Desmos to 3D Model

Export graphs created in Desmos 3D Graphing Calculator to 3D models in formats like GLTF, OBJ, and STL that can be used for animation (eg. in Blender) and 3D printing.

How to use

• Open a 3D Desmos graph
• Zoom / Resize window for desired shape and point/line size/thickness
• Paste main-3d.js into F12 JS console
• Follow the prompt to download model
• You can change the 3D model format by changing download(GLB|OBJ|STL)() at the end of the script

To-do

• Support domain restriction [expression] {x > #}
• Test on more graphs
• Fix script when Desmos update breaks it

How it works

Thanks user ronwnor on Unofficial Desmos Discord server for pointing out Calc.controller.grapher3d.webglLayer.surfaces in Desmos 3D graphing calculator. Prior to this, the script main-3d-webgl.js creates a wrapper for WebGL that logs 3D model information like geometry and color.