...
A very simple, yet effective method is to manage emission with an → expression:
- Right-click on “Stream” and choose “Open curve”. The “Curve Editor” is opened.
- In the empty field to the left of "Delete Expression" enter:
if(f>49,0,1) - This expression says that if the current frame is greater than 49 the “Stream” option will be set from “Yes” to “No”.
- These two states are represented as binary numbers here – 1 and 0.
Standard Particle Emitters
...
Defining a Volume
Similar to HyFLIP emitters, SPH-PBF some emitters let you define a certain volume that is filled with particles:
- Emitter node > Node Params > emitter-specific section (e.g. “Circle”) > Volume
- “Sphere” and “Fill Object” have a built-in fill option.
Speed
...
Animation and Expressions
The next two methods are exactly the same as described under “HyFLIP” and use animation keys and an → expression. The only difference is that with SPH standard particle emitters the “Speed” parameter is animated and set to 0:
...
- Emitter node > Node Params > Particles > Max Particles
- Just enter a number, e.g. 75000, and the emitter will stop to create new particles once this limit has been reached . Please bear in mind that you will normally (in most cases you get a few more particles).
Dyverso Emitters
With these fluid emitters you have exactly the same possibilities as with shown under "Standard Particle Emitters" – only the "Particle Limit" method is not supported.