More confusion. Looking closer at the actual code, there are <20k lines of C++ code. For comparison, the Bullet physics engine clocks in at over 700k lines. What does Habitat actually do?
From what I understand, this is not a physics engine (at least in its current form). This is a bare metal 3D environment rendering engine particularly optimized for speed; speed being especially important for training deep reinforcement learning agents for instance.
Physics would be a layer above this; I imagine Bullet can be integrated within Habitat, but will come with significant hit on speed. These choices depend quite a bit on the task being studied.
Physics would be a layer above this; I imagine Bullet can be integrated within Habitat, but will come with significant hit on speed. These choices depend quite a bit on the task being studied.