emitter runs out of particles it will wait until more are available before emitting again. 
		<br><br>
		<span class="parameters">Parameters:
		</span>
		<br>fluidID - ID number of the fluid the given emitter belongs to.
		<br>emitterIndex - Index of the emitter, the index was returned when the emitter was created, if there is only one emitter for the given fluid then the index will be 0.
		<br>
		<br>
		<br>
		<span class="returns">Returns:
		</span>
		<br>- Rate the particles are emitted.
		<br>
	</BODY>
