Istituto di Scienza e Tecnologie dell'Informazione     
Tarini M., Panozzo D., Sorkine O. Accurate and efficient lighting for skinned models. In: Computer Graphics Forum, vol. 33 (2) pp. 421 - 428. Blackwell Publishing / Wiley, 2014.
In the context of real-time, GPU-based rendering of animated skinned meshes, we propose a new algorithm to compute surface normals with minimal overhead both in terms of the memory footprint and the required per-vertex operations. By accounting for the variation of the skinning weights over the surface, we achieve a higher visual quality compared to the standard approximation ubiquitously used in video-game engines and other real-time applications. Our method supports Linear Blend Skinning and Dual Quaternion Skinning. We demonstrate the advantages of our technique on a variety of datasets and provide a complete open-source implementation, including GLSL shaders.
URL: http://onlinelibrary.wiley.com/doi/10.1111/cgf.12330/abstract
DOI: 10.1111/cgf.12330
Subject Computer graphics

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