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BulletSim: don't recreate mesh unless it needs it when rebuilding the hull. Make sure the collisionCollection is reallocated each tick to fix race condition of it being cleared while still in use.

integration
Robert Adams 2012-08-14 16:41:36 -07:00
parent 257446889b
commit b05a2fc4ed
1 changed files with 15 additions and 15 deletions
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30
OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
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@ -497,6 +497,9 @@ public sealed class BSPrim : PhysicsActor
BulletSimAPI.SetObjectProperties(_scene.WorldID, LocalID, IsStatic, IsSolid, SubscribedEvents(), mass);
// recompute any linkset parameters
_linkset.Refresh(this);
CollisionFlags cf = BulletSimAPI.GetCollisionFlags2(Body.Ptr);
DetailLog("{0},BSPrim.SetObjectDynamic,taint,static={1},solid={2},mass={3}, cf={4}", LocalID, IsStatic, IsSolid, mass, cf);
}
@ -1095,28 +1098,21 @@ public sealed class BSPrim : PhysicsActor
// if the hull hasn't changed, don't rebuild it
if (newHullKey == _hullKey) return;
DetailLog("{0},BSPrim.CreateGeomHull,create,key={1}", LocalID, _meshKey);
DetailLog("{0},BSPrim.CreateGeomHull,create,oldKey={1},newKey={2}", LocalID, _hullKey, newHullKey);
// Since we're recreating new, get rid of any previously generated shape
if (_hullKey != 0)
{
// m_log.DebugFormat("{0}: CreateGeom: deleting old hull. Key={1}", LogHeader, _hullKey);
DetailLog("{0},BSPrim.CreateGeomHull,deleteOldHull,key={1}", LocalID, _meshKey);
DetailLog("{0},BSPrim.CreateGeomHull,deleteOldHull,key={1}", LocalID, _hullKey);
BulletSimAPI.DestroyHull(_scene.WorldID, _hullKey);
_hullKey = 0;
_hulls.Clear();
DetailLog("{0},BSPrim.CreateGeomHull,deleteOldMesh,key={1}", LocalID, _meshKey);
BulletSimAPI.DestroyMesh(_scene.WorldID, _meshKey);
_mesh = null; // the mesh cannot match either
_meshKey = 0;
}
_hullKey = newHullKey;
if (_meshKey != _hullKey)
{
// if the underlying mesh has changed, rebuild it
CreateGeomMesh();
}
// Make sure the underlying mesh exists and is correct
CreateGeomMesh();
int[] indices = _mesh.getIndexListAsInt();
List<OMV.Vector3> vertices = _mesh.getVertexList();
@ -1142,7 +1138,7 @@ public sealed class BSPrim : PhysicsActor
// create the hull into the _hulls variable
convexBuilder.process(dcomp);
// Convert the vertices and indices for passing to unmanaged
// Convert the vertices and indices for passing to unmanaged.
// The hull information is passed as a large floating point array.
// The format is:
// convHulls[0] = number of hulls
@ -1355,7 +1351,7 @@ public sealed class BSPrim : PhysicsActor
}
// I've collided with something
CollisionEventUpdate collisionCollection = null;
CollisionEventUpdate collisionCollection;
public void Collide(uint collidingWith, ActorTypes type, OMV.Vector3 contactPoint, OMV.Vector3 contactNormal, float pentrationDepth)
{
// m_log.DebugFormat("{0}: Collide: ms={1}, id={2}, with={3}", LogHeader, _subscribedEventsMs, LocalID, collidingWith);
@ -1367,6 +1363,8 @@ public sealed class BSPrim : PhysicsActor
_collidingGroundStep = _scene.SimulationStep;
}
// DetailLog("{0},BSPrim.Collison,call,with={1}", LocalID, collidingWith);
// if someone is subscribed to collision events....
if (_subscribedEventsMs != 0) {
// throttle the collisions to the number of milliseconds specified in the subscription
@ -1387,7 +1385,9 @@ public sealed class BSPrim : PhysicsActor
if (collisionCollection != null && collisionCollection.Count > 0)
{
base.SendCollisionUpdate(collisionCollection);
collisionCollection.Clear();
// The collisionCollection structure is passed around in the simulator.
// Make sure we don't have a handle to that one and that a new one is used next time.
collisionCollection = null;
}
}