Not to dig up a dead horse, but I came across this thread in a search for this topic. Here are a few Maxscripts to use for tri-to-quad conversion: http://www.scriptspot.com/3ds-max/scripts/quadrangulate http://www.scriptspot.com/3ds-max/scripts/quadrifyall
[ QUOTE ] Turn to mesh modifier set the minimum polys to 4. Failing that, use a mesh bomb with min and max set to 4, blow the model apart with 0 strength and then sweep select the lot, backspace out the interior edges and weld it back. Crazy I know, but it works. [/ QUOTE ] There's a script that does exactly that. Search…