PinTool is a simple but powerful Nuke node. It helps you to fit a 3D object into a scene. It can be used for precise positioning of still objects or even for simple object tracking. With PinTool, to manipulate a 3D model’s position, you simply drag control points on its surface (pins) to their correct position in the frame. Also PinTool is able to estimate camera focal length as you positioning an object.