I’m running it on my laptop. 2ghz core i7 + Intel HD 4000. Also linux with really shoddy graphics drivers. =P
and is there much room for optimization within the code?
Yes, probably. I’m not a very experienced graphics programmer. Currently the whole thing is just being rendered in direct mode, so no use of fancy stuff like VBOs or tesselation. I don’t think it’ll be needed though unless we extend the view range a fair bit.
Maybe there is some code you could borrow from Noteye? (as suggested in the tilset thread) http://www.roguetemple.com/z/noteye.php
Maybe. Learning enough about a project’s source code to rip out the parts you’d like to have is usually more work than it’s worth though.
Finally, would having an artist help? I'm happy to help out with a custom tileset if you could use it.
We will soon have tileset support, and I plan to integrate that into the visualizer once it’s done. 3d models might be awesome to have, but I think tilesets come first.