basic picking
node colors
crappy first steps towards grabbing
crappy first steps towards interactivity
interactive recomputation of delaunay diagram
draw convex hull
added RaycastTriangle
toggle convex hull
fixed Polyhedron_RaycastFaces
improved grabbing of nodes
fixed test for edge validity,
enabled panning
added reset of camera
refactored events
using new event system, removed old one
fixed the Apocalypse, minor cleanups
towards voronoi2d
drawing voronoi2d
drawing voronoi diagram
bounded voronoi: red-blue seg. intersection
fixed autorepeating keys