DocumentCode :
584674
Title :
GPU Real-Time Medium Model for Artistic Temporally Coherent Rendering
Author :
Fares, B. ; Jordane, S. ; Vincent, B.
Author_Institution :
L.I.A.S.D., Univ. Paris 8, St. Denis, France
fYear :
2012
fDate :
25-29 Nov. 2012
Firstpage :
319
Lastpage :
329
Abstract :
We present a consistent model for artistic medium reproduction in 3D scene renderings and animations. Computer generated stylized animations should reproduce the medium used by the artists while avoiding the artifacts present in hand-drawn animations. In our model, for each scene object, we create a surface grain according to the object geometry and apply it as additional material properties. Our system aims to make these additional material properties remain consistent to the scene / objects animation while avoiding the shower door and popping effects. Moreover, in contrast with existing methods in which coherence is primarily maintained during walkthroughs, our strategy consists in maintaining the grain attachment for any object rotations and non z-axis (i.e. depth) displacements and refining the grain density according to z-axis displacements. Furthermore to prevent this artifact, we propose to select salient additional material properties and reconstruct it for the whole image through a fractal surface reconstruction process. Our model is fully implemented on GPU, results are obtained without any adaptation of the original 3D scene or objects and the rendering process is real-time.
Keywords :
art; computer animation; fractals; graphics processing units; rendering (computer graphics); surface reconstruction; 3D scene animations; 3D scene renderings; GPU real-time medium model; additional material properties; artistic medium reproduction; artistic temporally coherent rendering; computer generated stylized animations; fractal surface reconstruction process; grain attachment; grain density relining; hand-drawn animation artifact avoidance; object geometry; object rotations; popping effect avoidance; shower door avoidance; surface grain; z-axis displacements; Animation; Coherence; Computational modeling; Image reconstruction; Noise; Rendering (computer graphics); Solid modeling; Expressive Rendring; Fractal; GPU; Medium Generation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Image Technology and Internet Based Systems (SITIS), 2012 Eighth International Conference on
Conference_Location :
Naples
Print_ISBN :
978-1-4673-5152-2
Type :
conf
DOI :
10.1109/SITIS.2012.54
Filename :
6395112
Link To Document :
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