"JRG" wrote:
> I tried to make it more interesting rotating the red
> boxes, but since it's not an I/O based particle system,
> the simulation starts from the beginning every frame
> and the final animation looked, well, weird

> please Chris tell me if I'm missing something obvious.

Well, I'm not Chris, but I might know the reason.

I think Chris' particle system has no support for moving objects, so if you
move them anyway you get strange results. For each new frame the entire
history of the particles is recalculated with the boxes aligned as they are
in the current frame. Of course history (or "the past") should be
consistent, so a history that changes with time looks very weird.

I don't recall if his system supports a moving emitter point, but I suspect
it's the same problem.

Rune
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