int draw_callback(pfTraverser *trav,void *travData); node->setTravFuncs(PFTRAV_DRAW,draw_callback,NULL); node->setTravData(PFTRAV_DRAW,node_data);causes draw_callback() to be called in the draw stage when node is visited. Note - node will not be visited in the draw stage if it has been culled.
Navigation example using traversal callback
Last modified 5 February 1996.
Dave Pape, pape@evl.uic.edu