this post was submitted on 14 May 2025
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[–] everyonesconnected@lemmy.dbzer0.com 10 points 8 hours ago (2 children)

So from what I can read, the Morrowind Script Extender uses LuaJIT instead of regular lua, which does tracing just-in-time compilation. Meaning, and I'm just paraphrasing wikipeda here, it compiles frequently executed sequeneces of operations into machine code.

[–] justastranger@sh.itjust.works 3 points 6 hours ago

This appears to use OpenMW, not MWSE

[–] sp3ctr4l@lemmy.dbzer0.com 2 points 6 hours ago* (last edited 6 hours ago)

Now, that is a very relevant detail!

I did not know LuaJIT was even a thing.

Still probably not as performant as ... C++ or Rust or something, that is totally precompiled... but that would explain how this is even possible, a 3D Lua based physics engine.

Yeah, looks like LuaJIT passes a bunch of the Lua code into C, just good ole C, and then dynamically compiles it, then runs the 'translated' C code.

That makes a lot more sense lol.