An infinite canvas tutorial

This tutorial covers a basic 2D graphics rendering implementation based on WebGL / WebGPU:

• Lesson 2 - Draw a circle: Learn WebGL basics, use SDF (Signed Distance Field) to render anti-aliased circles, understand coordinate transformation and color blending in fragment shaders
• Lesson 5 - Grid: Implement infinitely extending grid background, learn camera transformation matrices, handle conversion between screen and world coordinates
• Lesson 9 - Drawing ellipse and rectangle: Use SDF to draw ellipses and rounded rectangles, implement stroke and fill, support multiple corner radius configurations
• Lesson 12 - Draw polyline: Implement polyline rendering with butt, round, and square line caps, plus miter, round, and bevel line joins
• Lesson 13 - Drawing path and sketchy style: Integrate Rough.js for sketchy rendering, support hachure, solid, dots fill styles with adjustable roughness
• Lesson 15 - Text rendering: Implement text shaping using Canvas API, support text rendering, font loading, kerning, and emoji
• Lesson 16 - Text advanced features: Implement word wrap, multi-line text alignment (left/center/right), max lines limit and text overflow handling
• Lesson 25 - Drawing mode and brush: Draw rectangles and arrows, use pencil, brush, laser pointer and eraser tools
• Lesson 30 - Post-processing and render graph: Build Render Graph system, implement Gaussian blur, shadows, glow post-processing effects, support multi-pass rendering pipeline
• Lesson 34 - Frame and clip: Implement Frame container with clip mode (cropping overflow) and mask effects
• Lesson 35 - Tile-based rendering: Use tile-based rendering to optimize large-scale scenes

Also includes UI components implemented using Web Components technology:

• Lesson 7 - Web UI: Build Web Components using Lit framework, implement property binding, event system and Shadow DOM encapsulation
• Lesson 18 - Refactor with ECS: Refactor core system using ECS (Entity-Component-System) architecture, implement data-driven design
• Lesson 24 - Context menu and clipboard: Implement custom context menu, integrate Clipboard API for copy/cut/paste, support SVG and PNG export

And some interesting topics:

• Lesson 17 - Gradient and pattern: Implement linear, radial and conic gradients with multi-stop support, plus pattern fills
• Lesson 19 - History: Implement Command Pattern history system with undo, redo and batch transaction support
• Lesson 22 - VectorNetwork: Implement Vector Network data structure, support Figma-style vector path editing including node connection, path merging and boolean operations

The most important thing:

• Lesson 28 - Integrating with AI: Integrate Vercel AI SDK for intelligent drawing assistant, support natural language shape generation, image vectorization, layout suggestions and AI chat

Gallery ​

A few effects and features from the project and app (post-processing, rendering, tools, and integrations).