public void init() {
if (main.nav == null) main.nav = new UNav3D();
UVertex v = new UVertex(1000, 0, 0);
f = new UFace().set(v.copy(), v.copy().rotY(120 * DEG_TO_RAD), v.copy().rotY(240 * DEG_TO_RAD));
f.reverse();
UVertex.rotX(f.getV(), PI / 6);
UVertex.rotZ(f.getV(), PI * 0.33f);
UMB.log(f.getV());
f.rotX(f.rnd(TWO_PI)).rotZ(f.rnd(TWO_PI));
fv = UIntersections.faceYPlane(f, 0);
lines = null;
UMB.log(UMB.str(fv, ' ', null));
plane = UGeoGenerator.meshPlane(2000, 2000, 20).rotX(HALF_PI);
}