Abstract: A virtual or mixed reality system includes a Head Mounted Display (HMD) that receives content from a game engine. The game engine receives images from a host. The host operates at a fixed sampling rate while the HMD may operate at a variable refresh rate that differs from the rate for the host. The game engine provides updates to an item in the images having one or more features. The features have position or angle values that change with each update from the host. The game engine uses a multi-point extrapolation process and metaheuristics to provide updated or extrapolated position values for the item to the HMD.

Abstract: A target game for outdoor use wherein a ball is tossed or rolled toward a target with the target comprising a plurality of cups which are buried in the ground. Additionally, a backer board and rails are provided to accurately guide the ball in its path.