立體山石之中國山水畫皴法模擬合成

Abstract

中國國畫具有悠久的歷史，而山水畫於東晉時期萌芽，經一千六百多年眾名家不斷傳承創新下，累積了無數的技術經驗。由於它的技法複雜、山川變化大、題材多，光是運筆用墨上，便需很多時間磨練。所用紙張易於吸墨，畫錯一筆，整幅作品便前功盡棄，因此更需純熟精練的技術，於一氣呵成下運筆墨於紙上表現出濃淡乾濕的效果。故強調線條美與墨采變化的山水畫可說是國畫最難的一科。 在本篇論文中，我們提出一個山石場景的三維幾何分析與水墨畫模擬合成系統，自動畫出俱山水畫風格的山岩作品。透過使用者給予的山岳模型組合場景，經系統的三維幾何分析出山岳輪廓與石質紋理的數據參數後，隨即套入水墨模擬模組中，便能自動產生出電腦影像的山水畫作品。如此使用者只需安排組合出想要的立體山岳場景，即使完全不懂筆墨技法與皴法技巧之下，也能彈指之間創作出一幅大好河山。

Chinese ink painting has rather a long history. Burgeoned with landscaping painting in East Chin Dynasty, legacy has been passed down through many masters over more than sixteen centuries, accruing tremendous technique and experience. Given the complexity of the technique, the diversity of the subject matters involved, the manipulation of brushes and ink alone require much practice. The quick water absorbency nature of the paper dictates sure, skillful command of technique; there is simply no room for mistakes. It is only so, can the tonality of ink in a single brush stroke be rendered to marvel. Therefore, linear beauty and ink variety of landscape painting can be the most difficult in Chinese ink painting. In this thesis, we propose a three-dimensional geometric analysis of landscape scene and ink painting simulation synthesizing system for automatic rendering of rocks in landscape painting style. Through the composite of mountain model assigned by the user and the system’s 3D geometric analysis of scene contours and rock textures, all the aforesaid digital data input into the ink painting simulation model will be able to produce computer imagery of landscape painting automatically. With arranging 3D landscape scenes, even a layman, entirely ignorant of the complexity of the technical skill, will be able to produce a beautiful landscape ink painting