标题: 以资料驱动的火焰合成与设计
Data-driven Fire Synthesis and Design
作者: 张泽清
Chang, Tse-Ching
庄荣宏
黄世强
Chuang, Jung-Hong
Wong, Sai-Keung
多媒体工程研究所
关键字: 流体模拟;火焰模拟;合成;流体模拟控制;fluid simulation;fire simulation;synthesis;fluid simulation control
公开日期: 2013
摘要: 我们提出一个新的以资料驱动合成方式来设计火焰画。我们系统预先计算一组有着不同类型的基底火焰资料,并且将他们以流线资料的形式储存并建立基底资料库。我们的系统同时也提供一个设计介面让使用者能够简单地以骨架设计出火焰的形状。之后,我们 再以资料库内的流线适应到所设计火焰形状的骨架上以合成出设计的火焰动画影格,接着 再利用流图来合成出所设计的火焰动画。所使用的适应方法的目是用来选取一组基底流线的线性组合来适应到使用者所设计的火焰形状的骨架。流图以有限的动画影格产生一个可以长时间拨放的动画并且可以让维持在即时帧率。另外,我们的设计流程可让使用者不用去调整物理参数以设计出火焰的形状。
We present a novel data-driven synthesis approach to design and animate the fires. Our system precomputes a set of basis fire simulations with different configurations and stores these basis fires as pathlines to construct a basis database. Our system also provides an interface for users to design the shape of fires easily by using the skeletons. Then, we synthesize the designed fire animation frames by using the pathlines in the database to fit the skeletons of designed shapes and apply the flow graph to synthesize a fire animation with the desired shapes. The fitting method is employed to select a set of pathlines of basis fires in order to fit the skeletons of the designed fire shapes. The flow graph is used to generate a long-lasting fire animation by using the finite animation frames and make the synthesized fire animation run at real-time rates. Our design process enables users to design the fire shapes without worrying about tuning the physical parameters.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT070056651
http://hdl.handle.net/11536/74122
显示于类别:Thesis