Implementing a Foil Sticker Effect (4rknova.com)

Article summary

The article explains how to create a custom shader in Three.js that simulates the look of a foil sticker, including angle-dependent iridescence and sparkling metallic flakes. The shader uses vertex deformation, angle-based color shifts, and procedural flakes to achieve the desired effect. The article provides a breakdown of the implementation, including the vertex and fragment shaders, and discusses the use of procedural noise and Fresnel equations. The shader is demonstrated in a live demo, where users can modify its parameters and experiment with different configurations.

Main themes

• Shader implementation
• Foil sticker effect
• Procedural graphics
• Three.js
• Graphics programming
• Iridescence and flake simulation

What commenters say

• The use of shaders can create impressive and realistic effects, such as the foil sticker effect, and can be used in various applications, including web development and game design.
• Some people appreciate the aesthetic of foil stickers and cards, while others find it overwhelming or tacky, highlighting the subjective nature of design preferences.
• The implementation of such effects can be complex and require a deep understanding of graphics programming and mathematics, but can also be achieved using online tools and resources, such as Shadertoy.
• The use of AI in generating content, including code and graphics, raises concerns about authorship and licensing, and the potential for AI to 'launder' licenses and fail to credit original creators.
• The commercial use of creative works, including code and graphics, is a complex issue, with some arguing that it should be restricted, while others see it as a necessary freedom for open-source and free software.
• The article's use of a CC-BY-NC license may not be suitable for code, and alternative licenses, such as the GPL, may be more appropriate for software-oriented projects.
• The demonstration of the shader effect in a web browser is impressive and showcases the capabilities of modern web technologies, but some users may be concerned about the potential for overuse or misuse of such effects in design and marketing.