Interactive Rendering with Coherent Ray Tracing

dc.contributor.authorWald, Ingoen_US
dc.contributor.authorSlusallek, Philippen_US
dc.contributor.authorBenthin, Carstenen_US
dc.contributor.authorWagner, Markusen_US
dc.date.accessioned2015-02-16T11:05:26Z
dc.date.available2015-02-16T11:05:26Z
dc.date.issued2001en_US
dc.description.abstractFor almost two decades researchers have argued that ray tracing will eventually become faster than the rasterization technique that completely dominates todays graphics hardware. However, this has not happened yet. Ray tracing is still exclusively being used for off-line rendering of photorealistic images and it is commonly believed that ray tracing is simply too costly to ever challenge rasterization-based algorithms for interactive use. However, there is hardly any scientific analysis that supports either point of view. In particular there is no evidence of where the crossover point might be, at which ray tracing would eventually become faster, or if such a point does exist at all.This paper provides several contributions to this discussion: We first present a highly optimized implementation of a ray tracer that improves performance by more than an order of magnitude compared to currently available ray tracers. The new algorithm make better use of computational resources such as caches and SIMD instructions and better exploits image and object space coherence. Secondly, we show that this software implementation can challenge and even outperform high-end graphics hardware in interactive rendering performance for complex environments. We also provide an brief overview of the benefits of ray tracing over rasterization algorithms and point out the potential of interactive ray tracing both in hardware and software.en_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume20en_US
dc.identifier.doi10.1111/1467-8659.00508en_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages153-165en_US
dc.identifier.urihttps://doi.org/10.1111/1467-8659.00508en_US
dc.publisherBlackwell Publishers Ltd and the Eurographics Associationen_US
dc.titleInteractive Rendering with Coherent Ray Tracingen_US
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