VFX artist builds Unity particle effects with Claude Code on Opus 5.5

What the research found

A VFX artist built three Unity Shuriken particle effects (fire, lightning, ice) with Claude Code on Opus 5.5 over two weeks, using a self-written VFX skill, a frame-tiling review loop, and a free MIT-licensed shader on GitHub.

Claims and how well the evidence supports them

1. Effects were built with Claude Code using Opus 5.5 over two weeks 98%
2. Each effect took 10 to 15 iteration rounds 99%
3. Textures are generated via a Codex worker using codex exec with image gen 99%
4. VFX Essential shader is released free under MIT license on GitHub 99%

Evidence

• reddit.com https://reddit.com/r/ClaudeAI/comments/1xbsxxm/exploring_opus_55s_potential_in_realtime_vfx
• github.com https://github.com/excifroge/VFX-Essential-Shader

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