Three.js Geometry: Extruding 2D Shapes into 3D Models

Bringing flat designs to life in a browser requires more than just standard 3D primitives like cubes and spheres. By mastering 2D shape extrusion, you can generate custom, complex 3D meshes programmatically. In this text-based course, you will learn how to design flat vector paths and extrude them into depth-filled 3D geometries. You will gain a solid understanding of coordinate mathematics, shape paths, and rendering techniques to create unique 3D assets directly in your web applications. What you'll learn: - Understand the core concepts of 2D paths, shapes, and holes in Three.js - Extrude custom 2D shapes into 3D geometries using ExtrudeGeometry configuration options - Control bevels, segments, and extrusion depth to optimize your 3D models - Apply modern JavaScript and ES module imports to set up clean Three.js scenes - Implement responsive rendering and basic lighting to showcase your extruded models - Optimize geometry performance by managing vertex counts and face generation The journey begins with the foundational mathematics of 2D coordinate systems and vector paths before moving step-by-step through shape creation, extrusion settings, and material application. You will practice through clear code explanations and written conceptual challenges. This course is designed for web developers and designers who are new to 3D web graphics and want to expand their Three.js skills. No prior 3D modeling experience is required, though basic familiarity with HTML and JavaScript is helpful. Start building your own custom 3D web assets today.