UI Path: ||Select Fire Smoke Simulator | FireSmokeSim|| > Modify panel > Simulation rollout > Preferences... button
Open Log File Location... – Opens a new Windows Explorer window at the location where the Phoenix simulation and rendering log file is saved.
Show Billboarded Viewport Icons – When this option is enabled, all Phoenix viewport wireframe nodes, except for the simulators, will always face the camera. If the option is disabled, the icons will lie flat in the XY plane.
Write Record *.slog and *.rlog Presets – When enabled, V-Ray Phoenix will automatically write preset log files when starting a simulation or render. These files are helpful for debugging when the simulation or render fails. Note that this should be disabled when submitting simulations to Deadline; the files will write to the scene directory, which can cause Deadline jobs to restart.
PFlow Cached Frame Count – Used to improve viewport performance when working with Phoenix Particle Flow operators. Note that this option uses additional memory so increasing it might overload the system's RAM.