(add-file-archive! (get-file-system device) "media/map-20kdm2.pk3")
(define mesh (get-mesh scene-manager "20kdm2.bsp"))
-(define node (add-octree-scene-node
+(define node (add-octree-scene-node!
scene-manager mesh
#:minimal-polys-per-node 1024))
(set-position! node '(-1300 -144 -1249))