyInstance* BodyInstance = PrimComp->GetBodyInstance();
if (!BodyInstance || !BodyInstance->IsValidBodyInstance())
{
UE_LOG(LogCollision, Log, TEXT("ComponentSweepMulti : (%s) No physics data"), *PrimComp->GetReadableName());
return false;
}
#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
if(PrimComp->IsA(USkeletalMeshComponent::StaticClass()))
{
UE_LOG(LogCollision, Warning, TEXT("ComponentSweepMulti : SkeletalMeshComponent support only root body (%s) "), *PrimComp->GetReadableName());
}
#endif
#endif
SCOPE_CYCLE_COUNTER(STAT_Collision_GeomSweepMultiple);
bool bHaveBlockingHit = false;
#if WITH_PHYSX
ExecuteOnPxRigidActorReadOnly(BodyInstance, [&] (const PxRigidActor* PRigidActor)
{
// Get all the shapes from the actor
FInlinePxShapeArray PShapes;
const int32 NumShapes = FillInlinePxShapeArray(PShapes, *PRigidActor);
// calculate the test global pose of the actor
const PxQuat PGeomRot = U2PQuat(Quat);
const PxTransform PGlobalStartPose = PxTransform(U2PVector(Start), PGeomRot);
const PxTransform PGlobalEndPose = PxTransform(U2PVector(End), PGeomRot);
// Iterate over each shape
for(int32 ShapeIdx=0; ShapeIdx<NumShapes; ShapeIdx++)
{
PxShape* PShape = PShapes[ShapeIdx];
check(PShape);
GET_GEOMETRY_FROM_SHAPE(PGeom, PShape);
if (PGeom != NULL)
{
// Calc shape global pose
const PxTransform PLocalShape = PShape->getLocalPose();
const PxTransform PShapeGlobalStartPose = PGlobalStartPose.transform(PLocalShape);
const PxTransform PShapeGlobalEndPose = PGlobalEndPose.transform(PLocalShape);
// consider localshape rotation for shape rotation
const PxQuat PShapeRot = PGeomRot * PLocalShape.q;
if (GeomSweepMulti_PhysX(this, *PGeom, PShapeRot, OutHits, P2UVector(PShapeGlobalStartPose.p), P2UVector(PShapeGlobalEndPose.p), TraceChannel, Params, FCollisionResponseParams(PrimComp->GetCollisionResponseToChannels())))
{
bHaveBlockingHit = true;
}
}
}
});
#endif //WITH_PHYSX
//@TODO: BOX2D: Implement UWorld::ComponentSweepMulti
#if WITH_BOX2D
// if (b2Body* BodyInstance = PrimComp->BodyInstance.BodyInstancePtr)
// {
//
// }
#endif
return bHaveBlockingHit;
}
osg::Node* createNodeForActor( PxRigidActor* actor )
{
if ( !actor ) return NULL;
std::vector<PxShape*> shapes( actor->getNbShapes() );
osg::ref_ptr<osg::MatrixTransform> transform = new osg::MatrixTransform;
transform->setMatrix( toMatrix(PxMat44(actor->getGlobalPose())) );
osg::ref_ptr<osg::Geode> geode = new osg::Geode;
transform->addChild( geode.get() );
PxU32 num = actor->getShapes( &(shapes[0]), actor->getNbShapes() );
for ( PxU32 i=0; i<num; ++i )
{
PxShape* shape = shapes[i];
osg::Matrix localMatrix = toMatrix( PxMat44(actor->getGlobalPose()) );
osg::Vec3 localPos = toVec3( shape->getLocalPose().p );
osg::Quat localQuat(shape->getLocalPose().q.x, shape->getLocalPose().q.y,
shape->getLocalPose().q.z, shape->getLocalPose().q.w);
switch ( shape->getGeometryType() )
{
case PxGeometryType::eSPHERE:
{
PxSphereGeometry sphere;
shape->getSphereGeometry( sphere );
osg::Sphere* sphereShape = new osg::Sphere(localPos, sphere.radius);
geode->addDrawable( new osg::ShapeDrawable(sphereShape) );
}
break;
case PxGeometryType::ePLANE:
// TODO
break;
case PxGeometryType::eCAPSULE:
{
PxCapsuleGeometry capsule;
shape->getCapsuleGeometry( capsule );
osg::Capsule* capsuleShape = new osg::Capsule(
localPos, capsule.radius, capsule.halfHeight * 2.0f);
capsuleShape->setRotation( localQuat );
geode->addDrawable( new osg::ShapeDrawable(capsuleShape) );
}
break;
case PxGeometryType::eBOX:
{
PxBoxGeometry box;
shape->getBoxGeometry( box );
osg::Box* boxShape = new osg::Box(localPos,
box.halfExtents[0] * 2.0f, box.halfExtents[1] * 2.0f, box.halfExtents[2] * 2.0f);
boxShape->setRotation( localQuat );
geode->addDrawable( new osg::ShapeDrawable(boxShape) );
}
break;
case PxGeometryType::eCONVEXMESH:
{
PxConvexMeshGeometry convexMeshGeom;
shape->getConvexMeshGeometry( convexMeshGeom );
// TODO: consider convexMeshGeom.scale
PxConvexMesh* convexMesh = convexMeshGeom.convexMesh;
if ( convexMesh )
{
/*for ( unsigned int i=0; i<convexMesh->getNbPolygons(); ++i )
{
}*/
// TODO
}
}
break;
case PxGeometryType::eTRIANGLEMESH:
{
PxTriangleMeshGeometry triangleMeshGeom;
shape->getTriangleMeshGeometry( triangleMeshGeom );
// TODO: consider triangleMeshGeom.scale
PxTriangleMesh* triangleMesh = triangleMeshGeom.triangleMesh;
if ( triangleMesh )
{
osg::ref_ptr<osg::Vec3Array> va = new osg::Vec3Array( triangleMesh->getNbVertices() );
for ( unsigned int i=0; i<va->size(); ++i )
(*va)[i] = toVec3( *(triangleMesh->getVertices() + i) ) * localMatrix;
osg::ref_ptr<osg::DrawElements> de;
if ( triangleMesh->getTriangleMeshFlags()&PxTriangleMeshFlag::eHAS_16BIT_TRIANGLE_INDICES )
{
osg::DrawElementsUShort* de16 = new osg::DrawElementsUShort(GL_TRIANGLES);
de = de16;
const PxU16* indices = (const PxU16*)triangleMesh->getTriangles();
for ( unsigned int i=0; i<triangleMesh->getNbTriangles(); ++i )
{
de16->push_back( indices[3 * i + 0] );
de16->push_back( indices[3 * i + 1] );
de16->push_back( indices[3 * i + 2] );
}
}
else
{
osg::DrawElementsUInt* de32 = new osg::DrawElementsUInt(GL_TRIANGLES);
de = de32;
const PxU32* indices = (const PxU32*)triangleMesh->getTriangles();
for ( unsigned int i=0; i<triangleMesh->getNbTriangles(); ++i )
{
de32->push_back( indices[3 * i + 0] );
de32->push_back( indices[3 * i + 1] );
de32->push_back( indices[3 * i + 2] );
}
}
geode->addDrawable( createGeometry(va.get(), NULL, NULL, de.get()) );
}
}
break;
case PxGeometryType::eHEIGHTFIELD:
{
PxHeightFieldGeometry hfGeom;
shape->getHeightFieldGeometry( hfGeom );
// TODO: consider hfGeom.*scale
PxHeightField* heightField = hfGeom.heightField;
if ( heightField )
{
// TODO
}
}
break;
}
}
return transform.release();
}
FDbool BuildingSystem::searchForHit(PhysicsSystem& physicsSystem,
Ray r, PxGeometry& pixelFrustum, SearchContext& searchContext) {
// Cast the ray into the scene. Quit if no intersection at all.
PxQueryFilterData qFilterData;
qFilterData.flags |= PxQueryFlag::ePREFILTER | PxQueryFlag::ePOSTFILTER;
FDbool rayStatus = physicsSystem.scene->raycast(
r.position, r.direction, 100, searchContext.hitBuffer,
PxHitFlag::ePOSITION | PxHitFlag::eDISTANCE | PxHitFlag::eNORMAL,
qFilterData, &CustomPhysicsQueryFilter());
/* Demo-ing to a friend showed that it can be confusing to try to connect
* up an existing point that lies on the guide plane, since part of it will
* be behind the guide plane, which the ray-cast will see as being closer.
* To remedy this, I treat the GuidePlane as a "touching" rather than
* "blocking hit" and give some priority to points. */
if (rayStatus && searchContext.hitBuffer.hasBlock) {
// In this case, we know we hit something other than the guide plane.
searchContext.hitActor = searchContext.hitBuffer.block.actor;
searchContext.rayHit = &searchContext.hitBuffer.block;
FDreal blockDistance = searchContext.rayHit->distance;
searchContext.setHit(&searchContext.hitBuffer.block);
// If the guide plane was also hit, see if it is closer.
if (searchContext.hitBuffer.nbTouches > 0) {
float guidePlaneDistance = searchContext.hitBuffer.getTouch(0).
distance;
// If the point intersects the plane, prefer it.
if (searchContext.hitActor == pointActor) {
FDUint i = (FDUint)searchContext.rayHit->shape->userData;
Vector3 pointPos = *pointAuthor->getAttribute<Vector3>(i, 0);
float pointRadius = 0.2;
Vector3 guidePlaneNormal = searchContext.hitBuffer.
getTouch(0).normal;
Plane p = Plane(searchContext.hitBuffer.getTouch(0).position,
guidePlaneNormal);
// We know the point (modeled as a sphere) intersects the
// plane if the point is within 1 sphere radius.
float pointPlaneDistance = p.distance(pointPos);
if (abs(pointPlaneDistance) <= pointRadius) {
blockDistance = 0;
}
}
if (guidePlaneDistance < blockDistance) {
searchContext.hitActor = searchContext.hitBuffer.getTouch(0).
actor;
searchContext.setHit(&searchContext.hitBuffer.getTouch(0));
}
}
} else if (rayStatus) {
// Only the guide plane was hit.
searchContext.hitActor = searchContext.hitBuffer.getTouch(0).actor;
searchContext.setHit(&searchContext.hitBuffer.getTouch(0));
}
// Try overlap test for other geometry.
Quaternion q = fdmath::getRotationBetween(Vector3(0, 0, 1), r.direction);
Vector3 obo = q.rotate(Vector3(0, 0, 1));
PxTransform pose(r.position, q);
PxQueryFilterData qPixelFilterData;
qPixelFilterData.flags |= PxQueryFlag::ePREFILTER;
physicsSystem.scene->overlap(pixelFrustum, pose,
searchContext.overlapBuffer, qPixelFilterData,
&PixelQueryFilter());
for (FDUint i = 0; i < searchContext.overlapBuffer.nbTouches; i++) {
PxRigidStatic* thisActor = (PxRigidStatic*)searchContext.overlapBuffer.
touches[i].actor;
PxShape* thisShape = searchContext.overlapBuffer.touches[i].shape;
// Get the closet point on the line to the ray.
Transform lineTransform = thisActor->getGlobalPose() *
thisShape->getLocalPose();
Vector3 lineAxisPoint = lineTransform.transform(Vector3(1, 0, 0));
Vector3 centerPos = lineTransform.p;
Vector3 lineAxis = (lineAxisPoint - centerPos).getNormalized();
Vector3 uAxis = lineAxis.cross(r.direction);
uAxis.normalize();
Plane p(centerPos, lineAxisPoint, centerPos + uAxis);
Vector3 intersectionPoint;
FDbool intersects = r.intersect(p, intersectionPoint);
FD_ASSERT(intersects, "Ray did not intersect line's plane.");
FDreal y = lineAxis.dot(intersectionPoint) - lineAxis.dot(centerPos);
Vector3 closestPoint = centerPos + lineAxis * y;
FDreal dist = (closestPoint - r.position).magnitude();
if (dist < searchContext.hitDist) {
searchContext.setHit(&searchContext.overlapBuffer.touches[i],
closestPoint, -r.direction, dist);
searchContext.hitActor = thisActor;
}
}
return searchContext.hitHappened;
}
bool UWorld::ComponentSweepMulti(TArray<struct FHitResult>& OutHits, class UPrimitiveComponent* PrimComp, const FVector& Start, const FVector& End, const FRotator& Rot, const struct FComponentQueryParams& Params) const
{
if(GetPhysicsScene() == NULL)
{
return false;
}
if(PrimComp == NULL)
{
UE_LOG(LogCollision, Log, TEXT("ComponentSweepMulti : No PrimComp"));
return false;
}
// if target is skeletalmeshcomponent and do not support singlebody physics
if ( !PrimComp->ShouldTrackOverlaps() )
{
UE_LOG(LogCollision, Log, TEXT("ComponentSweepMulti : (%s) Does not support skeletalmesh with Physics Asset and destructibles."), *PrimComp->GetPathName());
return false;
}
ECollisionChannel TraceChannel = PrimComp->GetCollisionObjectType();
#if WITH_PHYSX
// if extent is 0, do line trace
if (PrimComp->IsZeroExtent())
{
return RaycastMulti(this, OutHits, Start, End, TraceChannel, Params, FCollisionResponseParams(PrimComp->GetCollisionResponseToChannels()));
}
PxRigidActor* PRigidActor = PrimComp->BodyInstance.GetPxRigidActor();
if(PRigidActor == NULL)
{
UE_LOG(LogCollision, Log, TEXT("ComponentSweepMulti : (%s) No physics data"), *PrimComp->GetPathName());
return false;
}
PxScene * const PScene = PRigidActor->getScene();
OutHits.Empty();
// Get all the shapes from the actor
TArray<PxShape*, TInlineAllocator<8>> PShapes;
{
SCOPED_SCENE_READ_LOCK(PScene);
PShapes.AddZeroed(PRigidActor->getNbShapes());
PRigidActor->getShapes(PShapes.GetData(), PShapes.Num());
}
// calculate the test global pose of the actor
PxTransform PGlobalStartPose = U2PTransform(FTransform(Start));
PxTransform PGlobalEndPose = U2PTransform(FTransform(End));
bool bHaveBlockingHit = false;
PxQuat PGeomRot = U2PQuat(Rot.Quaternion());
// Iterate over each shape
SCENE_LOCK_READ(PScene);
for(int32 ShapeIdx=0; ShapeIdx<PShapes.Num(); ShapeIdx++)
{
PxShape* PShape = PShapes[ShapeIdx];
check(PShape);
TArray<struct FHitResult> Hits;
// Calc shape global pose
PxTransform PLocalShape = PShape->getLocalPose();
PxTransform PShapeGlobalStartPose = PGlobalStartPose.transform(PLocalShape);
PxTransform PShapeGlobalEndPose = PGlobalEndPose.transform(PLocalShape);
// consider localshape rotation for shape rotation
PxQuat PShapeRot = PGeomRot * PLocalShape.q;
GET_GEOMETRY_FROM_SHAPE(PGeom, PShape);
if(PGeom != NULL)
{
SCENE_UNLOCK_READ(PScene);
if (GeomSweepMulti(this, *PGeom, PShapeRot, Hits, P2UVector(PShapeGlobalStartPose.p), P2UVector(PShapeGlobalEndPose.p), TraceChannel, Params, FCollisionResponseParams(PrimComp->GetCollisionResponseToChannels())))
{
bHaveBlockingHit = true;
}
OutHits.Append(Hits);
SCENE_LOCK_READ(PScene);
}
}
SCENE_UNLOCK_READ(PScene);
return bHaveBlockingHit;
#endif //WITH_PHYSX
return false;
}
bool UWorld::ComponentSweepSingle(struct FHitResult& OutHit,class UPrimitiveComponent* PrimComp, const FVector& Start, const FVector& End, const FRotator& Rot, const struct FComponentQueryParams& Params) const
{
OutHit.TraceStart = Start;
OutHit.TraceEnd = End;
if(GetPhysicsScene() == NULL)
{
return false;
}
if(PrimComp == NULL)
{
UE_LOG(LogCollision, Log, TEXT("ComponentSweepSingle : No PrimComp"));
return false;
}
// if target is skeletalmeshcomponent and do not support singlebody physics
if ( !PrimComp->ShouldTrackOverlaps() )
{
UE_LOG(LogCollision, Log, TEXT("ComponentSweepSingle : (%s) Does not support skeletalmesh with Physics Asset and destructibles."), *PrimComp->GetPathName());
return false;
}
ECollisionChannel TraceChannel = PrimComp->GetCollisionObjectType();
#if WITH_PHYSX
// if extent is 0, do line trace
if (PrimComp->IsZeroExtent())
{
return RaycastSingle(this, OutHit, Start, End, TraceChannel, Params, FCollisionResponseParams(PrimComp->GetCollisionResponseToChannels()));
}
PxRigidActor* PRigidActor = PrimComp->BodyInstance.GetPxRigidActor();
if(PRigidActor == NULL)
{
UE_LOG(LogCollision, Log, TEXT("ComponentSweepMulti : (%s) No physics data"), *PrimComp->GetPathName());
return false;
}
// Get all the shapes from the actor
TArray<PxShape*, TInlineAllocator<8>> PShapes;
PShapes.AddZeroed(PRigidActor->getNbShapes());
int32 NumShapes = PRigidActor->getShapes(PShapes.GetData(), PShapes.Num());
// calculate the test global pose of the actor
PxTransform PGlobalStartPose = U2PTransform(FTransform(Start));
PxTransform PGlobalEndPose = U2PTransform(FTransform(End));
bool bHaveBlockingHit = false;
PxQuat PGeomRot = U2PQuat(Rot.Quaternion());
// Iterate over each shape
for(int32 ShapeIdx=0; ShapeIdx<PShapes.Num(); ShapeIdx++)
{
PxShape* PShape = PShapes[ShapeIdx];
check(PShape);
// Calc shape global pose
PxTransform PLocalShape = PShape->getLocalPose();
PxTransform PShapeGlobalStartPose = PGlobalStartPose.transform(PLocalShape);
PxTransform PShapeGlobalEndPose = PGlobalEndPose.transform(PLocalShape);
// consider localshape rotation for shape rotation
PxQuat PShapeRot = PGeomRot * PLocalShape.q;
GET_GEOMETRY_FROM_SHAPE(PGeom, PShape);
if(PGeom != NULL)
{
// @todo UE4, this might not be the best behavior. If we're looking for the most closest, this have to change to save the result, and find the closest one or
// any other options, right now if anything hits first, it will return
if (GeomSweepSingle(this, *PGeom, PShapeRot, OutHit, P2UVector(PShapeGlobalStartPose.p), P2UVector(PShapeGlobalEndPose.p), TraceChannel, Params, FCollisionResponseParams(PrimComp->GetCollisionResponseToChannels())))
{
bHaveBlockingHit = true;
break;
}
}
}
return bHaveBlockingHit;
#endif //WITH_PHYSX
return false;
}
bool UWorld::ComponentOverlapTest(class UPrimitiveComponent* PrimComp, const FVector& Pos, const FRotator& Rot, const struct FComponentQueryParams& Params) const
{
if(GetPhysicsScene() == NULL)
{
return false;
}
if(PrimComp == NULL)
{
UE_LOG(LogCollision, Log, TEXT("ComponentOverlapMulti : No PrimComp"));
return false;
}
// if target is skeletalmeshcomponent and do not support singlebody physics, we don't support this yet
// talk to @JG, SP, LH
if ( !PrimComp->ShouldTrackOverlaps() )
{
UE_LOG(LogCollision, Log, TEXT("ComponentOverlapMulti : (%s) Does not support skeletalmesh with Physics Asset and destructibles."), *PrimComp->GetPathName());
return false;
}
#if WITH_PHYSX
ECollisionChannel TraceChannel = PrimComp->GetCollisionObjectType();
PxRigidActor* PRigidActor = PrimComp->BodyInstance.GetPxRigidActor();
if(PRigidActor == NULL)
{
UE_LOG(LogCollision, Log, TEXT("ComponentOverlapMulti : (%s) No physics data"), *PrimComp->GetPathName());
return false;
}
// calculate the test global pose of the actor
PxTransform PTestGlobalPose = U2PTransform(FTransform(Rot, Pos));
// Get all the shapes from the actor
TArray<PxShape*, TInlineAllocator<8>> PShapes;
PShapes.AddZeroed(PRigidActor->getNbShapes());
int32 NumShapes = PRigidActor->getShapes(PShapes.GetData(), PShapes.Num());
// Iterate over each shape
for(int32 ShapeIdx=0; ShapeIdx<PShapes.Num(); ShapeIdx++)
{
PxShape* PShape = PShapes[ShapeIdx];
check(PShape);
// Calc shape global pose
PxTransform PLocalPose = PShape->getLocalPose();
PxTransform PShapeGlobalPose = PTestGlobalPose.transform(PLocalPose);
GET_GEOMETRY_FROM_SHAPE(PGeom, PShape);
if(PGeom != NULL)
{
if( GeomOverlapTest(this, *PGeom, PShapeGlobalPose, TraceChannel, Params, FCollisionResponseParams(PrimComp->GetCollisionResponseToChannels())))
{
// in this test, it only matters true or false.
// if we found first true, we don't care next test anymore.
return true;
}
}
}
#endif //WITH_PHYSX
return false;
}