Unreal's Particle Systems are edited via Cascade, a fully integrated and modular particle effects editor. Cascade offers real-time feedback and modular effects editing, allowing fast and easy creation of even the most complex effects.
Particle systems are also very closely related to the various materials and textures applied to each particle. The primary job of the particle system itself is to control the behavior of the particles, while the specific look and feel of the particle system as a whole is often controlled by way of materials. As such, we have included a shortcut to the material documentation below.