S-buffer: Sparsity-aware Multi-fragment Rendering

Andreas A. Vasilakis, Ioannis Fudos
Department of Computer Science, University of Ioannina, Greece


   title={S-buffer: Sparsity-aware Multi-fragment Rendering},

   author={Vasilakis, A.A. and Fudos, I.},

   booktitle={Eurographics 2012-Short Papers},



   organization={The Eurographics Association}


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This work introduces S-buffer, an efficient and memory-friendly gpu-accelerated A-buffer architecture for multi-fragment rendering. Memory is organized into variable contiguous regions for each pixel, thus avoiding limitations set in linked-lists and fixed-array techniques. S-buffer exploits fragment distribution for precise allocation of the needed storage and pixel sparsity (empty pixel ratio) for computing the memory offsets for each pixel in a parallel fashion. An experimental comparative evaluation of our technique over previous multi-fragment rendering approaches in terms of memory and performance is provided.
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