...
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.
...