Four interactive simulations of the glassblowing process. Gather a piece from the furnace, shape it with hand tools, colour the surface, then build the annealing schedule that keeps it in one piece.
These tools reproduce the relationships that matter in real glass work: volume grows with the cube of diameter, thicker glass anneals more slowly, and mismatched expansion cracks a piece. They are not engineering models and they do not replace a kiln schedule you have tested yourself. Real glassblowing requires hands-on instruction and the equipment manufacturer's safety instructions.
A three-stage simulation of the first two steps of glassblowing: dipping into the furnace, rotating the pipe, then blowing the gather into a bubble with live volume, diameter and wall-thickness estimates.
A deformable 3D form you reshape in real time. Pick a tool, drag across the surface, and watch the geometry change, with live height, diameter and capacity readouts.
Paint directly onto a rotating 3D glass blank. Five application tools map your strokes onto a live texture, with coverage and frit usage tracked as you go.
A draggable temperature curve with a playback animation, showing how a piece passes through the annealing point and the strain point and where internal stress is left behind.
Every simulator loads its rendering library only when you open it, so the rest of the site stays fast. Nothing is uploaded and no account is needed: the geometry, the textures and the curve maths all run in your browser.
Three.js and GSAP are bundled with the site rather than fetched from a CDN, so opening a tool makes no request to any other domain. A desktop or laptop with a discrete or modern integrated GPU gives the best result.