A hands-on tutorial for applying custom vertex and fragment shaders to 3D meshes using Three.js in WebGL.
jam3-lesson-webgl-shader-threejs is a tutorial project that teaches developers how to write and apply custom GLSL shaders within the Three.js library for WebGL. It provides hands-on examples for creating visual effects like gradient coloring, normal visualization, and animated geometry explosions on 3D meshes. The project simplifies shader programming by integrating it with Three.js's abstraction layer.
Web developers and 3D graphics enthusiasts who have basic experience with Three.js and want to learn GPU shader programming for real-time visual effects in the browser.
It offers a structured, practical introduction to shader programming without the steep learning curve of raw WebGL, using Three.js to handle boilerplate. The lesson's incremental examples and clear explanations make advanced graphics techniques accessible to intermediate developers.
Using custom vertex and fragment shaders in ThreeJS
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The lesson progresses from basic shader setup to animated effects with clear, incremental steps, making complex GLSL concepts approachable for learners.
It thoroughly explains shader attributes, uniforms, and varyings using real examples like distance gradients, normal visualization, and exploding geometry.
Includes a step on animating shaders with JavaScript-driven uniforms, showing how to integrate shaders into dynamic Three.js scenes effectively.
Provides a clear comparison between Three.js's RawShaderMaterial and ShaderMaterial, helping users understand trade-offs for custom shader development.
Assumes familiarity with basic Three.js concepts and GLSL fundamentals, referencing another lesson for introductory shader knowledge, which may deter absolute beginners.
Relies on npm, budo, babelify, and brfs for the workflow, adding setup complexity compared to simpler, browser-based shader tutorials.
Focuses on foundational shader effects like gradients and explosions; does not cover more complex areas such as texture mapping, lighting models, or post-processing shaders.