Creature animation and simulation technique

G - Physics – 06 – T

Patent

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Details

G06T 13/00 (2006.01) G06F 15/00 (2006.01) G06T 15/70 (2006.01)

Patent

CA 2234578

A synthetic creature (10) in which links (26), representing limbs, are loosely connected by joints (28) to independently interact and implement the physics of everyday life-like actions (18) in a character (16). Elements of mass, positive weight (46), and negative weight (48) are independently handled to mimic the closed-loop control characteristics of real animals. The synthetic creature (10) uses intelligent appearing behaviors (20) built up out of the actions (18) and recursively arranged in a hierarchical behavior tree (72) to cooperate and compete in a run-time computer (202) to give a feeling of autonomy and awareness. Further taught is an authoring environment (200) of tools used to author the character (16), actions (18), and behaviors (20) of the synthetic creature (10), which provide author feedback and simulation testing capability at the various layers (12) of the synthetic creature (10).

L'invention a trait à un personnage de synthèse (10) comportant des liaisons (26) représentant les membres reliés de façon lâche par des articulations (28) en vue d'interactions indépendantes et de figurer les gestes quotidiens (18) du personnage (16). Des éléments de masse, de poids positif (46) et de poids négatif (48), sont traités de manière indépendante pour mimer les traits caractéristiques de commande en boucle fermée d'animaux réels. Le personnage de synthèse (10) présente un comportement apparemment intelligent (20) constitué à l'aide des gestes (18) et configuré de manière récurrente dans un arbre de comportement hiérarchisé (72) pour coopérer et concourir dans un ordinateur d'exécution (202) pour donner une impression d'autonomie et de conscience. L'invention porte en outre sur un environnement (200) d'outils descriptifs figurant le caractère (16), les gestes (18) et le comportement (20) du personnage de synthèse (10) permettant une rétrointervention de l'auteur, et des tests de simulation des différents niveaux (12) du personnage (10) de synthèse.

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