TIAN Feng

``` # the order is env_0/object_0, env_0/object_1, env_0/object_..., env_1/object_0, env_1/object_1, ... # return a flat tensor of indices if isinstance(object_ids, slice): object_ids = self._ALL_OBJ_INDICES elif isinstance(object_ids, Sequence): object_ids = torch.tensor(object_ids,...

Twice usage of i in nested loop

1

 I found in the loop of renderCUDA() in backward.cu, you use i twice in a nested loop. I wonder if it may cause an issue, because it seems the...

Question about rho3, rho2 and depth computation choice

6

The depth intersection is computed by `float depth = (rho3d