Niagara Emitters & Systems
One of the biggest differences between Cascade and Niagara is how you build emitters. When using Cascade, emitters are built as a self-contained unit. While this made the emitters easy to place and spawn, it also made it hard to share behavior between different emitters, or to update emitters, because everything had to be done manually. Niagara changes all of this, by giving visual effects artists the ability to control, add, or modify any part of a visual effects behavior right down to the pixel level. To accomplish this, Niagara particle systems have been broken up into the following two parts:
- Niagara Emitters: This is a single visual effect that will be combined with other Niagara Emitters to make a Niagara System. If we are making a fire effect, the Niagara Emitters would be each of the different elements that make up the fire effect such as the smoke, fire, distortion, and sparks.
- Niagara Systems: This contains everything needed for a single effect. Continuing with our fire example, this would be the completed fire effect that contains the Niagara Emitters for the smoke, fire, distortion, and sparks.