There are mainly two new shapes being supported to be read from .pbrt files:

NURBS (Non-Uniform Rational B-Splines) - see shapes/nurbs Subdivision Surfaces - see shapes/loopsubdiv

The related issues are:

I started to implement some Python scripts for Blender to export to rs_pbrt . This is basically a simple way to create basic scene files for certain features of the renderer I'm working on. The repository also contains 4 new test scenes related to those topics.

See also (Release Notes for v0.4.4):

GitHub wahn/rs_pbrt Rust crate to implement at least parts of the PBRT book's C++ code. See also https://www.rs-pbrt.org/about ... - wahn/rs_pbrt

Here some subdivision surfaces in action: