Image, Colour and Illumination in Animation
Deferred shadowing for real-time rendering of dynamic scenes under environment illumination
Article first published online: 15 SEP 2005
Copyright © 2005 John Wiley & Sons, Ltd.
Computer Animation and Virtual Worlds
Special Issue: CASA 2005
Volume 16, Issue 3-4, pages 475–486, July 2005
How to Cite
Tamura, N., Johan, H. and Nishita, T. (2005), Deferred shadowing for real-time rendering of dynamic scenes under environment illumination. Comp. Anim. Virtual Worlds, 16: 475–486. doi: 10.1002/cav.108
- Issue published online: 15 SEP 2005
- Article first published online: 15 SEP 2005
- deferred shadowing;
- photo-realistic animation;
- real-time rendering;
- environment illumination
Environment illumination, which is a complex and distant lighting environment represented by images, is often applied to create photo-realistic images. However, creating photo-realistic animations under environment illumination is exceedingly compute intensive. The Precomputed Radiance Transfer (PRT) methods achieve real-time rendering under environment illumination; however, these methods only have a limited application in animation because the objects in the scene cannot be moved or rotated. In this paper, we propose a method for rendering photo-realistic animations of dynamic scenes under environment illumination in real time. We notice the fact that when objects are moved or rotated, changes of radiances occur mainly in the regions of shadows cast by other objects. Our method makes a distinction between self-shadow and shadows cast by other objects and computes these two kinds of shadows efficiently. Copyright © 2005 John Wiley & Sons, Ltd.