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标题: Efficient Calculation Method of Spherical Signed Distance Functionfor Real-time [打印本页]

作者: 彬彬    时间: 2012-1-4 16:59
标题: Efficient Calculation Method of Spherical Signed Distance Functionfor Real-time
1 Introduction

Real-time rendering of dynamic scenes illuminated by complex,

all-frequency lighting with highly glossy BRDFs remains a challenging

problem. Although several methods have been proposed

to render dynamic scenes, these methods can not handle

deformable objects [Zhou et al. 2005], all-frequency lighting

[Ren et al. 2006; Nowrouzezahrai et al. 2009], or highly glossy

BRDFs [Annen et al. 2008].

We propose a real-time rendering method for dynamic scenes under

all-frequency environmental lighting. To render the object surfaces,

the product of the environmental lighting, the visibility function

and the BRDF is integrated at each shading point. Our method

represents the environmental lighting and the BRDFs with spherical

Gaussians and represents the visibility functions with spherical

signed distance functions (SSDFs). Although these representations

enable us to render scenes under all-frequency lighting in real-time,

the previous method [Wang et al. 2009] is limited to static scenes

since the computational costs of SSDFs are quite high.

To address this problem, we propose a simple but efficient calculation

method of SSDFs by approximating the object geometries with

a set of spheres. Our GPU implementation achieves real-time rendering

of fully dynamic scenes where the viewpoints, lighting, and

BRDFs can be changed at run-time and objects can move, rotate

and deform in real-tim
作者: 菜刀吻电线    时间: 2012-2-19 23:21
读铁系缘分,顶铁系友情

作者: 菜刀吻电线    时间: 2012-4-12 23:28
凡系斑竹滴话要听;凡系朋友滴帖要顶

作者: C.R.CAN    时间: 2012-7-29 23:28
提醒猪猪,千万不能让你看见

作者: 铁锹    时间: 2012-7-30 09:03
3D技术领衔行业应用_技术创新促进产业升级


3D全息投影让乐器也疯狂




2012国际3D魔幻艺术中国特别展杭州揭幕





我国牵头制定智能电视和3D电视国际标准





美国4D影院模拟大风爆炸等效果



什么比Kinect精确100倍?_且看体感控制系统


Unity引擎滑稽3D跑酷玩儿命跑


非同一般的新GPS系统增强现实


作者: tc    时间: 2012-8-26 00:01
都闪开,介个帖子,偶来顶

作者: 奇    时间: 2012-10-5 23:18
发了那么多,我都不知道该用哪个给你回帖了,呵呵

作者: 奇    时间: 2012-10-14 23:18
读铁系缘分,顶铁系友情

作者: 奇    时间: 2012-11-4 23:19
凡系斑竹滴话要听;凡系朋友滴帖要顶

作者: 菜刀吻电线    时间: 2013-2-20 23:24
真不错,全存下来了.





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