BulletSim: fix problem with not convex hulling large objects by creating unit meshes and always scaling in Bullet

1 files changed, 5 insertions, 3 deletions

diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
index 04cb452..c4999f6 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
@@ -1013,8 +1013,8 @@ public sealed class BSPrim : PhysicsActor
             // m_log.DebugFormat("{0}: CreateGeom: calling CreateHull. lid={1}, key={2}, hulls={3}", LogHeader, _localID, _hullKey, hullCount);
             BulletSimAPI.CreateHull(_scene.WorldID, _hullKey, hullCount, convHulls);
             _shapeType = ShapeData.PhysicsShapeType.SHAPE_HULL;
-            // meshes are already scaled by the meshmerizer
-            _scale = new OMV.Vector3(1f, 1f, 1f);
+            // Let the object be scaled by Bullet (the mesh was created as a unit mesh)
+            _scale = _size;
         }
         return;
     }
@@ -1138,7 +1138,9 @@ public sealed class BSPrim : PhysicsActor
         if (_scene.NeedsMeshing(_pbs))  // linksets with constraints don't need a root mesh
         {
             // m_log.DebugFormat("{0}: RecreateGeomAndObject: creating mesh", LogHeader);
-            _mesh = _scene.mesher.CreateMesh(_avName, _pbs, _size, _scene.MeshLOD, _isPhysical);
+            // Make the mesh scaled to 1 and use Bullet's scaling feature to scale it in world
+            OMV.Vector3 scaleFactor = new OMV.Vector3(1.0f, 1.0f, 1.0f);
+            _mesh = _scene.mesher.CreateMesh(_avName, _pbs, scaleFactor, _scene.MeshLOD, _isPhysical);
         }
         else
         {