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Hacker News front page14 min readintermediate

The Effect of CRTs on Pixel Art

Read on datagubbe.seHN 301·119 comments

Summary

A nostalgic‑but‑technical look at how CRT displays interact with pixel art, covering scanlines, color bleed, signal quality, and how 8‑ and 16‑bit developers used dithering and anti‑aliasing to compensate for low resolution and limited palettes.

  • CRT fuzziness isn’t a magic fix; real CRTs still show visible pixels and scanlines.
  • Artists on C64/NES used limited palettes but could achieve smoother looks with dithering and anti‑aliasing, especially on later 16‑bit machines like the Amiga.
  • Signal path matters: RF → composite → S‑Video → RGB SCART each adds or reduces blur and color bleeding.
  • Modern CRT emulation filters often over‑blur; the author prefers real CRTs for authentic viewing.

Pixel‑art creators and retro‑game developers still rely on CRT‑style displays for authenticity. Knowing which visual artifacts come from the display versus the art itself helps avoid misguided “CRT‑only” design decisions and informs better emulation or up‑scaling pipelines.

5/10
retro gamingcrtpixel artditheringanti aliasing

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