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CGI
2001
IEEE

Hardware-Accelerated Rendering of Antialiased Shadows with Shadow Maps

10 years 6 months ago
Hardware-Accelerated Rendering of Antialiased Shadows with Shadow Maps
We present a hardware-accelerated method for rendering high quality, antialiased shadows using the shadow map approach. Instead of relying on dedicated hardware support for shadow map filtering, we propose a general rendering algorithm that can be used on most graphics workstations. The filtering method softens shadow boundaries by using a technique called percentage closer filtering which is commonly used in software renderers, e.g ray tracing. In this paper we describe how the software algorithm can be efficiently mapped to hardware. In order to achieve realtime or at least interactive frame rates we also propose a slightly modified shadow filtering method that saves valuable hardware resources while still achieving good image quality.
Stefan Brabec, Hans-Peter Seidel
Added 23 Aug 2010
Updated 23 Aug 2010
Type Conference
Year 2001
Where CGI
Authors Stefan Brabec, Hans-Peter Seidel
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