How to Use AI Tools to Build 3D Worlds

Persistent 3D worlds

Files you download and edit, such as Gaussian splats or meshes

Real-time world models

Worlds generated live as you move, which you explore but usually cannot export

Decide first: do you need a world to keep, or a world to explore?

• Turns text, images, or video into 3D environments you can keep and edit
• Marble 1.1 and 1.1 Plus launched in April 2026
• Exports Gaussian splats, meshes, and video
• A World API lets developers generate worlds inside their own apps

Genie generates interactive worlds in real time that respond as you move. Project Genie gives Google AI Ultra subscribers in the US an experimental way to try it, and Genie 4 was announced as a research preview in October 2026.

Viggle’s PINOC is a 3D creative engine that generates worlds, characters, and motion from text, a photo, or a clip. It is billed separately from Viggle’s main plans.

• Turn text or images into 3D models of props, characters, and buildings
• Export common formats such as GLB, FBX, or OBJ
• Clean up topology and textures before using them in games

• Import meshes into Blender, Unity, Unreal, or Godot
• Use Gaussian splat plugins where supported
• Add collisions and lighting in the engine
• Combine AI scenes with hand-made key assets

A quiet Japanese mountain village at dusk: wooden houses along a stone path, paper lanterns glowing, light snow, a small shrine at the top of the hill, mist in the valley below. Human scale, walkable paths.

• Describe place, time of day, weather, and mood
• Say the scale and where people can walk
• Name key landmarks to anchor the layout

Games

Prototype levels and environments fast

Film and video

Virtual sets and previsualisation

Architecture

Early concept walk-throughs

Education

Explorable historical and science scenes

Robotics and AI

Simulated environments for training

• Keep scenes small for web and VR
• Reduce polygon counts and texture sizes
• Test on the weakest device you plan to support

• Check each tool’s terms for commercial use
• Do not recreate copyrighted game worlds or real private places without permission
• Credit AI tools where required