Opus 5.5 draws a galloping horse entirely in code: one HTML file, no images, IK-driven legs

victormustar · x · 2026-09-23

victormustar shows a galloping horse generated by Opus 5.5, drawn entirely procedurally in code: one self-contained HTML file using vanilla JS + Canvas 2D, no images or libraries. The 128×96-pixel scene features articulated legs driven by inverse kinematics across a 12-pose gallop — a striking demonstration of frontier models generating complex procedural animation from code alone.

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