Hello
I’m rendering animation with mowing objects using brute force as primary bouces and light cache as secondary.
In lightcache settings i ticked use camera path.
Can i precalculate lightcache first and then use saved LC for rendering whole animation or i must render lightcache in single frame mode for every frame.
Nope - use camera path will make a single non moving lightcache for the entire duration of your animation. For scenes where you have moving objects you use light cache set to single frame, don’t save the file or precalculate it, and then brute force for primaries with either brute force subdivs turned up to get rid of noise or better aa to get rid of noise.