PxCollectionExt

Defined in include/extensions/PxCollectionExt.h

class PxCollectionExt

Public Static Functions

static void releaseObjects(PxCollection &collection, bool releaseExclusiveShapes = true)

Removes and releases all object from a collection.

The Collection itself is not released.

If the releaseExclusiveShapes flag is not set to true, release() will not be called on exclusive shapes.

It is assumed that the application holds a reference to each of the objects in the collection, with the exception of objects that are not releasable (PxBase::isReleasable()). In general, objects that violate this assumption need to be removed from the collection prior to calling releaseObjects.

Note

when a shape is created with PxRigidActor::createShape() or PxRigidActorExt::createExclusiveShape(), the only counted reference is held by the actor. If such a shape and its actor are present in the collection, the reference count will be decremented once when the actor is released, and once when the shape is released, resulting in undefined behavior. Shape reference counts can be incremented with PxShape::acquireReference().

Parameters

  • collection – [in] to remove and release all object from.

  • releaseExclusiveShapes – [in] if this parameter is set to false, release() will not be called on exclusive shapes.

static void remove(PxCollection &collection, PxType concreteType, PxCollection *to = NULL)

Removes objects of a given type from a collection, potentially adding them to another collection.

See also

PxCollection, PxConcreteType

Parameters

  • collection – [inout] Collection from which objects are removed

  • concreteType – [in] PxConcreteType of sdk objects that should be removed

  • to – [inout] Optional collection to which the removed objects are added

static PxCollection *createCollection(PxPhysics &physics)

Collects all objects in PxPhysics that are shareable across multiple scenes.

This function creates a new collection from all objects that are shareable across multiple scenes. Instances of the following types are included: PxConvexMesh, PxTriangleMesh, PxHeightField, PxShape and PxMaterial.

This is a helper function to ease the creation of collections for serialization.

See also

PxCollection, PxPhysics

Parameters

physics – [in] The physics SDK instance from which objects are collected. See PxPhysics

Returns

Collection to which objects are added. See PxCollection

static PxCollection *createCollection(PxScene &scene)

Collects all objects from a PxScene.

This function creates a new collection from all objects that were added to the specified PxScene. Instances of the following types are included: PxActor, PxAggregate, PxArticulationReducedCoordinate and PxJoint (other PxConstraint types are not included).

This is a helper function to ease the creation of collections for serialization. The function PxSerialization.complete() can be used to complete the collection with required objects prior to serialization.

See also

PxCollection, PxScene, PxSerialization.complete()

Parameters

scene – [in] The PxScene instance from which objects are collected. See PxScene

Returns

Collection to which objects are added. See PxCollection