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Rig::computeMotionAnimationState better filtering of small dt velocities.

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Only update _lastVelocity when dt is sufficiently large.
This commit is contained in:
Anthony J. Thibault 2015-10-27 18:59:02 -07:00
parent 06de087802
commit f9dc05c989
1 changed files with 6 additions and 2 deletions
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8
libraries/animation/src/Rig.cpp
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@ -446,7 +446,9 @@ void Rig::computeMotionAnimationState(float deltaTime, const glm::vec3& worldPos
glm::vec3 workingVelocity = _lastVelocity; glm::vec3 workingVelocity = _lastVelocity;
glm::vec3 positionDelta = worldPosition - _lastPosition; glm::vec3 positionDelta = worldPosition - _lastPosition;
// don't trust position delta if deltaTime is 'small'. // Don't trust position delta if deltaTime is 'small'.
// NOTE: This is mostly just a work around for an issue in oculus 0.7 runtime, where
// Application::idle() is being called more frequently and with smaller dt's then expected.
const float SMALL_DELTA_TIME = 0.006f; // 6 ms const float SMALL_DELTA_TIME = 0.006f; // 6 ms
if (deltaTime > SMALL_DELTA_TIME) { if (deltaTime > SMALL_DELTA_TIME) {
workingVelocity = positionDelta / deltaTime; workingVelocity = positionDelta / deltaTime;
@ -459,7 +461,9 @@ void Rig::computeMotionAnimationState(float deltaTime, const glm::vec3& worldPos
} }
#endif #endif
_lastVelocity = workingVelocity; if (deltaTime > SMALL_DELTA_TIME) {
_lastVelocity = workingVelocity;
}
if (_enableAnimGraph) { if (_enableAnimGraph) {