Object Pick Selection Using Framebuffer and Picking Box - flexigame.com Technical Blog

Object Pick Selection Using Framebuffer and Picking Box

Pick selection (or mouse picking) is a way of selecting objects in 3D scene. It can be very useful for strategy games or any kind of 3D editors. There are different methods to achieve this. Most of them require ray casting (projecting 3D ray from mouse position, through the camera and into the scene) and converting mouse click position from viewport space to worldspace position. With ray origin position...