I've enjoyed playing Automobilista for several months, but there's a problem I've never been able to cure: The AI opponents sometimes "jump" sideways when they touch my car or each other. A car suddenly appears at a different location on the screen - almost as if the intermediate draw positions are not calculated. I've tried to find a good YouTube example, but this problem must be quite rare. In this video (not mine - thanks to Guimengo) the opponent comes close and "jumps" at about 2:55. "Jumps" are often much worse than in this example - quite distracting. 1. I always play offline, so I don't know whether this only happens with AI opponents - caused by AI calculations? 2. This isn't normal stuttering - the cars "jump", but the other graphics are smooth. 3. I almost always use open wheel cars. 4. I've tried changing graphics settings including opponent detail. 5. I've tried reducing the AI to AI Collision Rate="40" in the .PLR file. This helps slightly, but the cars merge together as they touch. 6. MSI Afterburner graphs - I cannot see any spikes in Frametime, CPU usage, etc. when the cars "jump". 7. I usually use VSync, but I I've seen the problem with VSync off. 8. With VSync on the GPU is not being worked hard (30-40%). No CPU threads show a high usage. 9. The problem is intermittent - in some races the cars touch smoothly. Is there anything I haven't tried? Thanks for your help.
It's a vagary of the engine's collision physics as far as I understand it. I don't really think there's much that you can do to alleviate it, but of course I'm happy for a dev to tell me otherwise
Thanks for your reply. I wonder how many people have the problem - Is the engine's collision physics affected by GPU (NVidia/AMD), CPU model, etc.
