I’m familiar with the general concept from Poser 5. There it runs the simulation for a specified number of frames prior to the beginning of the actual animation. But when I noticed it and tried it in Blender it didn’t do anything.
I did a google search and it led me to an archived post explaining how to use it. I followed the instructions (negative start frame for the cache, set current frame to cache start - 1, and baked) and it did exactly what I needed it to.
However, I realized that preroll was still at 0 since I forgot to change it. I set it to 100 frames, baked again, and there was absolutely no difference. The cloth acted the same way, which I expected, but it still had 172 frames in memory so I don’t think it’s a memory saving feature.
Is it just not hooked up to anything at the moment or is there something I’m missing?