Curved Ray Traversal
| Autor: | Christiaan Gribble |
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| Rok vydání: | 2021 |
| Předmět: |
Source code
Wrapper library Computer science media_common.quotation_subject ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Data structure Sample (graphics) Computational science Rendering (computer graphics) Visualization Tree traversal Tomography ComputingMethodologies_COMPUTERGRAPHICS media_common |
| Zdroj: | Ray Tracing Gems II ISBN: 9781484271841 |
| Popis: | We present an implementation of curved ray traversal through volumes of spatially varying refractive indices. Our work is motivated by problems in gradient field tomography, including simulation, reconstruction, and visualization of unknown compressible flows. Reconstruction, in particular, requires computing, storing, and later retrieving sample points along each ray, which in turn necessitates a multi-pass traversal algorithm to overcome potentially burdensome memory requirements. The data structures and functions implementing this algorithm also enable direct visualization, including rendering of objects with varying refractive indices. We highlight a GPU implementation in OWL, the OptiX 7 Wrapper Library, and demonstrate sampling for reconstruction and interactive rendering of refractive objects. We also provide source code, distributed under a permissive open source license, to enable readers to explore, modify, or enhance our curved ray traversal implementation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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