Yeah, Martini seems promising. Yet to implement at map scale which is why I was interested if you'd tried already! The RTIN processing itself is very straightf

Yeah, Martini seems promising. Yet to implement at map scale which is why I was interested if you'd tried already! The RTIN processing itself is very straightforward / lo-rent ... that said, if you were optimising the DEM tiles on the fly you'd probably refactor / integrate the two processes to save some loops. Dropped into a service worker (or WASM) I'm guessing it would be reasonably performant. Though perhaps meshoptimizer is more flexible with mesh dimensions?? (rtin is limited to a 2^nish grid) With that in mind had you considered zooming out for your dem only, so as to lower the heightmap resolution (but leave the env map as is)? Maybe you're already doing that?