For a little while now I've implemented new effects to simulate streams of fire running along the surface when a plane crashes. This involves the code which controls the handling of wreckage after destruction. One or a few of these streams can be generated at impact, running along the ground for some distance, turning into dark smoke. This happens only when there is sufficient fuel in the plane.
Recently I made the small changes necessary to allow these effects to occur in the air also. And not when the fuel tank actually explodes (as initiated under certain circumstances), but instead for such events as collision and hence break-up.
This all works nicely during play. But for some reason I haven't divined, this new effect cannot be generated during an ntrk playback. Strangely, though, the other stock effects for firey/smoking wreckage--which is part of the same code--are created. A head-scratcher!
I'm curious to know how important it is that an effect created during play should also be drawn during track playback. Now, for movie makers this shouldn't be so terrible, for there is no randomness involved; there are
no instances at all, just as there are none currently. Unlike many of my other effects which are created during track playback and for which a certain randomness is involved.
Here's an example of the new effect, they being the 'fat' streams of fire, in the air and on the surface. They're not always generated, and when they are it'll be one or more, extending for a certain distance (with some randomness), evolving into smoke that fades away a while later. I'm still fine-tuning the appearance in air; I don't want them to be
too prominent and/or
too long.