The Reyes image rendering architecture
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Rendering antialiased shadows with depth maps
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
The synthesis and rendering of eroded fractal terrains
SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques
The accumulation buffer: hardware support for high-quality rendering
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
The shadow depth map revisited
Graphics Gems III
Fast shadows and lighting effects using texture mapping
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Discontinuity Meshing for Accurate Radiosity
IEEE Computer Graphics and Applications
Radiosity and realistic image synthesis
Radiosity and realistic image synthesis
View interpolation for image synthesis
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
A fast shadow algorithm for area light sources using backprojection
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Fast computation of shadow boundaries using spatial coherence and backprojections
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Plenoptic modeling: an image-based rendering system
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
Proceedings of the 1997 symposium on Interactive 3D graphics
An image-based approach to three-dimensional computer graphics
An image-based approach to three-dimensional computer graphics
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
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
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
Scalable distributed visualization using off-the-shelf components
PVGS '99 Proceedings of the 1999 IEEE symposium on Parallel visualization and graphics
Shadow algorithms for computer graphics
SIGGRAPH '77 Proceedings of the 4th annual conference on Computer graphics and interactive techniques
IEEE Computer Graphics and Applications
Casting curved shadows on curved surfaces
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
Shadow penumbras for complex objects by depth-dependent filtering of multi-layer depth images
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
Scalable interactive volume rendering using off-the-shelf components
PVG '01 Proceedings of the IEEE 2001 symposium on parallel and large-data visualization and graphics
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Local illumination environments for direct lighting acceleration
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
All-frequency shadows using non-linear wavelet lighting approximation
ACM SIGGRAPH 2003 Papers
A geometry-based soft shadow volume algorithm using graphics hardware
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
Precomputed shadow fields for dynamic scenes
ACM SIGGRAPH 2005 Papers
Soft shadows from extended light sources with penumbra deep shadow maps
GI '05 Proceedings of Graphics Interface 2005
Fast scene voxelization and applications
I3D '06 Proceedings of the 2006 symposium on Interactive 3D graphics and games
All-frequency relighting of glossy objects
ACM Transactions on Graphics (TOG)
Real-time soft shadows in dynamic scenes using spherical harmonic exponentiation
ACM SIGGRAPH 2006 Papers
Efficient complex shadows from environment maps
SIGGRAPH '04 ACM SIGGRAPH 2004 Posters
Ray tracing depth maps using precomputed edge tables
SIGGRAPH '05 ACM SIGGRAPH 2005 Sketches
A first-order analysis of lighting, shading, and shadows
ACM Transactions on Graphics (TOG)
Efficient data reduction and cache-coherent techniques toward real-time performance
ACM SIGGRAPH 2007 courses
Real-time, all-frequency shadows in dynamic scenes
ACM SIGGRAPH 2008 papers
Soft irregular shadow mapping: fast, high-quality, and robust soft shadows
Proceedings of the 2009 symposium on Interactive 3D graphics and games
Real-Time Soft Shadows Using Temporal Coherence
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part II
ACM SIGGRAPH ASIA 2009 Courses
Research on shadow map based shadow generation
Edutainment'10 Proceedings of the Entertainment for education, and 5th international conference on E-learning and games
Frequency analysis and sheared filtering for shadow light fields of complex occluders
ACM Transactions on Graphics (TOG)
An efficient method for rendering detailed soft shadow
Edutainment'06 Proceedings of the First international conference on Technologies for E-Learning and Digital Entertainment
A theory of monte carlo visibility sampling
ACM Transactions on Graphics (TOG)
Axis-aligned filtering for interactive sampled soft shadows
ACM Transactions on Graphics (TOG) - Proceedings of ACM SIGGRAPH Asia 2012
Exploiting visibility correlation in direct illumination
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Sample based visibility for soft shadows using alias-free shadow maps
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Real-time appearance preserving out-of-core rendering with shadows
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
All-frequency relighting of non-diffuse objects using separable BRDF approximation
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Interactive, multiresolution image-space rendering for dynamic area lighting
EGSR'10 Proceedings of the 21st Eurographics conference on Rendering
Design and novel uses of higher-dimensional rasterization
EGGH-HPG'12 Proceedings of the Fourth ACM SIGGRAPH / Eurographics conference on High-Performance Graphics
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
Real-time soft shadow mapping by backprojection
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
Occlusion-free camera control for multiple targets
EUROSCA'12 Proceedings of the 11th ACM SIGGRAPH / Eurographics conference on Computer Animation
Occlusion-free camera control for multiple targets
Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation
Instant convolution shadows for volumetric detail mapping
ACM Transactions on Graphics (TOG)
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We present two efficient imaged-based approaches for computation and display of high-quality soft shadows from area light sources. Our methods are related to shadow maps and provide the associated benefits. The computation time and memory requirements for adding soft shadows to an image depend on image size and the number of lights, not geometric scene complexity. We also show that because area light sources are localized in space, soft shadow computations are particularly well suited to imaged-based rendering techniques. Our first approach—layered attenuation maps—achieves interactive rendering rates, but limits sampling flexibility, while our second method—coherence-based raytracing of depth images—is not interactive, but removes the limitations on sampling and yields high quality images at a fraction of the cost of conventional raytracers. Combining the two algorithms allows for rapid previewing followed by efficient high-quality rendering.