Abstract
The standard cube mapping technique implemented in graphics pipelines, while useful in many scenarios, has significant shortcomings for important application areas in interactive computer graphics, e.g., dynamic environment mapping, omnidirectional shadow maps, or planetary-scale terrain rendering. Many alternative mapping methods have been proposed over the years with the purpose of reducing area and/or angular distortions. In this paper, we give an overview of methods suitable for interactive applications and analyze their properties. Furthermore, we evaluate a set of additional transformation functions and identify a simple new method with favorable distortion properties.
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