Artisanal Rendering: Make Your Own Computer Art!
summary
Rust code produces images from a pixel buffer using a reusable pixel-canvas crate and examples include geometric patterns, a ray‑marched terrain and an interactive Julia fractal. Ray marching uses a simple backstep refine to remove banding, normals come from a sampled gradient, and soft shadows use multiple shadow rays. Performance: naive fractal renders ~500 ms; adding per‑row threads drops it to ~200 ms; SIMD (packing complex numbers into lanes) yields ~4× speedup; threads+SIMD reach about 10× faster overall. SIMD-packed complex lanes
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chapters (11)
- 0:00Introduction and background
- 1:31Basics of pixel art
- 4:50Gathering and scattering techniques
- 8:02Ray marching fundamentals
- 11:53Adding lighting and details
- 14:32Performance challenges
- 15:34Fractals and Julia sets
- 18:00Optimizing with threads
- 19:15SIMD for faster rendering
- 22:26Combining optimizations
- 23:07Takeaways and next steps
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