Opus 5.5 one-shots a 90s-style C++/OpenGL demoscene demo from a single prompt

TrillStancil · x · 2026-09-24

A user showed Claude Opus 5.5 one-shotting a 90s-style demoscene demo in C/C++ with OpenGL, scored with Purple Motion's music from Second Reality — a genuine single-prompt generation. The output is 880KB plus a 620KB S3M audio file, 'almost fits on a floppy.' The thread contrasts demoscene's traditional 4KB/64KB size-limit culture, noting that with AI, size optimization is no longer a skill gate.

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