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yuriythebest
06-21-2008, 01:10 PM
right, how do I change particle behaviors from having to move the emitter so the flames shoot our instead so that the flames shoot out by themselves? I have made a lil flash to demonstrate what I mean:

http://img113.imageshack.us/my.php?image=particleskg6.swf

yuriythebest
06-23-2008, 04:45 PM
here is an image:

http://img171.imageshack.us/img171/8214/emitterrt1.jpg (http://imageshack.us)

Kai01W
06-23-2008, 05:26 PM
Honestly, I've never done much with the particles in combustion, so there might be a more straightforward solution. If not: why not simply take the animation on the emitter and apply it in reverse to the whole precomp (simply copy/pasting/inverting keyframes) that way you stabilized the emitter and smoke moves out...

-k

PiXeL_MoNKeY
06-23-2008, 07:26 PM
Velocity is the parameter that moves the particles away from the emitter, similar to the speed parameter of particles in 3ds Max. Look at the Water Jet default for an example, it uses velocity and weight to push the particles from the emitter and down.

-Eric

yuriythebest
06-23-2008, 08:48 PM
Velocity is the parameter that moves the particles away from the emitter, similar to the speed parameter of particles in 3ds Max. Look at the Water Jet default for an example, it uses velocity and weight to push the particles from the emitter and down.

-Eric

thanks! Didn't know the importance of the Weight parameter. I now have a smoke trail that goes up. However when I try to adjust the emission angle parameter nothing happens- how do I make it go horizontally? One way of course would be to render it on a black background and then composite it, but is there a proper way? my progress thus far:

http://img108.imageshack.us/img108/9019/meteorui0.jpg (http://imageshack.us)

PiXeL_MoNKeY
06-24-2008, 02:08 AM
Weight will push the particles up or down. You should use velocity to move the particles away from the emitter, not weight. Weight is similar to gravity in Max, if you make it too strong the particles will only move up and down, little or no horizontal movement.

For compositing just place the in put as a transparent solid and place that on top of the footage in a Compositing node. You could rotate the layer if needed.

-Eric

yuriythebest
06-24-2008, 08:58 PM
just place the in put as a transparent solid


can you please clarify how to do this step- can't find the input settings anywhere

yuriythebest
06-25-2008, 01:00 PM
ahah figured out how to add a transparent story. After overcoming several glitches (first everything would still be grey to the point of editlessness, and then for some reason the smoke would disappear every 10 fames or so when rendered but by redoing it several times I managed to get a working version :) many thanks as always!

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06-25-2008, 01:00 PM
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