The accumulation buffer: hardware support for high-quality rendering
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
A new simple and efficient antialiasing with subpixel masks
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Physically based lighting calculations for computer graphics
Physically based lighting calculations for computer graphics
EXACT: algorithm and hardware architecture for an improved A-buffer
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
InfiniteReality: a real-time graphics system
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Hardware accelerated rendering of antialiasing using a modified a-buffer algorithm
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Z3: an economical hardware technique for high-quality antialiasing and transparency
HWWS '99 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
R-buffer: a pointerless A-buffer hardware architecture
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
Real-Time Rendering
The SAGE graphics architecture
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Transparency and Antialiasing Algorithms Implemented with the Virtual Pixel Maps Technique
IEEE Computer Graphics and Applications
SIGGRAPH '83 Proceedings of the 10th annual conference on Computer graphics and interactive techniques
The A -buffer, an antialiased hidden surface method
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
Delay streams for graphics hardware
ACM SIGGRAPH 2003 Papers
Graphics for the masses: a hardware rasterization architecture for mobile phones
ACM SIGGRAPH 2003 Papers
A directionally adaptive edge anti-aliasing filter
Proceedings of the Conference on High Performance Graphics 2009
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Today's hardware graphics accelerators incorporate techniques to antialias edges and minimize geometry-related sampling artifacts. Two such techniques, brute force supersampling and multisampling, increase the sampling rate by rasterizing the triangles in a larger antialiasing buffer that is then filtered down to the size of the framebuffer. The sampling rate is proportional to the number of subsamples in the antialiasing buffer and, when no compression is used, to the memory it occupies. In turn, a larger antialiasing buffer implies an increase in bandwidth, one of the limiting resources for today's applications. In this paper we propose a mechanism to compress the antialiasing buffer and limit the bandwidth requirements while maintaining higher sampling rates. The usual framebuffer-related functions of OpenGL are supported: alpha blending, stenciling, color operations, and color masking. The technique is scalable, allowing for user-specified maximal and minimal sampling rates. The compression scheme includes a mechanism to nicely degrade the quality when too much information would be required. A lower bound on the quality of the resulting image is also available since the sampling rate will never be less than the user-specified minimal rate. The compression scheme is simple enough to be incorporated into standard hardware graphics accelerators. Software simulations show that, for a given bandwidth, our technique offers improved visual results over multisampling schemes.