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Volumes d'ombre en rendu temps réel : Complexité géométrique et stratégie de partitionnement

Abstract : Shadows are a fundamental visual effect for computer generated images. They provide essential spatial hints allowing us to correctly perceive objects positions in the scene. Despite its importance, computing pixel accurate shadows in real-time is a challenging problem in Computer Graphics. Shadow Maps are still the favored solution due to their high efficiency, but they can't always provide pixel accurate results. Shadow Volumes are slower than Shadow Maps but always garantee pixel accurate shadows. While recent works significantly improved their performance, they remain sensitive to scalability, which limits their application scope. In this thesis, we propose a new algorithm based on Shadow Volumes that remains fast even on very large scenes. Furthermore, we introduce a new partitioning strategy that is yet unexplored in Computer Graphics : the metric tree.
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Submitted on : Wednesday, December 18, 2019 - 4:03:09 PM
Last modification on : Thursday, September 8, 2022 - 3:52:48 AM
Long-term archiving on: : Thursday, March 19, 2020 - 10:06:50 PM


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  • HAL Id : tel-02418240, version 1



François Deves. Volumes d'ombre en rendu temps réel : Complexité géométrique et stratégie de partitionnement. Synthèse d'image et réalité virtuelle [cs.GR]. Université de Limoges, 2019. Français. ⟨NNT : 2019LIMO0066⟩. ⟨tel-02418240⟩



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