“Screen-space Percentage-Closer Soft Shadows” by Kautz, Mahdi, Holzschuch and Soler
Conference:
Type(s):
Title:
- Screen-space Percentage-Closer Soft Shadows
Presenter(s)/Author(s):
Abstract:
We present an algorithm for computing Percentage-Closer Soft Shadows inside a screen-space rendering loop. Our algorithm is faster than traditional soft shadows based on percentage closer filtering, while providing soft shadows of similar visual quality. It combines naturally with a deferred shading pipeline, making it an ideal choice for video games. This algorithm is not only faster, but allows the use of larger shadow maps without dramatically affecting the rendering speed.
References:
1. Fernando, R. 2005. Percentage-closer soft shadows. In SIGGRAPH ’05: ACM SIGGRAPH 2005 Sketches, ACM, New York, NY, USA, 35.
2. Pham, T. Q., and van Vliet, L. J. 2005. Separable bilateral filtering for fast video preprocessing. Multimedia and Expo, 2005. ICME 2005. IEEE International Conference on.
3. Robison, A., and Shirley, P. 2009. Image space gathering. In HPG ’09: Proceedings of the Conference on High Performance Graphics 2009, ACM, New York, NY, USA, 91–98.
4. Tomasi, C., and Manduchi, R. 1998. Bilateral filtering for gray and color images. In ICCV ’98: Proceedings of the Sixth International Conference on Computer Vision, IEEE Computer Society, Washington, DC, USA, 839.
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