Abstract: A computer generates one or more geometric rays at a predetermined height above one or more portions of an avatar's body in a virtual environment. Once the rays are generated, the computer computes intersections of the one or more rays with a collision mesh that defines a terrain of the virtual environment at the location of the avatar. Then, the computer computes the point of intersection of each of the one or more rays with the collision mesh. Using the points of intersection, the computer calculates an offset in an elevation and/or an offset in an orientation of the avatar with respect to the terrain in the virtual environment. Further, the computer adjusts the elevation and/or the orientation of the avatar based on the calculated offset in the elevation and/or the elevation in the orientation, respectively, such that the adjusted elevation and/or orientation compensates for the calculated offsets.

Abstract: A computer determines a modified location for an avatar of a first entity in a virtual environment based on a location of the first entity in a capture volume and a transformation used to map a second entity from the capture volume to the virtual environment. The modified location of the avatar of the first entity relative to a location of an avatar of the second entity is consistent with the location of the first entity relative to the location of the second entity in the capture volume. Once the modified location is determined, the computer displays a graphical cue corresponding to the first entity at the modified location of the avatar of the first entity provided that a distance between the modified location of the avatar of the first entity is different from a current location of the avatar of the first entity in the virtual environment.

Abstract: A motion capture simulation system can include a capture volume. A participant disposed in the capture volume can be motion captured and immersed into a virtual environment. The virtual environment may be larger in size than the capture volume. In the virtual environment, the participant may be represented by an avatar. The avatar in the virtual environment can be moved in a first direction based on a motion of the participant in the first direction in the capture volume. As the participant moves in the first direction in the capture volume, the participant may approach a boundary of the capture volume, while the participant's avatar may have space to move further in the first direction in the larger virtual environment. Approaching the boundary, the participant can change direction, for example turning around to avoid the boundary. The redirected participant can continue driving the avatar to move in the first direction.

Abstract: The present invention is a football counting device that utilizes a microcomputer so that a proper count can be given for backyard or sandlot football games as to when the defense can rush the passer. A push-button switch will start the sequence and the microcomputer (1) controls an audio sound that counts “1 Mississippi”, “2 Mississippi” and (2) gives a visual display as to when the quarterback can be rushed. The length of time delay and the voice utilized can be selected by the players. The sequence repeats for each new down.

Abstract: A system and method for measuring, animating, and analyzing motion in real-time is provided which operates with or without markers. System variables are used with a motion model to restrict the number of possible locations of a subject. The system variables are based on known or detected relationships between the motions of the various elements of the model. Visual comparisons and quantitative comparisons provide feedback and help a subject learn or improve a motor skill.

Abstract: A system and method for measuring, animating, and analyzing motion in real-time is provided which operates with or without markers. System variables are used with a motion model to restrict the number of possible locations of a subject. The system variables are based on known or detected relationships between the motions of the various elements of the model. Visual comparisons and quantitative comparisons provide feedback and help a subject learn or improve a motor skill.