Sionna-RT Unordered Paths Demo

[mlouielu]

Hi all,

I made a POC to show that paths results from sionna.rt.PathSolver() is unordered:

https://github.com/mlouielu/sionna-rt-unordered-paths-demo

See relative discussion at #490 #851.

[mlouielu]

While I'm still not quite sure where does the non-deterministic introduced from, is it because the parallel execution of shoot_and_bounce_inner loop?

If we use Figure 10 from the technical report, does that means the order of choosing which ray to perform specular reflection/refraction and diffuse reflection are non-deterministic due to the parallel execution?

[faycalaa]

Yes, see this post. This is because the paths are processed in parallel.