Efficient algorithms for local and global accessibility shading
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Realistic modeling and rendering of plant ecosystems
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Approximate and probabilistic algorithms for shading and rendering structured particle systems
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Interactive visualization of complex plant ecosystems
Proceedings of the conference on Visualization '02
Unified Approach to Prefiltered Environment Maps
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
Advanced Global Illumination
Real-time obscurances with color bleeding
SCCG '03 Proceedings of the 19th spring conference on Computer graphics
Proceedings of the 2005 symposium on Interactive 3D graphics and games
Hemispherical rasterization for self-shadowing of dynamic objects
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Real-time ambient occlusion for dynamic character skins
Proceedings of the 2007 symposium on Interactive 3D graphics and games
Hardware accelerated ambient occlusion techniques on GPUs
Proceedings of the 2007 symposium on Interactive 3D graphics and games
Real-Time Illumination of Foliage Using Depth Maps
ICCS '08 Proceedings of the 8th international conference on Computational Science, Part II
Surface Visibility Probabilities in 3D Cluttered Scenes
ECCV '08 Proceedings of the 10th European Conference on Computer Vision: Part I
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part I
Proceedings of the Conference on High Performance Graphics
Real-time Realistic Rendering and Lighting of Forests
Computer Graphics Forum
Technical Section: Analytic ambient occlusion using exact from-polygon visibility
Computers and Graphics
Expressive illumination of foliage based on implicit surfaces
NPH'07 Proceedings of the Third Eurographics conference on Natural Phenomena
Rendering trees with indirect lighting in real time
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Multi-layer screen-space ambient occlusion using hybrid sampling
Proceedings of the 12th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry
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Natural scenes contain large amounts of geometry, such as hundreds of thousands or even millions of tree leaves and grass blades. Subtle lighting effects present in such environments usually include a significant amount of occlusion effects and lighting variation. These effects are important for realistic renderings of such natural environments; however, plausible lighting and full global illumination computation come at prohibitive costs especially for interactive viewing. As a solution to this problem, we present a simple approximation to integrated visibility over a hemisphere (ambient occlusion) that allows interactive rendering of complex and dynamic scenes. Based on a set of simple assumptions, we show that our method allows the rendering of plausible variation in lighting at modest additional computation and little or no precomputation, for complex and dynamic scenes.