A set of exhaust particles (made using cascade particle editor) meant to be attached to/used with your spaceships, vehicles, rockets...I made them with performance in mind- textures are 256x256 and 512x512, used instanced materials whenever possible, kept the material instructions as low as possible, and created custom LODs. The exhaust particles are about one meter in diameter. https://www.youtube.com/watch?v=O2_6unSqi4c