I come back on this post.The purpose of this thread is to show the use of the path tracing in SH3D.
As my computer has only 2 cores, my setup is a compromise between time and quality.
To compare, you can download the examples in the gallery and do tests with your own settings.
I have followed councils of enkonyito and here are results:
1800 x 1350 (4/3) in Q4 with R1.3.1 (AA:2/4, gI:def, dB/cP: 2/0, sS:def, nlfD/nlr: 250/1, f/sA:mitchel/bucket) in 00h 26mn .
To you to compare...