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two minor changes, hopefully before release:

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- reset randseed, which should make simulations more predictable
- re-activate substeps (for more accurate simulations)
This commit is contained in:
Erwin Coumans
2007-05-07 17:10:44 +00:00
parent f638895aad
commit d814e2b9c6
2 changed files with 9 additions and 2 deletions
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3
extern/bullet2/src/BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.cpp vendored
View File

@@ -104,6 +104,7 @@ bool MyContactDestroyedCallback(void* userPersistentData)
btSequentialImpulseConstraintSolver3::btSequentialImpulseConstraintSolver3() btSequentialImpulseConstraintSolver3::btSequentialImpulseConstraintSolver3()
{ {
btSeed2 = 0;
setSolverMode(SOLVER_RANDMIZE_ORDER); setSolverMode(SOLVER_RANDMIZE_ORDER);
} }
@@ -111,6 +112,8 @@ btSequentialImpulseConstraintSolver3::btSequentialImpulseConstraintSolver3()
btSequentialImpulseConstraintSolver::btSequentialImpulseConstraintSolver() btSequentialImpulseConstraintSolver::btSequentialImpulseConstraintSolver()
:m_solverMode(SOLVER_USE_WARMSTARTING) :m_solverMode(SOLVER_USE_WARMSTARTING)
{ {
btSeed2 = 0;
gContactDestroyedCallback = &MyContactDestroyedCallback; gContactDestroyedCallback = &MyContactDestroyedCallback;
//initialize default friction/contact funcs //initialize default friction/contact funcs

8
source/gameengine/Physics/Bullet/CcdPhysicsEnvironment.cpp
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@@ -458,8 +458,12 @@ bool CcdPhysicsEnvironment::proceedDeltaTime(double curTime,float timeStep)
ctrl->SynchronizeMotionStates(timeStep); ctrl->SynchronizeMotionStates(timeStep);
} }
m_dynamicsWorld->stepSimulation(timeStep,0);//perform always a full simulation step float subStep = timeStep / float(m_numTimeSubSteps);
for (i=0;i<m_numTimeSubSteps;i++)
{
m_dynamicsWorld->stepSimulation(subStep,0);//perform always a full simulation step
}
numCtrl = GetNumControllers(); numCtrl = GetNumControllers();
for (i=0;i<numCtrl;i++) for (i=0;i<numCtrl;i++)
{ {