Kaom, In your scene, I would follow Mark's suggestion. Use some planes to create your corner. One plane for floor, one for left wall, one for back wall. You wouldn't have to use Presmooth, and Adaptive Mesh probably wouldn't help much. Here's a sample: If you want to show that outer corner, you'll probably have to do some manual work. Not sure how Mark did it, but you could export two planes grouped together as obj and then import and tweak in the vertex modeler. Good Luck, Eric Winemiller Digital Carvers Guild Freeware and commercial 3D extensions http://digitalcarversguild.com

Eric Winemiller
Digital Carvers Guild
Carrara and LightWave plug-ins