Opus 5.5 codes a transparent Three.js stream: water, light caustics and mossy rocks, all in code

claudeai · x · 2026-09-26

In a demo reposted by Anthropic, a Japanese developer used Opus 5.5 with Three.js to render a crystal-clear mountain stream — transparent water, riverbed light, mossy rocks, all generated in code. The author says expressions once considered too difficult are now achievable in one shot with the model.

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