Carla: bash on border of road segments

[Unlingius]

Hi! I observe strange effect. I have created my own map with RoadRunner and imported it to Carla. Now, when my car goes at low speed from one road segment to another, i observe "push". It looks like a microbump on the road between two segments. In some cases pitch turnes up to 1 degree. What can cause this?

Also, i observe, that there is no push when my car has maximal acceleration forward. My version it because car's nose turned up in this case.
How to fix it? I tried to change some collision settings in ue scene, but it has not solved my problem.

[marcgpuig]

Hi @Unlingius
Just to make sure, are you using our Unreal autopilot (that uses physics)?

[Unlingius]

@marcgpuig No. I even don't use python client now, only UE in CarlaGameMode, and the problem is observed. In client is the same.

[marcgpuig]

Hi @Unlingius
Is the geometry flat? Or maybe do you have a strange collision somewhere?
Could you provide some short video of this for further investigation?

[Unlingius]

@marcgpuig here are short video, fbx and opendrive files. There are 4 road segments in fbx. Additionally, i observed, that only 4-1 border has that effect.
border_push.mp4.zip
scene_3.zip
upd: in client not only 4-1

[marcgpuig]

Hi @Unlingius

This is a problem in RoadRunner.

@XGodina use to have the same issue. A quick workaround is simply to change the number of polygons that RoadRunner generates to force it to recalculate the geometry. To do so, go to Tools > Scene Settings and play a bit with Curve Tolerance and the other parameters.

Hope it helps!

[Unlingius]

@marcgpuig Thank you for your reply! Now i can't try it, because my RR trial-license has expired. Maybe later.

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