This procedural shader simulates light dispersion and iridescence to create metallic holographic foil effects. Built entirely without image textures, it does not require UV unwrapping and responds accurately to scene lighting and HDRIs. The node setup includes customizable parameters to adjust the wave scale, softness, and overall structure of the holographic effect. It is compatible with both Cycles and EEVEE render engines, making it suitable for product rendering, packaging visualization, and abstract motion graphics.