You also need to run shaders on a good fps

and you will also need high gfx card to run the ray tracing perfectly

and heres the beta release of the 3.9 version
http://forum.toribash.com/showthread.php?t=180951

3.9 has some bugs
but its decent

with ray tracing looks fantastic

3.9 versions are still in testing, so naturally there is bugs. The ray tracing works in all 3.9 versions as far as I know.

of course xD