Environment rendering not supported with gymnasium

[michalgregor]

Hi, it seems that the current version of RLlib does not support environment rendering – since the gym/gymnasium package changed and there is no longer a rendering module under classic_control from which to import SimpleImageViewer.

Do you know whether there are any plans to fix this? Is there a workaround?

[szkLaszlo]

I also found this a problem. As a workaround, I would suggest creating your own renderer, but I debugged the code and found that although rllib supports a custom rendering option, at the initialization it is not checked and since the import fails it turns off rendering. They need to fix how the env_runner_v2.py calls the env.render() or does not turn off rendering after the failed import. I am also interested in a fix.

[Rohan138]

Taking a look.

[FangyangJz]

Meet the same problem.

[emmaai]

same problem mark 👀

[adam-crowther]

+1

[Tim11011]

+1

[Chasingdreams6]

Is this problem solved now? I met the same problem when I using "Rllib evaluate --render" 😢

[LaurenYTaylor]

+1

[dermuesli]

Any update on this open issue? Seems like an fundemental feature (allowing to render and visually check RL policy performance by setting render_env=True) gone missing more than a year ago (or is there any workaround I missed?) ... @sven1977

[alvaro-serra]

+1