Closed lvjiahui closed 3 years ago
Tutorial says I don't need to call requires_gradient()
when I use optimizer
. If I call it manually the error is still the same.
Hi @lvjiahui,
differentiation of shapes in Mitsuba 2 requires a plugin that is based on a separate paper (http://rgl.epfl.ch/publications/Loubet2019Reparameterizing). We have not released this plugin yet, but we are about to do so. I will ping this ticket once it's ready.
Cheers, Wenzel
Hi @wjakob,
will this plugin also provide a possibility to learn the weight texture for a blended material? And is there a rough timeline for the release? Thanks!
Any update on this?
Hi @mmgutsche, You can track progress on this feature in PR #44.
In Inverse rendering example
invert_cbox.py
andinvert_bunny.py
, if I change the differentiated parameters tovertex_positions
( which have asterisk (*) on the left ), I receive the following error:I wonder why no gradients when they are differentiable? How should I differentiate with them? Thanks!