Mathematical elements for computer graphics (2nd ed.)
Mathematical elements for computer graphics (2nd ed.)
Improving radiosity solutions through the use of analytically determined form-factors
SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques
Computing the Aspect Graph for Line Drawings of Polyhedral Objects
IEEE Transactions on Pattern Analysis and Machine Intelligence
Adaptive mesh generation for global diffuse illumination
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Efficiently Computing and Representing Aspect Graphs of Polyhedral Objects
IEEE Transactions on Pattern Analysis and Machine Intelligence
Computing the antipenumbra of an area light source
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Discontinuity Meshing for Accurate Radiosity
IEEE Computer Graphics and Applications
Fast object-precision shadow generation for area light sources using BSP trees
I3D '92 Proceedings of the 1992 symposium on Interactive 3D graphics
Fast computation of shadow boundaries using spatial coherence and backprojections
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
SIGGRAPH '78 Proceedings of the 5th annual conference on Computer graphics and interactive techniques
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
An Analytic Approach to Illumination with Area Light Sources
An Analytic Approach to Illumination with Area Light Sources
Structured sampling and reconstruction of illumination for image synthesis
Structured sampling and reconstruction of illumination for image synthesis
Fast computation of shadow boundaries using spatial coherence and backprojections
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
The visibility skeleton: a powerful and efficient multi-purpose global visibility tool
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
3D visibility made visibly simple: an introduction to the visibility skeleton
SCG '97 Proceedings of the thirteenth annual symposium on Computational geometry
Progressive radiance evaluation using directional coherence maps
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Fast calculation of soft shadow textures using convolution
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
A perceptually based physical error metric for realistic image synthesis
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Direct illumination with lazy visibility evaluation
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Computing exact shadow irradiance using splines
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Fast and accurate hierarchical radiosity using global visibility
ACM Transactions on Graphics (TOG)
Shadow volume reconstruction from depth maps
ACM Transactions on Graphics (TOG)
Conservative volumetric visibility with occluder fusion
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Efficient image-based methods for rendering soft shadows
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Conservative visibility preprocessing for walkthroughs of complex urban scenes
VRST '00 Proceedings of the ACM symposium on Virtual reality software and technology
ACM Transactions on Graphics (TOG)
Real-time shadows for animated crowds in virtual cities
VRST '01 Proceedings of the ACM symposium on Virtual reality software and technology
ACM Transactions on Graphics (TOG)
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Approximate soft shadows on arbitrary surfaces using penumbra wedges
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
Forward area light map projection
Proceedings of the 2nd international conference on Computer graphics, virtual Reality, visualisation and interaction in Africa
Efficient clustering and visibility calculation for global illumination
Proceedings of the 2nd international conference on Computer graphics, virtual Reality, visualisation and interaction in Africa
Structured Penumbral Irradiance Computation
IEEE Transactions on Visualization and Computer Graphics
A geometry-based soft shadow volume algorithm using graphics hardware
ACM SIGGRAPH 2003 Papers
Combining edges and points for interactive high-quality rendering
ACM SIGGRAPH 2003 Papers
Penumbra maps: approximate soft shadows in real-time
EGRW '03 Proceedings of the 14th Eurographics workshop on Rendering
Rendering fake soft shadows with smoothies
EGRW '03 Proceedings of the 14th Eurographics workshop on Rendering
A Method to Generate Soft Shadows Using a Layered Depth Image and Warping
IEEE Transactions on Visualization and Computer Graphics
Soft shadow volumes for ray tracing
ACM SIGGRAPH 2005 Papers
SCG '07 Proceedings of the twenty-third annual symposium on Computational geometry
Interactive backprojected soft shadows with an occlusion camera shadow map
ACM SIGGRAPH 2007 posters
Real-time, all-frequency shadows in dynamic scenes
ACM SIGGRAPH 2008 papers
On the complexity of umbra and penumbra
Computational Geometry: Theory and Applications
Efficient ray traced soft shadows using multi-frusta tracing
Proceedings of the Conference on High Performance Graphics 2009
Combining higher-order wavelets and discontinuity meshing: a compact representation for radiosity
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Reflected and transmitted irradiance from area sources using vertex tracing
EGWR'01 Proceedings of the 12th Eurographics conference on Rendering
Shadow penumbras for complex objects by depth-dependent filtering of multi-layer depth images
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
A real-time beam tracer with application to exact soft shadows
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Soft shadows by ray tracing multilayer transparent shadow maps
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
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The fast identification of shadow regions due to area light sources is necessary for realistic rendering and for discontinuity meshing for global illumination. A new shadow-determination algorithm is presented that uses a data structure, called a backprojection, to represent the visible portion of a light source from any point in the scene. A complete discontinuity meshing algorithm is described for polyhedral scenes and area light sources, which includes an important class of light/geometry interactions that have not been implemented before. A fast incremental algorithm for computing backprojections is also described. The use of spatial subdivision, and heuristics based on computed statistics of typical scenes, results in efficient mesh and backprojection computation. Results of the implementation show that the use of the backprojection and discontinuity meshing permits accelerated high-quality rendering of shadows using both ray-casting and polygon-rendering with interpolants.