![]() ![]() His description of PA was any motion that was automatically generated using mathematical expressions, scripts & pre-entered data, etc. Next up, Tanaka focussed on procedural animation (PA). If there isn’t enough space, choose “raking out with forefoot”. For example, when there is a barrel, choose “eat”. To decide upon an action-decision, the space around Trico is the key factor. When Trico takes action with the object, the priority or “level of interest” of the object changes, and the interest shifts to other things. Trico is interested in things with a high level first. In order to determine a point-of-interest object, an object priority level is set for each object. ![]() On deciding upon a point-of-interest → move to interest → action-decision. The purpose of AI is to convince players that Trico had a mind – so it was important for Trico to grasp the current situation THEN make decisions. According to Tanaka, the structure was very simple. To illustrate the AI he played a movie showing Trico reacting to the boy ‘s call then finding, approaching and finally eating barrels. The technique adopted to overcome these problems was procedural animation – every animation frame processes calculations from AI (Artificial Intelligence) → animation → procedural animation → physics → fur → rendering. The challenging characteristics of Trico were four-fold: Tanaka was responsible for the animation of Shadow of the Colossus, and The Last Guardian as animation director and lead game designer. Gen Design is the studio comprising Fumito Ueda and staff involved in the development of Ico and Shadow and the Colossus. Tanaka began working at Sony Interactive Entertainment Japan Studio in 2002 and later joined Gen Design as a launch member of in 2013. The presentation was in Japanese so I’ve provided a rough translation of elements pertinent to game animators by deciphering google-translate write-ups in the Japanese press with the aid of the slide visuals. Below is a write-up of GenDesign animation director Masanobu Tanaka’s CEDEC (Computer Entertainment Developer’s Conference) 2017 presentation on the procedural technology of Trico in The Last Guardian. ![]()
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