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Adapting Precomputed Radiance Transfer to Real-time Spectral Rendering [article]

Karsten Schwenk, Tobias Franke, Timm Drevensek, Arjan Kuijper, Ulrich Bockholt, Dieter W. Fellner
2010 Eurographics State of the Art Reports  
We present a variant of the precomputed radiance transfer algorithm that is tailored towards real-time spectral rendering on modern graphics hardware.  ...  We present a variant of the precomputed radiance transfer algorithm that is tailored towards real-time spectral rendering on modern graphics hardware.  ...  The current implementation has two restrictions that we want to address with future work. Firstly, we would like to include multiple light bounces to maintain accuracy during interreflections.  ... 
doi:10.2312/egsh.20101045 fatcat:zmn4x556nrcwldbm72mdjwozqa

Consistent interactive augmentation of live camera images with correct near-field illumination

Thorsten Grosch, Tobias Eble, Stefan Mueller
2007 Proceedings of the 2007 ACM symposium on Virtual reality software and technology - VRST '07  
To accomplish this, we develop a special dynamic form of the irradiance volume for real-time updates of indirect light in the room and combine this with importance sampling and shadow maps for light from  ...  Therefore, the focus of our work is a real-time description of both near -and far-field illumination for interactive movement of virtual objects in the camera image of a real room.  ...  For a correct nearfield description we developed a dynamic version of the irradiance volume which automatically adapts to the incoming far-field illumination in real-time.  ... 
doi:10.1145/1315184.1315207 dblp:conf/vrst/GroschEM07 fatcat:hd4hyedknfaxvnhvqc3m4byzqu

All-frequency relighting of glossy objects

Rui Wang, John Tran, David Luebke
2006 ACM Transactions on Graphics  
Our system is based on precomputed radiance transfer and separable BRDF approximation.  ...  To render at run time, we dynamically sample the lighting to produce a light vector, also represented in a wavelet basis.  ...  ACKNOWLEDGEMENTS The authors would like to thank Paul Debevec for his light probe images and NVIDIA for kindly providing the latest graphics hardware.  ... 
doi:10.1145/1138450.1138456 fatcat:f3z65guzf5f2nc4brrvsqfate4

Physically-Based Realistic Fire Rendering [article]

Vincent Pegoraro, Steven G. Parker
2006 Eurographics Workshop on Natural Phenomena  
Combined with a model of the refractive process, and with tone-mapping techniques simulating the visual adaptation of a human observer, we are able to generate highly realistic renderings of various types  ...  Accurately rendering fires is a challenging problem due to the various subtle ways in which the electromagnetic waves interact with this complex participating medium.  ...  The authors would like to thank James Bigler, Stanislav Borodai, Eric Eddings, Gautham Krishnamoorthy, Seshadri Kumar, Alexander Santamaria, Jennifer Spinti and Charles Wight for their helpful comments  ... 
doi:10.2312/nph/nph06/051-059 fatcat:ttew7t7xfvbvjhgrteegtvbtgm

Interactive rendering of acquired materials on dynamic geometry using bandwidth prediction

Mahdi M. Bagher, Cyril Soler, Kartic Subr, Laurent Belcour, Nicolas Holzschuch
2012 Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games - I3D '12  
Our technique makes it possible to interactively render acquired materials while editing the geometry (material: red-metallic-paint).  ...  We then exploit this bandwidth information to adaptively sample for reconstruction and integration.  ...  The latter approach typically requires the precomputation of radiance transfer (including visibility), thus preventing geometry editing .  ... 
doi:10.1145/2159616.2159637 dblp:conf/si3d/BagherSSBH12 fatcat:a4thckuhn5betd2vk66sp2a5be

Sound propagation in 3D spaces using computer graphics techniques

Panagiotis Charalampous, Despina Michael
2014 2014 International Conference on Virtual Systems & Multimedia (VSMM)  
As a result, sound rendering in a 3D virtual environment can benefit from methods developed for graphics rendering and vice versa.  ...  In this review, we provide an overview of methods used for sound rendering that share concepts and techniques with graphics rendering.  ...  Antani et al. precompute compact acoustic transfer operators using acoustic radiance transfer [62] VII.  ... 
doi:10.1109/vsmm.2014.7136674 dblp:conf/vsmm/CharalampousM14 fatcat:7gdxmsocirhbvkh5ub2t2x5qai

Realistic Water Volumes in Real-Time [article]

Lionel Baboud, Xavier Décoret
2006 Eurographics Workshop on Natural Phenomena  
We present a real-time technique to render realistic water volumes. Water volumes are represented as the space enclosed between a ground heightfield and an animable water surface heightfield.  ...  It runs at high framerates by exploiting the power of the latest graphic cards, and could be used in real-time applications like video games, or interactive simulation.  ...  Indeed, the increasing functionalities and power offered by graphics hardware allow the adaptation of well-known off-line techniques to real-time applications.  ... 
doi:10.2312/nph/nph06/025-032 fatcat:y6dwxhkawfbq3p3sy5wrla22sa

Simulating the Daylight Performance of Complex Fenestration Systems Using Bidirectional Scattering Distribution Functions within Radiance

G. Ward, R. Mistrick, E. S. Lee, A. McNeil, J. Jonsson
2011 LEUKOS The Journal of the Illuminating Engineering Society of North America  
Two tools within Radiance enable a) efficient annual performance evaluations of CFS, and b) accurate renderings of CFS despite the loss of spatial resolution associated with low-resolution BSDF datasets  ...  We describe two methods which rely on bidirectional scattering distribution functions (BSDFs) to model the daylighting performance of complex fenestration systems (CFS), enabling greater flexibility and  ...  We could use these candlepower distributions to render an image directly, but as this is also part of our time-step calculation, it would be much better to precompute this transfer function as well.  ... 
doi:10.1080/15502724.2011.10732150 fatcat:4xl3iov52bgyxj6lmazraglaxi

Local and Global Illumination in the Volume Rendering Integral

Nelson Max, Min Chen, Marc Herbstritt
2010 Dagstuhl Publications  
of spectral power distribution.  ...  We review the developments on spectral volume rendering, in which visible light are considered as a form of electromagnetic radiation, optical models are implemented in conjunction with representations  ...  The authors wish to thank Dr. Martin Kraus, Universität Stuttgart, for his comments and suggestions in the early stage of preparing this survey.  ... 
doi:10.4230/dfu.sciviz.2010.259 dblp:conf/dagstuhl/MaxC10 fatcat:nynpx4sfvnfwpa6rh3nqcjganm

The State of the Art in Interactive Global Illumination

Tobias Ritschel, Carsten Dachsbacher, Thorsten Grosch, Jan Kautz
2012 Computer graphics forum (Print)  
Additionally, the theoretical background and attempts to classify the broad field of methods are described.  ...  The strengths and weaknesses of different approaches, when applied to the different visual phenomena, arising from light interaction are compared and discussed.  ...  Acknowledgements We would like to thank Matthias Holländer and Oliver Klehm for proofreading and the anonymous reviewers for their detailed and helpful comments.  ... 
doi:10.1111/j.1467-8659.2012.02093.x fatcat:aawhbmb3gzachegcco7zbpbj6a

Photorealistic rendering of mixed reality scenes

Joel Kronander, Francesco Banterle, Andrew Gardner, Ehsan Miandji, Jonas Unger
2015 Computer graphics forum (Print)  
Photo-realistic rendering of virtual objects into real scenes is one of the most important research problems in computer graphics.  ...  Methods for capture and rendering of mixed reality scenes are driven by a large number of applications, ranging from augmented reality to visual effects and product visualization.  ...  Precomputed Radiance Transfer An efficient method for real-time and interactive rendering with environment maps is Precomputed Radiance Transfer (PRT) [SKS02, Ram09] .  ... 
doi:10.1111/cgf.12591 fatcat:7jbq4xjkkjhbvd6n4a5af43jdi

A wavelet-based framework for acquired radiometric quantity representation and accurate physical rendering

Luc Claustres, Mathias Paulin, Yannick Boucher
2006 The Visual Computer  
Then, we explain how the representation is useful to perform spectral rendering.  ...  We also show how complex light emission from real luminaires can be efficiently sampled to emit photons with our numerical model.  ...  Acknowledgements We would like to sincerely thank Fabien Lavignotte for its contribution to the development of our Photon Mapping algorithm.  ... 
doi:10.1007/s00371-006-0001-y fatcat:4zhwi3ol75a5leg7p7qa7e6jbm

DISCO

Michael Goesele, Hendrik P. A. Lensch, Jochen Lang, Christian Fuchs, Hans-Peter Seidel
2004 ACM SIGGRAPH 2004 Papers on - SIGGRAPH '04  
Missing values are consistently interpolated resulting in measurement-based, complete and accurate representations of real translucent objects which can be rendered with various algorithms.  ...  This paper presents the first method to acquire this transport behavior for arbitrary inhomogeneous objects.  ...  Acknowledgements We would like to thank the anonymous reviewers for their valuable comments. Thanks also to Heiko Wanning for 3D scanning and Kristina Scherbaum for some illustrations.  ... 
doi:10.1145/1186562.1015807 fatcat:loiqbi27rbazxj7bjdh6c746du

DISCO

Michael Goesele, Hendrik P. A. Lensch, Jochen Lang, Christian Fuchs, Hans-Peter Seidel
2004 ACM Transactions on Graphics  
Missing values are consistently interpolated resulting in measurement-based, complete and accurate representations of real translucent objects which can be rendered with various algorithms.  ...  This paper presents the first method to acquire this transport behavior for arbitrary inhomogeneous objects.  ...  Acknowledgements We would like to thank the anonymous reviewers for their valuable comments. Thanks also to Heiko Wanning for 3D scanning and Kristina Scherbaum for some illustrations.  ... 
doi:10.1145/1015706.1015807 fatcat:dft75gpc6bbttjyr56q33zmble

State-of-the-art review of solar design tools and methods for assessing daylighting and solar potential for building-integrated photovoltaics

Nebojsa Jakica
2018 Renewable & Sustainable Energy Reviews  
Furthermore, a capability of solar design methodologies and tools to accurately and time efficiently simulate light phenomena can greatly influence performance results and design decisions.  ...  This paper was carried out within the framework of IEA-PVPS Task 15 -BIPV and it aims to facilitate this decision for all parties involved in solar design process.  ...  The approach uses radiance regression function to train the neural network in precomputation phase to allow real-time rendering of the indirect illumination of the whole scene under different lighting  ... 
doi:10.1016/j.rser.2017.05.080 fatcat:ooq6ok47lrfi3omnxzgvzutfgm
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