From a2ab3b88de764112996b1e37d74c1e7b7355b1d8 Mon Sep 17 00:00:00 2001
From: teravus
Date: Wed, 3 Oct 2012 18:30:44 -0400
Subject: Soliciting for comments on smoothness of physics objects for this
 build. This introduces expected contact point hints to the ODE Collider to
 better determine when to throttle updates as excessive.   This /should/
 smooth physics objects out again, however, I cannot know every configuration
 of OpenSimulator, so I'm requesting that testers please examine this change
 on their build. Thanks!

---
 OpenSim/Region/Physics/OdePlugin/ODEPrim.cs | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

(limited to 'OpenSim/Region/Physics/OdePlugin/ODEPrim.cs')

diff --git a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
index 1b47754..e7b3b2b 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
@@ -63,6 +63,9 @@ namespace OpenSim.Region.Physics.OdePlugin
 
         private bool m_isphysical;
 
+        public int ExpectedCollisionContacts { get { return m_expectedCollisionContacts; } }
+        private int m_expectedCollisionContacts = 0;
+
         /// <summary>
         /// Is this prim subject to physics?  Even if not, it's still solid for collision purposes.
         /// </summary>
@@ -150,7 +153,7 @@ namespace OpenSim.Region.Physics.OdePlugin
 
         private PrimitiveBaseShape _pbs;
         private OdeScene _parent_scene;
-
+        
         /// <summary>
         /// The physics space which contains prim geometries
         /// </summary>
@@ -840,7 +843,7 @@ namespace OpenSim.Region.Physics.OdePlugin
             int vertexStride, triStride;
             mesh.getVertexListAsPtrToFloatArray(out vertices, out vertexStride, out vertexCount); // Note, that vertices are fixed in unmanaged heap
             mesh.getIndexListAsPtrToIntArray(out indices, out triStride, out indexCount); // Also fixed, needs release after usage
-
+            m_expectedCollisionContacts = indexCount;
             mesh.releaseSourceMeshData(); // free up the original mesh data to save memory
 
             // We must lock here since m_MeshToTriMeshMap is static and multiple scene threads may call this method at
@@ -1377,6 +1380,7 @@ Console.WriteLine("CreateGeom:");
                             {
 //Console.WriteLine(" CreateGeom 1");
                                 SetGeom(d.CreateSphere(m_targetSpace, _size.X / 2));
+                                m_expectedCollisionContacts = 3;
                             }
                             catch (AccessViolationException)
                             {
@@ -1391,6 +1395,7 @@ Console.WriteLine("CreateGeom:");
                             {
 //Console.WriteLine(" CreateGeom 2");
                                 SetGeom(d.CreateBox(m_targetSpace, _size.X, _size.Y, _size.Z));
+                                m_expectedCollisionContacts = 4;
                             }
                             catch (AccessViolationException)
                             {
@@ -1406,6 +1411,7 @@ Console.WriteLine("CreateGeom:");
                         {
 //Console.WriteLine("  CreateGeom 3");
                             SetGeom(d.CreateBox(m_targetSpace, _size.X, _size.Y, _size.Z));
+                            m_expectedCollisionContacts = 4;
                         }
                         catch (AccessViolationException)
                         {
@@ -1421,6 +1427,7 @@ Console.WriteLine("CreateGeom:");
                     {
 //Console.WriteLine("  CreateGeom 4");
                         SetGeom(d.CreateBox(m_targetSpace, _size.X, _size.Y, _size.Z));
+                        m_expectedCollisionContacts = 4;
                     }
                     catch (AccessViolationException)
                     {
@@ -1446,11 +1453,13 @@ Console.WriteLine("CreateGeom:");
                     _parent_scene.geom_name_map.Remove(prim_geom);
                     _parent_scene.actor_name_map.Remove(prim_geom);
                     d.GeomDestroy(prim_geom);
+                    m_expectedCollisionContacts = 0;
                     prim_geom = IntPtr.Zero;
                 }
                 catch (System.AccessViolationException)
                 {
                     prim_geom = IntPtr.Zero;
+                    m_expectedCollisionContacts = 0;
                     m_log.ErrorFormat("[PHYSICS]: PrimGeom dead for {0}", Name);
 
                     return false;
-- 
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