How camera sensor works in mujoco?

[sanjay-swain]

Hello, I am new to mujoco. I have previously worked on gazebo and there a separate sensor for camera was available. I have searched in the documentation and it seems like camera is under body but not under sensor? Is there any specific reason for this? Can you tell me if there are any differences on how they functions?

[yuvaltassa]

Sensors are floats computed by the engine on CPU at every timestep (default is 2ms), camera images are bytes computed by openGL on GPU, usually at a much lower rate (30 or 60 Hz). It doesn't really make sense to add them as sensors.

We've had discussions about this before, search the issues.