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IDProjectCategoryView StatusDate SubmittedLast Update
0007775opensim[REGION] OpenSim Corepublic2015-12-01 12:432015-12-01 19:41
Assigned To 
PlatformDual Quad core Xeon 3ghzOSWindows 64 32 gbOS VersionServer 2012
Product Versionmaster (dev code) 
Target VersionFixed in Version 
Summary0007775: "Rubber band" effect happens every 60 seconds when driving physical vehciles in Bulletsim or ubOde on rough terrain.
Description"Rubber band" effect when driving physical vehciles in Bulletsim or ubOde. Every 60 seconds the vehicle appears to stop getting position updates for a second or two. When this happens, the vehicle will continue along the path it was on before this happened. The vehicle may go underground or up in the air, then just as sudden, it will pop back to the original position and continue as if nothing happened. It feels like the vehicle position stops being updated for a second or two, then it returns to normal.

This behavior makes it very difficult to have races that are meaningful. This behavior often makes the driver loose control and go off the road.
Steps To ReproduceGo to a sim running the latest dev master and drive a physical vehicle around for a while on uneven/rough terrain until you see the "rubber band" effect happen. It is harder to notice when driving on a flat track because the vehicle is normally not changing direction of height nearly as often as on rough terrain, but it is still happening at the same frequency.
Additional InformationIt does this in both Bulletsim and ubOde and it did not do this in Bulletsim before the avn merge code was started. It does this regardless of the viewer that is being used.

I have heard complaints about this from others who use different hosting services or host their own, so I know the issue is not isolated to my sims.
TagsNo tags attached.
Git Revision or version numberb1c4f6915439c8f3469ba6933472ccf96463af59
Run Mode Grid (1 Region per Sim)
Physics EngineBulletSim
Script Engine
Environment.NET / Windows64
Mono VersionNone
ViewerAll viewers
Attached Files

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-  Notes
kenvc (reporter)
2015-12-01 13:46

I just timed this with a stopwatch several times. On OSGrid International Sailing (ubOde) this issue happens at exactly 60 second intervals the best I can tell with a stopwatch.
UbitUmarov (administrator)
2015-12-01 19:41

is there a neighbor region down ?

- Issue History
Date Modified Username Field Change
2015-12-01 12:43 kenvc New Issue
2015-12-01 13:29 kenvc Description Updated View Revisions
2015-12-01 13:46 kenvc Note Added: 0029776
2015-12-01 19:24 kenvc Summary "Rubber band" effect happens every minute or so when driving physical vehciles in Bulletsim or ubOde. => "Rubber band" effect happens every 60 seconds when driving physical vehciles in Bulletsim or ubOde on rough terrain.
2015-12-01 19:24 kenvc Description Updated View Revisions
2015-12-01 19:24 kenvc Steps to Reproduce Updated View Revisions
2015-12-01 19:41 UbitUmarov Note Added: 0029778

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