Migration
THREE.js Alternative for CPU Canvas Rendering
If you know THREE.js, EASEL.js is intentionally legible. The names are close, the examples include paired source, and the main shift is architectural: no GPU, no shader programs, and a renderer built around painter sorting and scanline fill.
three.js alternative
three.js canvas renderer
software renderer for the browser
cpu renderer javascript
What stays familiar
The docs already map many classes to their THREE equivalents, and examples expose both EASEL.js and THREE.js source so migration cost is visible instead of hand-waved.
- Scene graph parity where it helps
- Comparable geometry, lighting, animation, and math primitives
- Migration-oriented docs with divergence notes
What is intentionally different
This renderer is for constrained software rendering, not feature parity with modern GPU engines. You trade PBR and per-pixel shading for controllable CPU-side rasterization.
- Canvas2D output instead of WebGL
- Affine UV mapping and discrete opacity
- Flat and Gouraud shading only