TopviewAI open-sources 3D Builder, a local CLI that stages editable 3D scenes for planning AI video shots

TopviewAI wrote up its open-source 3D Builder on Oct 15 (repo public since Sept 24). It's a local CLI: your coding agent builds an editable 3D scene from a prompt, placing characters, props and cameras, with set camera paths so you can plan each AI video shot before generating it. Video generation itself runs on Topview.ai, not locally. Code Apache-2.0, assets CC BY 4.0.
How you’d use it: Block out characters and camera moves in 3D before you generate an AI video shot.