计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2015年
5期
243-248,253
,共7页
2. 5D建模%投影轮廓线%纹理贴图%投影%卡通元素%卡通对象
2. 5D建模%投影輪廓線%紋理貼圖%投影%卡通元素%卡通對象
2. 5D건모%투영륜곽선%문리첩도%투영%잡통원소%잡통대상
2 . 5 D modeling%projected outline%texture mapping%projection%cartoon element%cartoon object
二维卡通制作技术大致分为计算机辅助2D卡通动画制作和利用3D建模技术渲染生成动画。将两者结合，提出一种2.5D卡通制作模型，通过几何结构的旋转进行纹理贴图，并构造卡通的旋转过程。在2D动画中，一个卡通形象本身隐含几何结构，将卡通形象定义为由只含一个典型几何结构卡通元素构成的卡通对象，利用典型几何结构二维投影变化规律，构建相应结构卡通元素的变形算法，分析长方体和球体卡通元素在转动时投影的变化规律，给出基于这些规律实现相应结构卡通元素伪3D转动效果的算法。通过长方体、球体、圆柱体进行旋转的实验结果证明了算法的有效性。
二維卡通製作技術大緻分為計算機輔助2D卡通動畫製作和利用3D建模技術渲染生成動畫。將兩者結閤，提齣一種2.5D卡通製作模型，通過幾何結構的鏇轉進行紋理貼圖，併構造卡通的鏇轉過程。在2D動畫中，一箇卡通形象本身隱含幾何結構，將卡通形象定義為由隻含一箇典型幾何結構卡通元素構成的卡通對象，利用典型幾何結構二維投影變化規律，構建相應結構卡通元素的變形算法，分析長方體和毬體卡通元素在轉動時投影的變化規律，給齣基于這些規律實現相應結構卡通元素偽3D轉動效果的算法。通過長方體、毬體、圓柱體進行鏇轉的實驗結果證明瞭算法的有效性。
이유잡통제작기술대치분위계산궤보조2D잡통동화제작화이용3D건모기술선염생성동화。장량자결합，제출일충2.5D잡통제작모형，통과궤하결구적선전진행문리첩도，병구조잡통적선전과정。재2D동화중，일개잡통형상본신은함궤하결구，장잡통형상정의위유지함일개전형궤하결구잡통원소구성적잡통대상，이용전형궤하결구이유투영변화규률，구건상응결구잡통원소적변형산법，분석장방체화구체잡통원소재전동시투영적변화규률，급출기우저사규률실현상응결구잡통원소위3D전동효과적산법。통과장방체、구체、원주체진행선전적실험결과증명료산법적유효성。
Technologies of 2 D cartoon animation can be roughly categorized into two types:one is computer-aided 2 D cartoon animation,and the other is rendering 3D models. These two both have their own pros and cons. So this paper proposes a way which combines both of them,that is 2. 5D cartoon modelling method which constructs the rotation of the cartoon by texture mapping. In 2D animation,a character has an implicit geometry structure. So in this paper,it defines a character as a cartoon object composed of only one typical geometry structure. This paper builds the deformation algorithm of corresponding structure through the two dimensional projection transformation of typical geometries. Detailed analysis of projection transformation patterns of rectangular and sphere are provided. Based on patterns founded,this paper provides algorithm for implementing pseudo-3D rotation effects for the corresponding carton elements, and gives the results of cuboid,sphere and cylinder to support the validity of the algorithm.
