Don't know about this specific usecase, but Unity exports are heavy. I mean, it compiles C# scripts to C++ and then compiles it and Unity C++ runtime to Javascr

Don't know about this specific usecase, but Unity exports are heavy. I mean, it compiles C# scripts to C++ and then compiles it and Unity C++ runtime to Javascript. I easily got download sizes in tens of megabytes when trying to use Unity export for simple demos. Meanwhile Three.js is very lightweight and more than enough for such projects.