Is it possible to run Webots without the GUI at all?

[chengliu-LR]

Hi all, currently I am trying to use Webots as my training environment for reinforcement learning agents on a red hat linux cluster (only terminal available). So I am wondering is it possible to run Webots without the GUI at all?

[omichel]

It is possible to run Webots in batch mode (e.g., with minimized windows) or on some off-screen virtual display. Since Webots relies on OpenGL for some device rendering (cameras, lidars, range-finders, etc.), it needs a connection with OpenGL, hence a display (which may be virtual). This means that your cluster machines should have a display installed (possibly virtual, like Xvfb). More information is available here. Another solution is to run Webots in a docker in headless mode, see documentation here.