“Point Light Attenuation Without Singularity” by Yuksel
Conference:
Type(s):
Interest Area:
- Production & Animation, Research / Education, and Rendering
Entry Number: 18
Title:
- Point Light Attenuation Without Singularity
Session/Category Title: Rendering
Presenter(s)/Author(s):
Abstract:
Point lights with an inverse-square attenuation function are commonly used in computer graphics. We present an alternative formulation of point light attenuation that treats point lights as simplified forms of spherical lights. This eliminates the singularity of the inverse-square light attenuation function and makes it easier to work with point lights in practice. We also present how the typical ad hoc modifications of the inverse-square formula can be improved based on our formulation.
References:
Miloš Hašan, Jaroslav Křivánek, Bruce Walter, and Kavita Bala. 2009. Virtual Spherical Lights for Many-light Rendering of Glossy Scenes. ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2009) 28, 5, Article 143 (Dec. 2009), 6 pages. https: //doi.org/10.1145/1618452.1618489
Cem Yuksel. 2019. Stochastic Lightcuts. In High-Performance Graphics (HPG 2019). The Eurographics Association. https://doi.org/10.2312/hpg.20191192
