Any Guidance for More Realistic Isaac Simulation? (PhysX Settings)

Omniverse Isaac Sim
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1

Hi everyone,

I’ve found that adjusting the ‘Time steps per second’ significantly affects not only the substep dt but also the physical behavior of the simulation. I am interested in achieving a more realistic Isaac simulation but lack knowledge about how to fine-tune specific settings in the ‘Advanced’ section.

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I understand that achieving realistic tuning is challenging, but I am looking for guidance on how to adjust these settings to improve simulation accuracy. Currently, I am making adjustments based on visual observation and heuristic methods, but I believe a more systematic, engineering-based approach would be more effective.

In our team, we currently set the ‘Time steps per second’ to 60-120 for task-level operations, but we hope to configure it to 1000-4000 or even higher for control-level operations. Are there any guidelines or resources that could help me better understand and configure these settings?

Thank you!

2

same problem . Is there more configuration to make it more realistic ?

3

I am also having the same issue. Pretty much the only thing i’ve found is to set Time steps per second very high (~10,000)
I’ve found disabling GPU dynamics helps, but I would prefer to use GPU dynamics to speed up parallel simulations, but when enabled it outputs horribly inaccurate simulations.