Decoupled Shading for Real-time Heterogeneous Volume Illumination
| dc.contributor.author | Zhang, Yubo | en_US |
| dc.contributor.author | Ma, Kwan-Liu | en_US |
| dc.contributor.editor | Kwan-Liu Ma and Giuseppe Santucci and Jarke van Wijk | en_US |
| dc.date.accessioned | 2016-06-09T09:33:01Z | |
| dc.date.available | 2016-06-09T09:33:01Z | |
| dc.date.issued | 2016 | en_US |
| dc.description.abstract | Existing real-time volume rendering techniques which support global illumination are limited in modeling distinct realistic appearances for classified volume data, which is a desired capability in many fields of study for illustration and education. Directly extending the emission-absorption volume integral with heterogeneous material shading becomes unaffordable for real-time applications because the high-frequency view-dependent global lighting needs to be evaluated per sample along the volume integral. In this paper, we present a decoupled shading algorithm for multi-material volume rendering that separates global incident lighting evaluation from per-sample material shading under multiple light sources. We show how the incident lighting calculation can be optimized through a sparse volume integration method. The quality, performance and usefulness of our new multi-material volume rendering method is demonstrated through several examples. | en_US |
| dc.description.number | 3 | en_US |
| dc.description.sectionheaders | Volume Data Visualization | en_US |
| dc.description.seriesinformation | Computer Graphics Forum | en_US |
| dc.description.volume | 35 | en_US |
| dc.identifier.doi | 10.1111/cgf.12916 | en_US |
| dc.identifier.issn | 1467-8659 | en_US |
| dc.identifier.pages | 401-410 | en_US |
| dc.identifier.uri | https://doi.org/10.1111/cgf.12916 | en_US |
| dc.identifier.uri | https://diglib.eg.org:443/handle/10 | |
| dc.publisher | The Eurographics Association and John Wiley & Sons Ltd. | en_US |
| dc.subject | Keywords | en_US |
| dc.subject | Global illumination | en_US |
| dc.subject | high performance | en_US |
| dc.subject | multi | en_US |
| dc.subject | material | en_US |
| dc.subject | multiple scattering | en_US |
| dc.subject | soft shadow | en_US |
| dc.subject | volume rendering | en_US |
| dc.subject | I.3.7 [Computer Graphics] | en_US |
| dc.subject | Three Dimensional Graphics and Realism | en_US |
| dc.subject | en_US | |
| dc.subject | I.3.8 [Computer Graphics] | en_US |
| dc.subject | Applications | en_US |
| dc.title | Decoupled Shading for Real-time Heterogeneous Volume Illumination | en_US |