Nintendo Co., Ltd.

Nintendo Software Technology Corporation

Samir Abou Samra

Claude Comair

Sun Tjen Fam

Prasanna Ghali

Xin Li

Transformation matrices describing the motion of an articulated reference object specify translations of the reference object and/or its articulated parts, and are relative to the origin of the object's coordinate system. During the real-time animation process, a connection matrix is saved to represent the current transformation status of the animated object. This connection matrix being obtained by continuously concatenating an external transformation (if any) with the next animation step. This process allows efficient insertion of external transformations (e.g., resulting from operating real-time interactive user controls). Use of absolute transformations to develop the connection matrix allows a first animation sequence to be interrupted at any arbitrary point and immediately, smoothly followed by a second animation sequence (e.g., walking can be interrupted at any time and turned into running, jumping, etc.).

Method and apparatus for inserting external transformations into computer animations

Generic, abstract, encapsulated, expandable and maintainable techniques for modeling and animating computer graphics display objects can be used in a variety of different computer applications and platforms including, for example, video games developed for inexpensive home 3D video game platforms. An abstract simulation entity definition for use in real time computer simulation and animation encapsulates both the physical and behavioral characteristics of a display object. The simulation entity provides a unique &ldquo;genetic plan&rdquo; containing abstract attributes that may be shared among objects. Each simulation entity has the knowledge or know-how of common operations, and the ability to communicate with other simulation entities. Two separate class hierarchies may be used to differentiate between abstract components and physical components of simulation entities: an entity class hierarchy may be used to specify data structures and methods for behavior and communication; and an object class hierarchy may be used to define geometry and animation information and functions. A simulation entity can possess more than one set of object information. This allows the entity to change form (e.g., from a tiger to a bird) or perform multi-functionality during its lifetime. The simulation entity construct allows for more accurate modeling of the real world, supporting automation of simulation software production, and distributed and/or remote processing.

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Samir Abou Samra