发明专利
JP4672072B2 Non-realistic cartoon contour line provides a method and apparatus in the three-dimensional video graphics system
有权
基本信息:
- 专利标题： Non-realistic cartoon contour line provides a method and apparatus in the three-dimensional video graphics system
- 申请号：JP2009130618 申请日：2009-05-29
- 公开(公告)号：JP4672072B2 公开(公告)日：2011-04-20
- 发明人： 吉孝 安本
- 申请人： 任天堂株式会社
- 专利权人： 任天堂株式会社
- 当前专利权人： 任天堂株式会社
- 优先权： US15566099 1999-09-24; US46810999 1999-12-21
- 主分类号： G06T15/70
- IPC分类号： G06T15/70 ; G06T19/00 ; A63F13/00 ; A63F13/06 ; G06F19/00 ; G06T15/00 ; G06T17/40
摘要：
In a 3D computer graphics system such as a 3D home video game console, efficient techniques for generating non-photorealistic effects such as carto on outlining involve generating and displaying border lines at object edges bas ed on contents of a pixel memory. Some techniques use depth (Z) values to determin e which pixels are located at object edges, and selectively blend border coloration into those pixels which are then displayed. Object edges are located by comparing pixel depth values with neighboring pixel depth values (e.g., calculating a "distance" value based on the absolute values of the distances) between a pixel's depth and depths of neighboring pixels). A desired border line color is blended into the pixel's color value based on the calculated distance value. In one particular example, the distance value is used to calculate a pixel Alpha value which is then used to control the amount of border color that is blended int o the pixel color. The Alpha value may be modulated by pixel depth. Other techniqu es may cause object portions with identification values stored in frame buffer locations normally used to store Alpha values. These ID values can be used t o identify object portion intersections for applying a border line color to.
公开/授权文献:
信息查询:
EspacenetIPC结构图谱:
| G | 物理 |
| --G06 | 计算；推算；计数 |
| ----G06T | 一般的图像数据处理或产生 |
| ------G06T15/00 | 三维（3D）图像的加工，例如从一个模型到一个位像图形 |
| --------G06T15/70 | .动画效果 |