https://gemelyn.com/blog.html How Gemelyn Studio's products are actually built: the decisions, the trade-offs we accepted, and where the approach stops working. en https://gemelyn.com/blog/how-much-space-around-furniture.html https://gemelyn.com/blog/how-much-space-around-furniture.html Tue, 29 Sep 2026 09:00:00 GMT The gaps that make a room work, in cm and inches: sofa to coffee table, walkways, dining chairs, beds, wardrobes and door swings — and how to check yours. Room planning Furniture layout Clearances Duimstok https://gemelyn.com/blog/turn-a-floor-plan-into-a-3d-walkthrough.html https://gemelyn.com/blog/turn-a-floor-plan-into-a-3d-walkthrough.html Tue, 29 Sep 2026 09:00:00 GMT Hand your floor plan to an AI or draw it yourself, then walk through your home in 3D at true scale. Free, in the browser, no account — step by step. Floor plans Room planning 3D walkthrough Duimstok https://gemelyn.com/blog/driving-a-3d-house-from-the-console.html https://gemelyn.com/blog/driving-a-3d-house-from-the-console.html Tue, 08 Sep 2026 09:00:00 GMT Duimstok now ships window.duimstok in every build. No install, no account, no pointer lock — and nothing throws, because the caller is usually an agent. Agent API LLM agents API design Duimstok https://gemelyn.com/blog/measure-snaps-to-vertices-not-colliders.html https://gemelyn.com/blog/measure-snaps-to-vertices-not-colliders.html Tue, 08 Sep 2026 09:00:00 GMT The collider list looked like a free source of room corners. It is a set of wall centre lines, and measuring to it reports a dimension nobody wants. Architecture decisions Geometry Raycasting Duimstok https://gemelyn.com/blog/why-your-webgl-screenshot-is-blank.html https://gemelyn.com/blog/why-your-webgl-screenshot-is-blank.html Sat, 05 Sep 2026 09:00:00 GMT canvas.toDataURL on a WebGL canvas returns a blank image. The usual fix is preserveDrawingBuffer. There is a cheaper one: read the frame back in the same task. WebGL three.js Browser APIs Duimstok https://gemelyn.com/blog/daylight-through-the-windows-threejs.html https://gemelyn.com/blog/daylight-through-the-windows-threejs.html Sat, 05 Sep 2026 09:00:00 GMT Deriving a three.js sun from window normals, masking each beam with the wall, and the back-face shadow trick that finally fixed the ceilings. three.js Lighting WebGL Duimstok https://gemelyn.com/blog/every-chair-is-a-typescript-file.html https://gemelyn.com/blog/every-chair-is-a-typescript-file.html Thu, 03 Sep 2026 09:00:00 GMT A furnished 3D home in the browser with no model files and no image textures. How the furniture is built, and where the rule stops working. TypeScript Procedural geometry three.js Duimstok