You could try to drag-and-drop three.module.js here: https://boytchev.github.io/demoduler/, then download the de-moduled version. However, before doing this, consider:
- Using non-moduled Three.js is a step backwards, you will run in problems that escalate exponentially as your project gets bigger
- The demoduler is supposed to work on addon modules, so I’m not sure whether the produced demoduled Three.js will be functioning at all
- The demoduler is not supported any more, I used it for an year, as a grace period
- The demoduler is stupid, it will definitely not work with minified files, so do not try to demodule
three.module.min.js