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expression help.. emission of particles from other particle

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gamesed

gamesed
Posted: 23 December 2009 12:12 AM

Location: Bangalore
Total Posts: 21
Joined: 26 September 2009 05:51 AM

hi, i am working on a scene where particles (lets call it particleA) are emitting from another set of particles( lets call this particleB). the problem is ,i want particleA to emit from each particle when that each particle of ParticleB attains a certain age. what i have written right now in the expression editor is

if (particleB.age (more than or equal to) 1)
{
emitterA = 100;
}
else
emitterA = 0;

But ofcourse this is wrong as it takes the average and emits at a a certain time even though the particle hasn’t achieved the age. so pls some one help me with this.
thank you,
chetan.

Chetan.V|Fx Artist
http://www.gamesedfx.com

Replies: 1

so sorry about that, its not taking the sign for some reason

Author: gamesed

Replied: 23 December 2009 12:20 AM

THNKR

THNKR
Posted: 23 December 2009 03:28 AM

Location: Toronto
Total Posts: 1572
Joined: 17 August 2006 10:49 AM
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This is how you emit a particle (B, in this example) from A if A has reached the age of 2 AND A hasn’t already emitted a particle.

int $id= particleAShape.particleId;

global int $burned[];

if (particleAShape.age >2.0 && $burned[$id] == 0 ) {

 float $pos[] = particleAShape.position;

 emit -position $pos[0] $pos[1] $pos[2] -object particleB;

 $burned[$id] = 1;
}

Replies: 1

hi, thanks .. i got what i was looking for.. had made some stupid mistake....but any ways thanks fr giving ur time for this..

Author: gamesed

Replied: 23 December 2009 06:53 AM

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