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.
GPT-6 AstraReference brief
Railway station concourse
Create a railway concourse with a strong architectural rhythm, believable scale and convincing materials. Produce an inspectable 3D scene with carefully framed station views.
About this example
A starting brief based on the creator's public project, not a verbatim original prompt. Your result will vary.
Adapted from the author’s public project description.
GPT-6 Astra
The prompt
Create a railway concourse with a strong architectural rhythm, believable scale and convincing materials. Produce an inspectable 3D scene with carefully framed station views.
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.
