I’m working my way through BlenderGuru’s flamethrower tutorial using 2.66, and I’m finding a weird effect in preview: as I let the particles play through, if I haven’t made any adjustments to their parameters in a couple of cycles of the default 250-frame scene, they begin to bounce weirdly on the surface–all in sync, like a crowd doing the wave.
If I adjust any of the parameters, they settle down to a more normal behavior for a few cycles, then resume the bounce. I’d assumed it was one of the “Stickiness” settings or softbody parameters that was messing up, but after trying a bunch of different settings, I’m getting disheartened. I’m enclosing the scene–does anybody know what’s up with it?
FlamethrowerParticleWeird.blend (929 KB)