def makeBulletConvexHullFromCollisionSolids(cnode):
from panda3d.core import CollisionPolygon
from panda3d.bullet import BulletConvexHullShape
shape = BulletConvexHullShape()
for solid in cnode.getSolids():
if isinstance(solid, CollisionPolygon):
for point in solid.getPoints():
shape.addPoint(point)
return shape
