Start with the right workspace
Open your preferred coding assistant or 3D tool. Use the model shown on the example as a starting point, and check any linked project for setup instructions.
Claude Opus 5Reference brief
Claude Opus 5 prompt for a non-Euclidean door portal in Unreal Engine 5
A reusable procedural 3D modeling and portal-logic prompt for building a walk-through door that opens into a classroom without cuts, fades, or loading screens.
About this example
A starting brief based on the creator's public project, not a verbatim original prompt. Your result will vary.
Claude Opus 5Unreal Engine 5non-Euclidean doorportal logicprocedural 3D modelingimpossible spaces3D scene
The prompt
"A door standing alone in a void, with nothing around it and nothing behind it, opening into a classroom located somewhere else in the level. Walk straight through - no cuts, fades, loading screens, or anything that feels like teleportation. It has to work from both sides and from every angle."
How to use this prompt
Choose one thing to change
Swap the subject, art style or setting. Keep the camera and interaction clear. Build a small version first, then refine one detail at a time.
Give the scene its own assets
For a custom character or prop, create a 3D model from a short object description or reference image, then bring it into your project.
Previews belong to their respective creators. Check the original source and project license before reusing code or assets.
