/**
* Perform any cleanup of physics engine resources.
* This is deferred because when closing down the game, you want to make sure you are not destroying a mesh after the physics SDK has been shut down.
*/
void DeferredPhysResourceCleanup()
{
#if WITH_PHYSX
// Release all tri meshes and reset array
for(int32 MeshIdx=0; MeshIdx<GPhysXPendingKillTriMesh.Num(); MeshIdx++)
{
PxTriangleMesh* PTriMesh = GPhysXPendingKillTriMesh[MeshIdx];
check(PTriMesh);
PTriMesh->release();
GPhysXPendingKillTriMesh[MeshIdx] = NULL;
}
GPhysXPendingKillTriMesh.Reset();
// Release all convex meshes and reset array
for(int32 MeshIdx=0; MeshIdx<GPhysXPendingKillConvex.Num(); MeshIdx++)
{
PxConvexMesh* PConvexMesh = GPhysXPendingKillConvex[MeshIdx];
check(PConvexMesh);
PConvexMesh->release();
GPhysXPendingKillConvex[MeshIdx] = NULL;
}
GPhysXPendingKillConvex.Reset();
// Release all heightfields and reset array
for(int32 HfIdx=0; HfIdx<GPhysXPendingKillHeightfield.Num(); HfIdx++)
{
PxHeightField* PHeightfield = GPhysXPendingKillHeightfield[HfIdx];
check(PHeightfield);
PHeightfield->release();
GPhysXPendingKillHeightfield[HfIdx] = NULL;
}
GPhysXPendingKillHeightfield.Reset();
// Release all materials and reset array
for(int32 MeshIdx=0; MeshIdx<GPhysXPendingKillMaterial.Num(); MeshIdx++)
{
PxMaterial* PMaterial = GPhysXPendingKillMaterial[MeshIdx];
check(PMaterial);
PMaterial->release();
GPhysXPendingKillMaterial[MeshIdx] = NULL;
}
GPhysXPendingKillMaterial.Reset();
#endif
}
bool CreateGeometryFromPhysxGeometry(PxTriangleMeshGeometry &g, const PxTransform &globalPose, LevelGeometry::Mesh &mesh)
{
PxTriangleMesh *tm = g.triangleMesh;
const PxU32 nbVerts = tm->getNbVertices();
const PxVec3* verts = tm->getVertices();
PxU32 nbTris = tm->getNbTriangles();
const void* typelessTris = tm->getTriangles();
PxU32 numIndices = nbTris * 3;
mesh.indices.Resize(numIndices);
if (tm->has16BitTriangleIndices())
{
// Convert indices to 32 bit
const short *i16 = reinterpret_cast<const short*>(typelessTris);
for (PxU32 i = 0; i < numIndices; ++i)
{
mesh.indices[i] = i16[i];
}
}
else
{
int size = numIndices * sizeof(mesh.indices[0]);
memcpy_s(&mesh.indices[0], size, typelessTris, size);
}
// Transform vertices to world space
mesh.vertices.Resize(nbVerts);
for (PxU32 i = 0; i < nbVerts; ++i)
{
PxVec3 pos = globalPose.transform(verts[i]);
mesh.vertices[i].Assign(pos.x, pos.y, pos.z);
}
// Reject out-of-regions triangles
numIndices = gConvexRegionsManager.FilterOutsideTriangles(&mesh.vertices[0], &mesh.indices[0], numIndices);
r3d_assert(numIndices % 3 == 0);
mesh.indices.Resize(numIndices);
return true;
}
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();
}
/**
* Perform any cleanup of physics engine resources.
* This is deferred because when closing down the game, you want to make sure you are not destroying a mesh after the physics SDK has been shut down.
*/
void DeferredPhysResourceCleanup()
{
#if WITH_PHYSX
// Release all tri meshes and reset array
for(int32 MeshIdx=0; MeshIdx<GPhysXPendingKillTriMesh.Num(); MeshIdx++)
{
PxTriangleMesh* PTriMesh = GPhysXPendingKillTriMesh[MeshIdx];
// Check this as it shouldn't be null, but then gate on it so we can
// avoid a crash if we end up in this state in shipping
check(PTriMesh);
if(PTriMesh)
{
PTriMesh->release();
if(GPhysXPendingKillTriMesh.IsValidIndex(MeshIdx))
{
GPhysXPendingKillTriMesh[MeshIdx] = NULL;
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("DeferredPhysResourceCleanup found invalid index into GPhysXPendingKillTriMesh, another thread may have modified the array."), MeshIdx);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("DeferredPhysResourceCleanup found null PxTriangleMesh in pending kill array, another thread may have modified the array."), MeshIdx);
}
}
GPhysXPendingKillTriMesh.Reset();
// Release all convex meshes and reset array
for(int32 MeshIdx=0; MeshIdx<GPhysXPendingKillConvex.Num(); MeshIdx++)
{
PxConvexMesh* PConvexMesh = GPhysXPendingKillConvex[MeshIdx];
// Check this as it shouldn't be null, but then gate on it so we can
// avoid a crash if we end up in this state in shipping
check(PConvexMesh);
if(PConvexMesh)
{
PConvexMesh->release();
if(GPhysXPendingKillConvex.IsValidIndex(MeshIdx))
{
GPhysXPendingKillConvex[MeshIdx] = NULL;
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("DeferredPhysResourceCleanup found invalid index into GPhysXPendingKillConvex (%d), another thread may have modified the array."), MeshIdx);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("DeferredPhysResourceCleanup found null PxConvexMesh in pending kill array (at %d), another thread may have modified the array."), MeshIdx);
}
}
GPhysXPendingKillConvex.Reset();
// Release all heightfields and reset array
for(int32 HfIdx=0; HfIdx<GPhysXPendingKillHeightfield.Num(); HfIdx++)
{
PxHeightField* PHeightfield = GPhysXPendingKillHeightfield[HfIdx];
// Check this as it shouldn't be null, but then gate on it so we can
// avoid a crash if we end up in this state in shipping
check(PHeightfield);
if(PHeightfield)
{
PHeightfield->release();
if(GPhysXPendingKillHeightfield.IsValidIndex(HfIdx))
{
GPhysXPendingKillHeightfield[HfIdx] = NULL;
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("DeferredPhysResourceCleanup found invalid index into GPhysXPendingKillHeightfield (%d), another thread may have modified the array."), HfIdx);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("DeferredPhysResourceCleanup found null PxHeightField in pending kill array (at %d), another thread may have modified the array."), HfIdx);
}
}
GPhysXPendingKillHeightfield.Reset();
// Release all materials and reset array
for(int32 MeshIdx=0; MeshIdx<GPhysXPendingKillMaterial.Num(); MeshIdx++)
{
PxMaterial* PMaterial = GPhysXPendingKillMaterial[MeshIdx];
// Check this as it shouldn't be null, but then gate on it so we can
// avoid a crash if we end up in this state in shipping
check(PMaterial);
if(PMaterial)
{
PMaterial->release();
if(GPhysXPendingKillMaterial.IsValidIndex(MeshIdx))
{
GPhysXPendingKillMaterial[MeshIdx] = NULL;
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("DeferredPhysResourceCleanup found invalid index into GPhysXPendingKillMaterial(%d), another thread may have modified the array."), MeshIdx);
}
}
else
{
UE_LOG(LogPhysics, Warning, TEXT("DeferredPhysResourceCleanup found null PxMaterial in pending kill array (at %d), another thread may have modified the array."), MeshIdx);
}
}
GPhysXPendingKillMaterial.Reset();
#endif
}