Illumination‐driven Mesh Reduction for Accelerating Light Transport Simulations (English)

In: Computer Graphics Forum   ;  34 ,  4  ;  165-174  ;  2015

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Progressive light transport simulations aspire a physically‐based, consistent rendering to obtain visually appealing illumination effects, depth and realism. Thereby, the handling of large scenes is a difficult problem, as in typical scene subdivision approaches the parallel processing requires frequent synchronization due to the bouncing of light throughout the scene. In practice, however, only few object parts noticeably contribute to the radiance observable in the image, whereas large areas play only a minor role. In fact, a mesh simplification of the latter can go unnoticed by the human eye. This particular importance to the visible radiance in the image calls for an output‐sensitive mesh reduction that allows to render originally out‐of‐core scenes on a single machine without swapping of memory. Thus, in this paper, we present a preprocessing step that reduces the scene size under the constraint of radiance preservation with focus on high‐frequency effects such as caustics. For this, we perform a small number of preliminary light transport simulation iterations. Thereby, we identify mesh parts that contribute significantly to the visible radiance in the scene, and which we thus preserve during mesh reduction.

Table of contents – Volume 34, Issue 4

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The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.

1
Stochastic Soft Shadow Mapping
Liktor, G. / Spassov, S. / Mückl, G. / Dachsbacher, C. | 2015
13
Portal‐Masked Environment Map Sampling
Bitterli, Benedikt / Novák, Jan / Jarosz, Wojciech | 2015
21
Extracting Microfacet‐based BRDF Parameters from Arbitrary Materials with Power Iterations
Dupuy, Jonathan / Heitz, Eric / Iehl, Jean‐Claude / Poulin, Pierre / Ostromoukhov, Victor | 2015
31
Physically Meaningful Rendering using Tristimulus Colours
Meng, Johannes / Simon, Florian / Hanika, Johannes / Dachsbacher, Carsten | 2015
41
Consistent Scene Editing by Progressive Difference Images
Günther, Tobias / Grosch, Thorsten | 2015
53
Unifying Color and Texture Transfer for Predictive Appearance Manipulation
Okura, Fumio / Vanhoey, Kenneth / Bousseau, Adrien / Efros, Alexei A. / Drettakis, George | 2015
65
Improved Half Vector Space Light Transport
Hanika, Johannes / Kaplanyan, Anton / Dachsbacher, Carsten | 2015
75
Probabilistic Connections for Bidirectional Path Tracing
Popov, Stefan / Ramamoorthi, Ravi / Durand, Fredo / Drettakis, George | 2015
87
Manifold Next Event Estimation
Hanika, Johannes / Droske, Marc / Fascione, Luca | 2015
99
Smooth Loops from Unconstrained Video
Sevilla‐Lara, L. / Wulff, J. / Sunkavalli, K. / Shechtman, E. | 2015
109
Radiometric Transfer: Example‐based Radiometric Linearization of Photographs
Li, Han / Peers, Pieter | 2015
119
Motion Aware Exposure Bracketing for HDR Video
Gryaditskaya, Yulia / Pouli, Tania / Reinhard, Erik / Myszkowski, Karol / Seidel, Hans‐Peter | 2015
131
Path‐space Motion Estimation and Decomposition for Robust Animation Filtering
Zimmer, Henning / Rousselle, Fabrice / Jakob, Wenzel / Wang, Oliver / Adler, David / Jarosz, Wojciech / Sorkine‐Hornung, Olga / Sorkine‐Hornung, Alexander | 2015
143
Wavelet Point‐Based Global Illumination
Wang, Beibei / Meng, Xiangxu / Boubekeur, Tamy | 2015
155
Modeling Luminance Perception at Absolute Threshold
Kellnhofer, Petr / Ritschel, Tobias / Myszkowski, Karol / Eisemann, Elmar / Seidel, Hans‐Peter | 2015
165
Illumination‐driven Mesh Reduction for Accelerating Light Transport Simulations
Reich, Andreas / Günther, Tobias / Grosch, Thorsten | 2015
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Frontmatter
| 2015
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