Custom Shader in Three.js Simulates Foil Stickers

This post details creating a custom shader in Three.js that realistically simulates foil stickers, complete with angle-dependent iridescence and sparkling metallic flakes. By approximating thin-film interference and using procedural noise, the shader renders a premium holographic effect in real-time within the browser. The author provides a detailed explanation of the vertex and fragment shader code, along with an interactive demo showcasing the results.