Real-Time Line Drawing Using Image Processing and Deforming Process Together in 3DCG

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  • Okuya Takeshi
    Department of Intermedia Art and Science, Graduate School of Fundamental Science and Engineering , Waseda University
  • Tanaka Katsuaki
    Department of Intermedia Art and Science, Fundamental Science and Engineering , Waseda University
  • Sakai Shigekazu
    Department of Intermedia Art and Science, Fundamental Science and Engineering , Waseda University

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Other Title
  • 3DCGにおける画像処理と形状処理の併用によるリアルタイム輪郭線描画

Abstract

In cartoon rendering of 3DCG, methods for generating a contour lines are classified into the method using the image processing or the method using the three-dimensional shape of the models. By selecting G-Buffers, the method using the image processing can accurately detect intended lines of users, but the lines are mechanical impression by the uniform thickness. The methods using the three-dimensional shape of the models can adjust thickness of the lines, but detection of the lines is dependent on the rendering algorithm and it can't detect the intended lines of users. In this paper, we separated contour lines process into detection and rendering. Our approach uses image processing for detection and model shapes for rendering. It can detecting intended line of users and draw exaggerated lines by changing the thickness of lines. In addition, we implemented a graphics API pipeline to run our method in real-time, and also examined a technique to accelerate processing speed.

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