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Real Time Rendering of Atmospheric Scattering and Volumetric Shadows
| Content Provider | CiteSeerX |
|---|---|
| Author | Cros, Charles Didier, Arquès Venceslas, Biri |
| Abstract | Real time rendering of atmospheric light scattering is one of the most difficult lighting effect to achieve in computer graphics. This paper presents a new real time method which renders these effects including volumetric shadows, which provides a great performance improvement over previous methods. Using an analytical expression of the light transport equation we are able to render directly the contribution of the participating medium on any surface. The rendering of shadow planes, sorted with a spatial coherence technique, and in the same philosophy than the shadow volume algorithm will add the volumetric shadows. Realistic images can be produced in real time for usual graphic scenes and at a high level framerate for complex scenes, allowing animation of lights, objects or even participating media. The method proposed in this paper use neither precomputation depending on light positions, nor texture memory. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Usual Graphic Scene Previous Method Real Time Rendering Realistic Image Michelin Sylvain Volumetric Shadow Texture Memory Computer Graphic Light Position New Real Time Method Paper Use Shadow Volume Algorithm High Level Framerate Shadow Plane Atmospheric Light Complex Scene Light Transport Equation Analytical Expression Great Performance Improvement Spatial Coherence Technique |
| Content Type | Text |
| Resource Type | Article |
