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add "latency motion state interpolation", using previous frame/current, instead of current->next

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See Demos/ForkLiftDemo for example (F7 to toggle, use single-frame stepping, press 'i' and 's' to see the effect)
This commit is contained in:
erwin.coumans@gmail.com
2013-10-24 00:13:43 +00:00
parent a1c962192c
commit f5320e4106
3 changed files with 56 additions and 25 deletions
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13
src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h
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@@ -53,6 +53,7 @@ protected:
//for variable timesteps
btScalar m_localTime;
btScalar m_fixedTimeStep;
//for variable timesteps
bool m_ownsIslandManager;
@@ -64,6 +65,8 @@ protected:
int m_profileTimings;
bool m_latencyMotionStateInterpolation;
btAlignedObjectArray<btPersistentManifold*> m_predictiveManifolds;
virtual void predictUnconstraintMotion(btScalar timeStep);
@@ -216,6 +219,16 @@ public:
///Preliminary serialization test for Bullet 2.76. Loading those files requires a separate parser (see Bullet/Demos/SerializeDemo)
virtual void serialize(btSerializer* serializer);
///Interpolate motion state between previous and current transform, instead of current and next transform.
///This can relieve discontinuities in the rendering, due to penetrations
void setLatencyMotionStateInterpolation(bool latencyInterpolation )
{
m_latencyMotionStateInterpolation = latencyInterpolation;
}
bool getLatencyMotionStateInterpolation() const
{
return m_latencyMotionStateInterpolation;
}
};
#endif //BT_DISCRETE_DYNAMICS_WORLD_H