Swirling Thin-Film Effect

This material recreates the hypnotic rainbow patterns of real soap film. The colors shift with the viewing angle and the sun direction, while an animated noise flows over the surface to imitate liquid film movement.

Features

- Animated swirling iridescence (time-driven, no flipbook)

- Color shift driven by surface normal and sun direction

- Fresnel-based opacity: clear center, colorful edges

- Translucent, Lumen compatible

- Lightweight shader graph

Perfect for

Cinematics, cozy & whimsical games, magic props, fantasy scenes, product visualization.

Requirements

- Unreal Engine 5.8

- A Directional Light with "Atmosphere Sun Light" enabled AND a Sky Atmosphere in the level (the shader reads the sun vector; without it, the iridescence will not show)