Hello guys, I'm doing an app to control objects via a Kinect sensor. I finally managed to control two hands (they are just images) on the screen, and the next step is to be able to put a Hand in front of a sphere and allow this sphere to follow the position of the hand. My hand is just an Image on the screen I move it by changing his left and top css properties, and my problem is how to know when my hand "touched" the sphere. I've tried with BABYLON.Ray(hand.x,hand.y) but it's like the ray is pointing somewhere I don't know, and the "touch" occurs somewhere far from the sphere. Any ideas ? Thank you in advance.