Examples

Samples that run in this page. Each one loads only when you press the button; the sources are in examples/ of the repository, and each has a README with the rebuild steps. The same samples are also shown on the overview.

Interiors#

An apartment from Unreal Engine#

An Unreal archviz apartment, running in your browser on baked light: walk through one continuous room, floor plan.

Unreal Engine 5 baked light first person phone

60 FPS on a laptop RTX 3050. Download by quality tier: low 19 MB, mobile 13 MB (this page), desktop 20 MB.

How it was made

1. The project. The ArchViz apartment of Unreal Engine 5, as it is: its meshes, materials, lights and the baked lighting of the original.
2. Export. Ferret's Unreal exporter writes the level to glTF; the post-process step builds three quality tiers (low, mobile, desktop) with compressed textures and meshes cut to a triangle budget, plus a collision model for walking and a grid of light probes that carries the baked light onto things that move.
3. Package. The result is an ordinary Ferret level package: a folder with a manifest, scene.glb, collision.glb and the probes. The level packages are large binaries and live outside Git (see the README of the example).
4. Embed. The example is a small TypeScript game (examples/apartment): first-person movement, a loading screen with progress, a floor plan drawn from the level's own walls. This page runs it with the mobile tier.

Source: examples/apartment

Wabi Sabi guesthouse#

A boutique guesthouse interior made in Unreal Engine 5.8, walked in the browser: lounge, bar and dining table on baked light.

Unreal Engine 5 baked light first person phone

60 FPS on a laptop RTX 3050. Download by quality tier: low 9 MB, mobile 11 MB (this page), desktop 16 MB.

How it was made

1. The project. The Wabi Sabi Boutique Guesthouse interior of Unreal Engine 5.8 (Mint Studio), as it is: its meshes, materials and lights.
2. Export. Ferret's Unreal exporter writes the level to glTF; the post-process step builds three quality tiers (low, mobile, desktop) with compressed textures and meshes cut to a triangle budget, plus a collision model for walking. The original uses Lumen and has no baked light, so the light is baked here into a grid of probes.
3. Package. An ordinary Ferret level package (a manifest, scene.glb, collision.glb, the light probes); the packages are large binaries and live outside Git (see the README of the example).
4. Embed. A small TypeScript game (examples/wabi-sabi): first-person movement, a loading screen with progress, a floor plan. The page picks the quality tier from the browser; this page carries the mobile tier.

Source: examples/wabi-sabi

Home interior#

An open-plan home (living room, dining area, kitchen) from Unreal Engine, walked in the browser on baked light.

Unreal Engine 4 baked light first person phone

60 FPS on a laptop RTX 3050. Download by quality tier: low 8 MB, mobile 9 MB (this page), desktop 26 MB.

How it was made

1. The project. The Home Interior scene of Unreal Engine 4.27 (Olga Chekunova), as it is: its meshes, materials and lights.
2. Export. Ferret's Unreal exporter writes the level to glTF; the post-process step builds three quality tiers (low, mobile, desktop) with compressed textures and meshes cut to a triangle budget, plus a collision model for walking. The 4K textures are compressed to KTX2 and capped per tier.
3. Package. An ordinary Ferret level package (a manifest, scene.glb, collision.glb, the light probes); the packages are large binaries and live outside Git (see the README of the example).
4. Embed. A small TypeScript game (examples/home-interior): first-person movement, a loading screen with progress, a floor plan. The page picks the quality tier from the browser; this page carries the mobile tier.

Source: examples/home-interior

Games and machines#

The Hindenburg#

An airship of 245 m flying over a procedural zone of 100 by 100 km: mountains, forest, fields, lakes, herds of animals and a fortress, with a day and night cycle of two minutes. The physics is Ferret's: buoyancy, ballast, the helm, wind and the crash on impact.

physics procedural world day and night airship

Source: examples/zeppelin. Read more: examples/zeppelin/README.md, plans/PLAN-ZEPPELIN.md

A duel with a Dragon#

A Viking against a Crusader Knight on a 1200 by 1200 m field, while a Dragon breathes fire over them; everything is built from the asset library.

asset library combat AI flight

Source: examples/fight. Read more: The combat guide

The school courtyard#

A castle courtyard made in Unreal Engine 5 and brought over by the export pipeline, walled in by collision built from the same scene; the exit door is the one piece of game logic.

Unreal Engine 5 first person cut-scene

Source: examples/school-outside. Read more: The overview, examples/school-outside/README.md

A five-speed gearbox#

141 solid parts generated from one file of numbers, driven by Ferret's physics: shafts, gears, sleeves, forks, the crown, the planets and the oil move from the state of the machine.

physics generated model cutaway

Source: examples/gearbox. Read more: The gearbox guide