$traceraypath
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$traceraypath is the command to output the ray's path. Because recording the ray path could wast a huge space if many photons are ran. Therefore, the software will only output certain photons.
The command is
$traceraypath N_photons
N_photons means the program save the ray path every N_photons.
For example:
$traceraypath 100
The $traceraypath setting in GUI interface is here
Press Ray Tracing, check the box, and fill in the field as needed!
