X-Plane 11.30 includes a new particle effect system that creates smoke, fire, mist and other ephemeral effects in the sim. Aircraft developers can now use this system to create highly customized and unique effects. Sim pilots may notice new, more realistic effects with heat and light, including updated contrails, heat blur, and wing tip trails. The default aircraft have all been updated to use this system, as you can see in the screenshots below!
Particle Effects in X-Plane 11.30
Jennifer Roberts