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High-Frequency Shadows for Real-Time Rendering of Trees

Kevin Boulanger 1 Kadi Bouatouch 2 Sumanta Pattanaik 3 
1 BUNRAKU - Perception, decision and action of real and virtual humans in virtual environments and impact on real environments
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, ENS Cachan - École normale supérieure - Cachan, Inria Rennes – Bretagne Atlantique
2 FRVSense - FRVSense
Abstract : We present a fast and simple method for adding high-frequency shadows into the foliage of trees rendered in real-time. When leaves of a tree project shadows onto other leaves, determining the relationships between cast shadows and the corresponding occluders is a visually difficult task. We present a method based on this assumption to quickly determine shadows cast by leaves onto other leaves. To this end, we simulate the presence of these shadows rather than projecting them exactly. The characteristics of these simulated shadows (movement, parallax, size, softness, and color) evolve realistically when the lighting conditions change. Our method is fast and supports soft shadows.
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Submitted on : Friday, April 17, 2015 - 2:27:43 PM
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Kevin Boulanger, Kadi Bouatouch, Sumanta Pattanaik. High-Frequency Shadows for Real-Time Rendering of Trees . Journal of graphics tools, 2010, 15 (1), pp.1-12. ⟨10.1080/2151237X.2010.10390648⟩. ⟨hal-01143381⟩



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