Hi @Taoning_Wang1,
There seems to be an issue when reading some sensor files when using n > 1 on Windows. Here is the rfluxmtx call and the error.
rfluxmtx -I -ab 2 -ad 512 -c 1 -faf -n 16 -y 221 - sky.dome -i scene.oct < grid.pts > results.dc
rcontrib: system - PeekNamedPipe() failed: No such file or directory
Do you know what the issue is? Let me know if you have any questions. If I set -n to 1 or just remove -n completely it runs without issues.
I am using the latest version: RADIANCE 6.1a 2026-02-22 LBNL (6.1.a69eae17fd).
Here is a downloadable sample. There is another sensor file in the ZIP, 884.pts, which is not causing any issues: Google Drive