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reversing particle effects

Posted: Thu, 7th Apr 2011, 4:20am

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rockstarbd82

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i'm trying to reverse a flame thrower effect to help with a perspective shot. is it possible to reverse the flamethrower redux effect cuz i can't find a way to do it?????
Posted: Thu, 7th Apr 2011, 7:17am

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Axeman

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Reverse like it was playing backward? So the flames are going back into the flamethrower? To do that, you will have to render the effect, then import the rendered footage, reverse that, then composite it in.
Posted: Thu, 7th Apr 2011, 1:27pm

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rockstarbd82

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Axeman wrote:

Reverse like it was playing backward? So the flames are going back into the flamethrower? To do that, you will have to render the effect, then import the rendered footage, reverse that, then composite it in.
well the thing is the scene has to play forward and i have a beam effect going from the bottom left corner close up, the the right side narrowing in perspective. i want the flamethrower effect behind the beam but going down in perspective like the beam. and the only way i found i could do that is by setting the emitter point on the right side at the beams end point and somehow find a way to reverse only the flame thrower effect to give it the narrowing effect i want.

by rendering and importing the footage, are you saying that i have to set the whole scene with everything in reverse for it to work? cuz i only want the flame thrower effect to be in reverse and everything else going forward. Or are you saying just import the rendered effect only then put it back in, then reverse it?
Posted: Thu, 7th Apr 2011, 2:43pm

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Axeman

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I was thinking just render the effect, the composite it onto the scene. but you could render out whatever you need to.

From your description though, it doesn't sound like you need the effect to play in reverse, it just sounds like you need to change the size of the particles over their lifetime to make it appear that the effect is aimed in a different direction.
Posted: Thu, 7th Apr 2011, 4:15pm

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rockstarbd82

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thanks, i'll give it a try