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authorUbitUmarov2012-04-23 20:16:53 +0100
committerUbitUmarov2012-04-23 20:16:53 +0100
commit5a8fdc8a0b79c14382872571b113b5c5559083c4 (patch)
treedeeda42505621facef6c158bce472b81d5b1ab36 /OpenSim/Region
parentubitODE - several changes... (diff)
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ubitODE - do own timing control (as chODE does) until heartbeat does it right
Diffstat (limited to '')
-rw-r--r--OpenSim/Region/Physics/UbitOdePlugin/ODEPrim.cs8
-rw-r--r--OpenSim/Region/Physics/UbitOdePlugin/OdeScene.cs47
2 files changed, 34 insertions, 21 deletions
diff --git a/OpenSim/Region/Physics/UbitOdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/UbitOdePlugin/ODEPrim.cs
index 7c0bbef..dc6c18d 100644
--- a/OpenSim/Region/Physics/UbitOdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/UbitOdePlugin/ODEPrim.cs
@@ -695,7 +695,7 @@ namespace OpenSim.Region.Physics.OdePlugin
695 m_PIDTau = 0; 695 m_PIDTau = 0;
696 else 696 else
697 { 697 {
698 float mint = (0.05f > _parent_scene.ODE_STEPSIZE ? 0.05f : _parent_scene.ODE_STEPSIZE); 698 float mint = (0.05f > m_timeStep ? 0.05f : m_timeStep);
699 if (value < mint) 699 if (value < mint)
700 m_PIDTau = mint; 700 m_PIDTau = mint;
701 else 701 else
@@ -723,7 +723,7 @@ namespace OpenSim.Region.Physics.OdePlugin
723 m_PIDHoverTau = 0; 723 m_PIDHoverTau = 0;
724 else 724 else
725 { 725 {
726 float mint = (0.05f > _parent_scene.ODE_STEPSIZE ? 0.05f : _parent_scene.ODE_STEPSIZE); 726 float mint = (0.05f > m_timeStep ? 0.05f : m_timeStep);
727 if (value < mint) 727 if (value < mint)
728 m_PIDHoverTau = mint; 728 m_PIDHoverTau = mint;
729 else 729 else
@@ -801,7 +801,7 @@ namespace OpenSim.Region.Physics.OdePlugin
801 { 801 {
802 if (force.IsFinite()) 802 if (force.IsFinite())
803 { 803 {
804 AddChange(changes.AddForce, force / _parent_scene.ODE_STEPSIZE); 804 AddChange(changes.AddForce, force * m_invTimeStep);
805 } 805 }
806 else 806 else
807 { 807 {
@@ -814,7 +814,7 @@ namespace OpenSim.Region.Physics.OdePlugin
814 { 814 {
815 if (force.IsFinite()) 815 if (force.IsFinite())
816 { 816 {
817 AddChange(changes.AddAngForce, force / _parent_scene.ODE_STEPSIZE); 817 AddChange(changes.AddAngForce, force * m_invTimeStep);
818 } 818 }
819 else 819 else
820 { 820 {
diff --git a/OpenSim/Region/Physics/UbitOdePlugin/OdeScene.cs b/OpenSim/Region/Physics/UbitOdePlugin/OdeScene.cs
index 1d9fa93..cf74f14 100644
--- a/OpenSim/Region/Physics/UbitOdePlugin/OdeScene.cs
+++ b/OpenSim/Region/Physics/UbitOdePlugin/OdeScene.cs
@@ -189,9 +189,12 @@ namespace OpenSim.Region.Physics.OdePlugin
189 private const uint m_regionHeight = Constants.RegionSize; 189 private const uint m_regionHeight = Constants.RegionSize;
190 190
191 public float ODE_STEPSIZE = 0.020f; 191 public float ODE_STEPSIZE = 0.020f;
192 public float HalfOdeStep = 0.01f;
192 private float metersInSpace = 25.6f; 193 private float metersInSpace = 25.6f;
193 private float m_timeDilation = 1.0f; 194 private float m_timeDilation = 1.0f;
194 195
196 DateTime m_lastframe;
197
195 public float gravityx = 0f; 198 public float gravityx = 0f;
196 public float gravityy = 0f; 199 public float gravityy = 0f;
197 public float gravityz = -9.8f; 200 public float gravityz = -9.8f;
@@ -485,6 +488,8 @@ namespace OpenSim.Region.Physics.OdePlugin
485 } 488 }
486 } 489 }
487 490
491 HalfOdeStep = ODE_STEPSIZE * 0.5f;
492
488 ContactgeomsArray = Marshal.AllocHGlobal(contactsPerCollision * d.ContactGeom.unmanagedSizeOf); 493 ContactgeomsArray = Marshal.AllocHGlobal(contactsPerCollision * d.ContactGeom.unmanagedSizeOf);
489 GlobalContactsArray = GlobalContactsArray = Marshal.AllocHGlobal(maxContactsbeforedeath * d.Contact.unmanagedSizeOf); 494 GlobalContactsArray = GlobalContactsArray = Marshal.AllocHGlobal(maxContactsbeforedeath * d.Contact.unmanagedSizeOf);
490 495
@@ -564,6 +569,7 @@ namespace OpenSim.Region.Physics.OdePlugin
564 // let this now be real maximum values 569 // let this now be real maximum values
565 spaceGridMaxX--; 570 spaceGridMaxX--;
566 spaceGridMaxY--; 571 spaceGridMaxY--;
572 m_lastframe = DateTime.UtcNow;
567 } 573 }
568 574
569 internal void waitForSpaceUnlock(IntPtr space) 575 internal void waitForSpaceUnlock(IntPtr space)
@@ -1685,24 +1691,30 @@ namespace OpenSim.Region.Physics.OdePlugin
1685 /// <returns></returns> 1691 /// <returns></returns>
1686 public override float Simulate(float timeStep) 1692 public override float Simulate(float timeStep)
1687 { 1693 {
1694
1695 DateTime now = DateTime.UtcNow;
1696 TimeSpan SinceLastFrame = now - m_lastframe;
1697 m_lastframe = now;
1698 timeStep = (float)SinceLastFrame.TotalSeconds;
1699
1688 // acumulate time so we can reduce error 1700 // acumulate time so we can reduce error
1689 step_time += timeStep; 1701 step_time += timeStep;
1690 1702
1691 if (step_time < ODE_STEPSIZE) 1703 if (step_time < HalfOdeStep)
1692 return 0; 1704 return 0;
1693 1705
1694 if (framecount >= int.MaxValue) 1706 if (framecount < 0)
1695 framecount = 0; 1707 framecount = 0;
1696 1708
1697 framecount++; 1709 framecount++;
1698 1710
1699 int curphysiteractions = m_physicsiterations; 1711 int curphysiteractions;
1700 1712
1713 // if in trouble reduce step resolution
1701 if (step_time >= m_SkipFramesAtms) 1714 if (step_time >= m_SkipFramesAtms)
1702 { 1715 curphysiteractions = m_physicsiterations / 2;
1703 // if in trouble reduce step resolution 1716 else
1704 curphysiteractions /= 2; 1717 curphysiteractions = m_physicsiterations;
1705 }
1706 1718
1707 int nodeframes = 0; 1719 int nodeframes = 0;
1708 1720
@@ -1722,8 +1734,7 @@ namespace OpenSim.Region.Physics.OdePlugin
1722 base.TriggerPhysicsBasedRestart(); 1734 base.TriggerPhysicsBasedRestart();
1723 } 1735 }
1724 1736
1725 1737 while (step_time >= HalfOdeStep && nodeframes < 10) //limit number of steps so we don't say here for ever
1726 while (step_time >= ODE_STEPSIZE && nodeframes < 10) //limit number of steps so we don't say here for ever
1727 { 1738 {
1728 try 1739 try
1729 { 1740 {
@@ -1905,15 +1916,17 @@ namespace OpenSim.Region.Physics.OdePlugin
1905 d.WorldExportDIF(world, fname, physics_logging_append_existing_logfile, prefix); 1916 d.WorldExportDIF(world, fname, physics_logging_append_existing_logfile, prefix);
1906 } 1917 }
1907 1918
1908 // think time dilation is not a physics issue alone.. but ok let's fake something 1919 // think time dilation as to do with dinamic step size that we dont' have
1909 if (step_time < ODE_STEPSIZE) // we did the required loops 1920 // even so tell something to world
1921 if (nodeframes < 10) // we did the requested loops
1910 m_timeDilation = 1.0f; 1922 m_timeDilation = 1.0f;
1911 else 1923 else if (step_time > 0)
1912 { // we didn't forget the lost ones and let user know something 1924 {
1913 m_timeDilation = 1 - step_time / timeStep; 1925 m_timeDilation = timeStep / step_time;
1914 if (m_timeDilation < 0) 1926 if (m_timeDilation > 1)
1915 m_timeDilation = 0; 1927 m_timeDilation = 1;
1916 step_time = 0; 1928 if (step_time > m_SkipFramesAtms)
1929 step_time = 0;
1917 } 1930 }
1918 } 1931 }
1919 1932