A total noob particle question

[Ezz]

Hi Folks.

This might be a stupid question, but I cant figur it out.

How can I emit a explicit amount of particles from an emitter( location )?

Say I want 13 particles to be spawned over 100 frames.

Thanks a lot folks.

Erik

[michael]

if you click on the "?" of the location node you'll find the help for this:

Birth

This operator has two methods for emitting particles. You can use these methods together or separately:

*Impulse creates a certain number of particles each time the node cooks.

*Constant creates a certain number of particles per second.

Impulse Activation

Turns impulse emission on and off. Impulse emits the number of particles in the Impulse birth rate below each time the operator cooks. A value of 0 means off, any other value means on.

Impulse Birth Rate

Number of particles to emit each time the node cooks (when Impulse activation is on).

so put

Impulse Activation = 1 on frame 1, 0 on frame 2

Impulse Birth Rate = 13

hit play and you'll see 13 particles created on frame 1

always read the help files and load the example files and play with the parameters...

[Ezz]

Hey Michael.

Thanks for your reply.

My problem is that I want a condition to control the Impulse Activision. But I cant use other

local variables like $F, $FF, $T etc.

Say I want the emission to stop if $ID >= 13

When I typing that I get an error.

Well I could use a KillPOP instead, but I thought there migth be a method to do that directly in the LocationPOP.

Erik

[michael]

what, specifically, are you trying to do? - knowing this might help

[chang]

how about these..

1. On pop network, there's MAX # OF PARTICLES.

Put 13 on it. It won't produce no more than 13.

or

2. On location pop,

CONSTANT BIRTH RATE: 13*30/100

(30 is FPS. 100 is your frame range.)

(it will generate 13 pops on frame 99.)

[Ezz]

Hi Chang.

The MAX PARTICLES on the POPnode was exactly what I was searching for

Thank you both for your help!!

Erik