[QUESTION] can `wp.volume_world_to_index` transform be modified in warp?

[jenkspt]

When using wp.Volume.load_from_numpy - is there any way change the transform used by wp.volume_world_to_index? I can see the transform is initialized to the identity transform at volume.get_grid_info().translation and volume.get_grid_info().transform_matrix but I can't figure out how to modify these in warp.

[gdaviet]

Hi @jenkspt, there is currently no possibility to modify the transform after the volume is built; I agree it would be sensible to provide a way to do so. However it is possible to pass custom translation and transform attributes to wp.Volume.allocate_by_voxels() and wp.Volume.allocate_by_tiles(), the latter being the underlying allocation routine used by wp.Volume.load_from_numpy().