AI Built My House. The Toilet Was Backwards.
I put a walkable model of my home in a 3D village. The reconstruction was almost identical to the real house. Then I found the toilet facing the wall.
AI helped me build a 3D village inside this website. You can run around as my cartoon mascot, jump, visit buildings, and walk into a model of my home.
Then I went into the bathroom. The toilet was facing the wrong way.
A website with a scenic route. The white house on the right is where this story gets specific.
From a mascot to a house you can enter
This started with turning my wife’s drawings into a 3D mascot. That first session used GPT-6 Astra. Once he could walk, a character viewer felt too small.
I asked for a scene instead: control the little guy, match his style, and enter the site’s main features from inside the village. Looking back through the local session with vibe-replay, that became Windward Village — mountains, a lake, paths, and buildings for projects, notes, and About. About became a house. Mine.
Almost the real home
I already had the mascot model, plus the house construction drawings and a map. The agents built a Blender model and dropped it in the village: roof, garage, windows, porch, deck, and a door you could walk through. The drawings and address stayed off the site; the generated model went in.
A recognizable exterior was one step. Matching the interior to the drawings was another. A reconstruction pass corrected walls, room connections, roof geometry, and floor levels. It even removed an invented door between the living room and a bedroom.
Inside the playable house.
Later we made the rooms easier to walk and added furniture from photos. It is a stylized web version of home, with compromises for the camera and the character. Still, from the village path to the interior, it got close enough that I started inspecting it like the real place.
Which is how I found the plumbing.
A toilet no person would install
On September 15, my feedback had shrunk from “make a whole 3D world” to sofa size, the 85-inch TV, the kitchen island, and this:
马桶和水池有一些没有按照我设计图来，马桶甚至倒过来了，你检查一下，然后发个pr
Some of the toilets and sinks don’t match my drawings. A toilet is even facing backwards. Check them and open a PR.
Original prompt, followed by an English translation.
The same workflow that could rebuild a house from drawings still needed me to say: look at the toilet. Which way would someone sit?
Look to the right of the sink: the tank faces the room, and the bowl faces the wall. This is a browser screenshot from the version before the fix, captured by walking into bathroom 1. No furniture was moved or rotated for the picture.
A later pass put the four toilets beside their vanities on the intended walls, and moved the primary bathroom’s toilet out of the shower, where the renderer had hidden it.
That is the gap I keep coming back to. Models like GPT-6 Astra got much better at 3D: a walkable house that is almost identical to the real one, from the village path to the interior. Spatial common sense still slips. A person who had never been here would still not point a toilet at the wall.
Visit the village — choose About in the map to go straight home, or take the long way and walk through the front door.
Written by revisiting local Codex and Cursor sessions with vibe-replay. The images are real browser captures of the project; the bathroom image is from the historical build before the fixture fix. Private source drawings and raw sessions are not included.