I What website/software can draw optics setups like this?

[SmartHu]

TL;DR Summary

optics setup drawing

Some time ago, I drew a simple drawing. But now I can't remember how I drew it. Did I use a software or a website?
I remember I could choose some optics components, like the small laser in the image, the mirror mount, etc.
It can do basic light tracing.
It was free.

 

[sbrothy]

I'm pretty sure WebGL (Javascript) is up to the task. Specifically you might look into the THREE.js module. On the other hand it sounds like you're searching for a particular piece of software. Anyway, good luck.

EDIT: BTW, ATT: moderators. This thread should probably be moved to the computer science/programming forum if the tool in question isn't directly optics-related that is.