http://en.wikipedia.org/wiki/Metropolis_light_transport
at first when you guys mentioned about MLT I tought it was the .MTL file that comes with creating an OBJ file...

if so how much faster is it comparing MLT to pathtracing ? and why does pathtracing creates hot white spots ? I think in Vray it can be filtered using postwork option in the render to clamp the fireflies.
will Octane have option to go biased aswell ?
thanks again for your hardwork!! what a talent too
regards
-e