Fast analytical motion blur with transparency
| Autor: | Mads J. L. Rønnow, Ulf Assarsson, Marco Fratarcangeli |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Ground truth
Pixel Computer science business.industry Motion blur ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION General Engineering Bilinear interpolation 020207 software engineering 02 engineering and technology Computer Graphics and Computer-Aided Design Real-time rendering Rendering (computer graphics) Human-Computer Interaction 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Computer vision Transparency (data compression) Prism Artificial intelligence business ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | Computers & Graphics. 95:36-46 |
| ISSN: | 0097-8493 |
| DOI: | 10.1016/j.cag.2021.01.006 |
| Popis: | We introduce a practical parallel technique to achieve real-time motion blur for textured and semi-transparent triangles with high accuracy using modern commodity GPUs. In our approach, moving triangles are represented as prisms. Each prism is bounded by the initial and final position of the triangle during one animation frame and three bilinear patches on the sides. Each prism covers a number of pixels for a certain amount of time according to its trajectory on the screen. We efficiently find, store and sort the list of prisms covering each pixel including the amount of time the pixel is covered by each prism. This information, together with the color, texture, normal, and transparency of the pixel, is used to resolve its final color. We demonstrate the performance, scalability, and generality of our approach in a number of test scenarios, showing that it achieves a visual quality practically indistinguishable from the ground truth in a matter of just a few milliseconds, including rendering of textured and transparent objects. A supplementary video has been made available online. |
| Databáze: | OpenAIRE |
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