I am consistently running out of memory when recording long-ish movies (using the Animation tool) on a Macbook pro with 16GB RAM. Admittedly there are a lot of atoms in the model I am using (~120,000), but most are not displayed (only ribbons).

Chimera is consistently crashing at about the 300 frame mark and looking at the activity monitor during the recording I can see memory pressure gradually increasing until Chimera freezes (which is generally not recoverable).

Is there any way to reduce the amount of memory required for movie recording? Will deleting all undisplayed atoms help? Is there some way to perform these operations on disk rather than in memory (most likely a silly question)?