threeDart/three.dart — pull request #18 by tiagocardoso (2012-10-26 10:59:05+00:00)
Title: New geometry extrude example with custom frenet frames and U-steps;

Curve new method getUPoints;
On CurvePath changed 'getPoint' method signature to return var instead of Vector2 (sometimes you don't get Vector2);
Changed Extrude constructors signatures to recieve 'frames';
Extrude Geometry can now take a list of u-steps instead just the number of steps;
TubeGeometry now also can recieve a list o U's for steps instead of just the number o steps;
Bugfixe on Ray intersection.