Kei Utsugi
ABSTRACT
A more flexible and impressive depiction results with traditional hand-drawn animation than with computer graphics. We propose a technique for anime-like exaggeration of perspective. Our technique is used to achieve a dynamic depiction when rendering animation using multi-perspective rendering. Multi-perspective rendering is a non-photorealistic rendering method that combines what is seen from several viewpoints into a single image and enables the rendering of anomalous pictures. We focused on a systematic arrangement of viewpoints specialized to depict an exaggerated rendering of a figure model with articulated joints so that these viewpoints represent exaggerations similar to traditional freehand drawing in anime. For this purpose, we constructed a tree structure we call "viewpoint hierarchy" (VH), which is isomorphic to joint hierarchy, with nodes containing the viewpoints necessary for multiple perspectives. Our technique dynamically arranges each viewpoint between the viewpoint's parent node and a control point embedded in a figure model. Our real-time implementation and experimentation show that perspective-combined images are preferable for dynamic movement and immersion.
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Index Terms
- E-IMPACT: exaggerated illustrations using multi-perspective animation control tree structure
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