No module named tensorflow_graphics.math.interpolation.trilinear

Hello,

when I try to call the trilinear interpolation method I get the following error:

ModuleNotFoundError: No module named 'tensorflow_graphics.math.interpolation.trilinear'

After inspecting the interpolation module it shows, that there is no trilinear module provided:

[..., ('bspline', <module 'tensorflow_graphics.math.interpolation.bspline' from '/usr/local/lib/python3.6/dist-packages/tensorflow_graphics/math/interpolation/bspline.py'>), ('division', _Feature((2, 2, 0, 'alpha', 2), (3, 0, 0, 'alpha', 0), 8192)), ('print_function', _Feature((2, 6, 0, 'alpha', 2), (3, 0, 0, 'alpha', 0), 65536)), ('slerp', <module 'tensorflow_graphics.math.interpolation.slerp' from '/usr/local/lib/python3.6/dist-packages/tensorflow_graphics/math/interpolation/slerp.py'>), ('weighted', <module 'tensorflow_graphics.math.interpolation.weighted' from '/usr/local/lib/python3.6/dist-packages/tensorflow_graphics/math/interpolation/weighted.py'>)]

A workaround would be to implement the trilinear module/functionality besides the tfg package. But it should definitely work out of the box with tfg.

Tested with tensorflow-graphics version: 2020.5.20 and tensorflow-graphics-gpu: 1.0.0. Running on tf 2.4.0

Has anyone faced the same issue?

Start by reproducing the missing tensorflow_graphics.math.interpolation.trilinear import with the reported tensorflow-graphics and TensorFlow versions, then inspect the existing interpolation module and its bspline, slerp, and weighted entries. Done means trilinear interpolation functionality is available through the tfg package and the reported import no longer fails.