Figure 1: Armadillo model refracting a distant environment rendered using ray tracing (left) and using our technique (center). Jumping Armadillo rendered with our technique (right). Our approach requires no preprocessing, allowing real-time rendering of deforming objects. AbstractLight refraction is an important optical phenomenon whose simulation greatly contributes to the realism of synthesized images. Although ray tracing can correctly simulate light refraction, doing it in real time still remains a challenge. This work presents an imagespace technique to simulate the refraction of distant environments in real time. Contrary to previous approaches for interactive refraction at multiple interfaces, the proposed technique does not require any preprocessing. As a result, it can be directly applied to objects undergoing shape deformations, which is a common and important feature for character animation in computer games and movies. Our approach is general in the sense that it can be used with any object representation that can be rasterized on a programmable GPU. It is based on an efficient ray-intersection procedure performed against a dynamic depth map and carried out in 2D texture space. We demonstrate the effectiveness of our approach by simulating refractions through animated characters composed of several hundred thousand polygons in real time.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.