Experiments, comparisons, and hands-on learning in the wild.
THREE.JS × DWG / DXF / PDF / IMAGE · INTERACTIVE SPACE LAB
Upload a .dwg / .dxf file or a floor plan image to build a 3D space. Then add furniture at real sizes and test the flow.
Start arranging the space ↗
RASTER TO CAD · PNG / JPG → DXF & 3D
Convert raster floor plan images into layered AutoCAD .dxf vector files with 2-point millimeter calibration, or launch directly in the 3D simulator.
Open PNG-to-CAD Studio ↗PING CALCULATOR · CM / M² / 台尺 → 坪
1 ping ≈ 3.3058 m². Enter room sizes to get ping, add up several rooms, or import the outline from the 3D layout tool.
Calculate ping ↗GODOT × BFS · INTERACTIVE SOLVER LAB
Push the box, play BFS layer by layer, take one optimal hint, and see how CI guards a 100-level data contract.
Open the solver lab ↗BLENDER × THREE.JS · IMMERSIVE ESSAY
Scroll through five 3D scenes and follow my shift from handing everything to AI to keeping the final decision.
Start the interactive essay ↗OPENSTREETMAP × THREE.JS · SEEDED ARCADE RACE
Roads, buildings, and elevation come from open data. Each seed builds a closed circuit from the street graph for a three-lap race against three AI rivals.
Start the street race ↗OPENSTREETMAP × BLENDER × THREE.JS · REAL CITY
The track was not drawn. The route comes from an OpenStreetMap snapshot, the city is generated in Blender, and what ships is a 1.3 MB GLB.
Start the night run ↗FREE STARTER · VITE · TYPESCRIPT · MIT
Try the complete interactive demo, then take the source through GitHub Template or ZIP—with mobile, reduced-motion, and WebGL fallbacks included.
Open the starter →Behind the scenes
Midnight Run does not use a track I drew. It runs on a real block of Taipei's Xinyi District. The route comes from an OpenStreetMap snapshot, the city is generated in Blender, and what reaches the browser is a 1.3 MB GLB.
When I first used AI to build apps, my most common instruction was: "Finish this feature for me." Sometimes it worked so quickly that I thought I had found a new way to build software.
Notes should be captured when an idea appears. The decisive issue is not how smart the AI is, but whether thinking and recording are forced into separate places.
A January 2026 record of tool roles and manual handoffs, including the unfinished integration. This is not a current quota guide or a measured savings claim.
A single conversation asked three models to compare anonymous answers. This revised account separates the original observations from missing transcripts, controls, and scoring criteria.
Inspect Last Pitch Derby’s actual export settings and files, distinguish compressed transfer size from memory cost, and diagnose startup and audio failures with a repeatable checklist.
Search IKEA Taiwan for "3-seat sofa" and three products come back at 171, 218 and 228 cm wide. Same label, 57 cm difference.
We drew two sample layouts for a 20-ping deed area: one with 2 bedrooms, one with 3. Both are about 48 m² indoors.