Dario Ortisi shows how to run particles across a surface in Bifrost, making an Eye Iris using particle trails.

Senior 3D Artist Dario Ortisi shows his setup for creating an eye trails effect that mimics the look of a detailed Iris. Inspired by a Cinema 4D example, Dario shows how to create a similar outcome with Bifrost in Maya.

On seeing a Cinema 4D X-Particles effect, Stormz shows how to recreate the widespread impact of having particles flow along the surface of another object in Houdini. Visit that tutorial here.