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A phenomenological model for throughfall rendering in real‐time
Author(s) -
Weber Y.,
Jolivet V.,
Gilet G.,
Nanko K.,
Ghazanfarpour D.
Publication year - 2016
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/cgf.12945
Subject(s) - rendering (computer graphics) , computer science , computer graphics (images) , real time rendering , interception , opengl , parallel rendering , software rendering , on the fly , tiled rendering , artificial intelligence , computer graphics , visualization , 3d computer graphics , ecology , biology , operating system
This paper aims at rendering interactive visual effects inherent to complex interactions between trees and rain in real‐time in order to increase the realism of natural rainy scenes. Such a complex phenomenon involves a great number of physical processes influenced by various interlinked factors and its rendering represents a thorough challenge in Computer Graphics. We approach this problem by introducing an original method to render drops dripping from leaves after interception of raindrops by foliage. Our method introduces a new hydrological model representing interactions between rain and foliage through a phenomenological approach. Our model reduces the complexity of the phenomenon by representing multiple dripping drops with a new fully functional form evaluated per‐pixel on‐the‐fly and providing improved control over density and physical properties. Furthermore, an efficient real‐time rendering scheme, taking full advantage of latest GPU hardware capabilities, allows the rendering of a large number of dripping drops even for complex scenes.