AI swaps gray boxes for ~4,000 buildings and 28,000 props inside Unreal Engine
chrisfirst · x · 2026-11-13
Continuing the Epic AI MegaJam livestream build, the author had AI pull Epic's City Sample pack and street props from Fab to replace gray-box placeholders with nearly 4,000 real buildings and about 28,000 props.
His MacBook sounded like a jet engine and kept warning about memory, but he says it was worth it. Screenshots show UE 5.9's Assistant panel detailing the city layout, drawbridges, and asset-pack swaps.
Related event: chrisfirst Live-Builds an Island City of ~4000 Buildings with AI in UE5.9(6 posts)→
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