这张封面由卡通画家Chris Ware绘制，描绘了秋日万圣节的魔法，也揶揄了某种文化现象。
This cover, by the great cartoonist Chris Ware, captures the autumnal magic of Halloween while making wry cultural commentary.
首先介绍如何从手工绘制的卡通烟雾画面中提取烟雾骨架的静态结构与动态结构，然后沿骨架进行不同的形状绘制来生成卡通烟缕和烟团。
It shows how to abstract static and dynamic structures of the smoke skeleton from hand drawn series and, based on those structures, reproduce smoke skein and smoke puffs with proper rendering models.
卡通渲染的目的是通过计算机自动生成传统卡通风格的模型与场景的绘制效果。
The motivation of cartoon rendering is auto generating conventional cartoon style pictures by the computer.
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