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SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Shadow algorithms for computer graphics
SIGGRAPH '77 Proceedings of the 4th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Casting curved shadows on curved surfaces
SIGGRAPH '78 Proceedings of the 5th annual conference on Computer graphics and interactive techniques
Second-Depth Shadow Mapping
Journal of Graphics Tools - Special on hardware-accelerated rendering techniques
CGI '04 Proceedings of the Computer Graphics International
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ACM Transactions on Graphics (TOG)
I3D '06 Proceedings of the 2006 symposium on Interactive 3D graphics and games
Dynamic adaptive shadow maps on graphics hardware
SIGGRAPH '05 ACM SIGGRAPH 2005 Sketches
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Light space perspective shadow maps
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Anti-aliasing and continuity with trapezoidal shadow maps
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Warping and partitioning for low error shadow maps
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
Logarithmic perspective shadow maps
ACM Transactions on Graphics (TOG)
ACM SIGGRAPH ASIA 2009 Courses
Rectilinear texture warping for fast adaptive shadow mapping
I3D '12 Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
ACM SIGGRAPH 2012 Courses
ACM SIGGRAPH 2013 Courses
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Too little shadow map resolution and resulting undersampling artifacts, perspective and projection aliasing, have long been a fundamental problem of shadowing scenes with shadow mapping. We present a new smart, real-time shadow mapping algorithm that virtually increases the resolution of the shadow map beyond the GPU hardware limit where needed. We first sample the scene from the eye-point on the GPU to get the needed shadow map resolution in different parts of the scene. We then process the resulting data on the CPU and finally arrive at a hierarchical grid structure, which we traverse in kd-tree fashion, shadowing the scene with shadow map tiles where needed. Shadow quality can be traded for speed through an intuitive parameter, with a homogenous quality reduction in the whole scene, down to normal shadow mapping. This allows the algorithm to be used on a wide range of hardware.