dc.contributor.author | Yusov, Egor | en_US |
dc.contributor.editor | Ingo Wald and Jonathan Ragan-Kelley | en_US |
dc.date.accessioned | 2015-07-06T15:26:48Z | |
dc.date.available | 2015-07-06T15:26:48Z | |
dc.date.issued | 2014 | en_US |
dc.identifier.isbn | 978-3-905674-60-6 | en_US |
dc.identifier.issn | 2079-8679 | en_US |
dc.identifier.uri | http://dx.doi.org/10.2312/hpg.20141101 | en_US |
dc.identifier.uri | https://diglib.eg.org:443/handle/10.2312/hpg.20141101 | |
dc.description.abstract | We present a new method for rendering realistic cumulus clouds in real time. The clouds in our approach consist of randomly rotated and scaled copies of a single reference particle. During the pre-processing, we pre-compute optical depth, single and multiple scattering inside the reference particle for every camera position, orientation and light direction, and store the information in the look-up tables. At run time, information from the look-up tables is used to compute the cloud shading, avoiding any ray marching or slicing. To control the level of detail, we introduce a new technique which provides high fidelity for close clouds while using a coarse representation for distant regions. In addition to this, we present a new method for blending particles. Compared to traditional alpha-blending, this method produces more accurate visual results by accounting for volumetric intersection. The method merges collection of individual particles into a continuous medium, and also eliminates temporal artifacts. Our technique is able to produce realistic images at high frame rates. | en_US |
dc.publisher | The Eurographics Association | en_US |
dc.subject | I.3.7 [Computer Graphics] | en_US |
dc.subject | Three Dimensional Graphics and Realism | en_US |
dc.subject | Color | en_US |
dc.subject | shading | en_US |
dc.subject | shadowing | en_US |
dc.subject | and texture | en_US |
dc.title | High-Performance Rendering of Realistic Cumulus Clouds Using Pre-computed Lighting | en_US |
dc.description.seriesinformation | Eurographics/ ACM SIGGRAPH Symposium on High Performance Graphics | en_US |