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Real-Time Molecular Visualization Supporting Diffuse Interreflections and Ambient Occlusion

Robin Skanberg, Pere-Pau Vazquez, Victor Guallar, Timo Ropinski
2016 IEEE Transactions on Visualization and Computer Graphics  
Index Terms-Molecular visualization, diffuse interreflections, ambient occlusion.  ...  a) Time step 1 (b) Time step 2 (c) Time step 3 Fig. 1. By deriving analytic expressions, we can enhance molecular visualizations and realize interreflections in real-time.  ...  This research is partially supported by TIN2014-52211-C2-1-R from the Spanish Government.  ... 
doi:10.1109/tvcg.2015.2467293 pmid:26390480 fatcat:2emsbfqffveitig47elfbjlsoq

A General Illumination Model for Molecular Visualization

P. Hermosilla, P. Vázquez, A. Vinacua, T. Ropinski
2018 Computer graphics forum (Print)  
The proposed model can be further evaluated in real-time, as it employs an analytical solution to simulate diffuse light interactions between objects.  ...  The system uses a regression analysis over a strategically sampled set of spatial configurations to create a set of equations that can be evaluated in real time to shade molecular models based on cylinders  ...  TIN2014-52211-C2-840 1-R and TIN2017-88515-C2-1-R.  ... 
doi:10.1111/cgf.13426 fatcat:gzmwrmjdqvcqjf7k6z6nonr574

Lightness Constancy in Surface Visualization

Danielle Albers Szafir, Alper Sarikaya, Michael Gleicher
2016 IEEE Transactions on Visualization and Computer Graphics  
We report a series of crowdsourced and laboratory studies that confirm the existence of lightness constancy effects for molecular surface visualizations using ambient occlusion.  ...  Color is a common channel for displaying data in surface visualization, but is affected by the shadows and shading used to convey surface depth and shape.  ...  This work was supported in part by NSF awards IIS-1162037, CMMI-0941013 and NIH award 5R01AI077376-07.  ... 
doi:10.1109/tvcg.2015.2500240 pmid:26584495 pmcid:PMC4982670 fatcat:rbrlilkbkfd5nccw7qac3uq3ne

Ambient Occlusion and Edge Cueing for Enhancing Real Time Molecular Visualization

Marco Tarini, Paolo Cignoni, Claudio Montani
2006 IEEE Transactions on Visualization and Computer Graphics  
The proposed approach includes an innovative technique for efficient computation and storage of ambient occlusion terms, a small set of GPU accelerated procedural impostors for space-fill and ball-and-stick  ...  The paper presents a set of combined techniques to enhance the real-time visualization of simple or complex molecules (up to order of 10 6 atoms) space fill mode.  ...  Zoppè for having introduced us to the field of Molecular Visualization.  ... 
doi:10.1109/tvcg.2006.115 pmid:17080857 fatcat:bk4toxvfeje3xgsjw3wuxiie6e

Physics-Based Visual Characterization of Molecular Interaction Forces

Pedro Hermosilla, Jorge Estrada, Victor Guallar, Timo Ropinski, Alvar Vinacua, Pere-Pau Vazquez
2017 IEEE Transactions on Visualization and Computer Graphics  
We put emphasis on mapping molecular docking paths obtained from Molecular Dynamics or Monte Carlo simulations, and provide time-dependent visualizations for different energy components and particle resolutions  ...  During the visual analysis, energies are computed and depicted on-the-fly to support interactive hypothesis testing (left), and residues can be filtered based on energy and distance to obtain a more focused  ...  ACKNOWLEDGMENTS This project has been supported by TIN2014-52211-C2-1-R by the Spanish Ministerio de Economa y Competitividad with EU FEDER funds.  ... 
doi:10.1109/tvcg.2016.2598825 pmid:27875187 fatcat:ijbgcfy7qraxxhiwuexxlvmwpa

Recent Advances in Facial Appearance Capture

Oliver Klehm, Fabrice Rousselle, Marios Papas, Derek Bradley, Christophe Hery, Bernd Bickel, Wojciech Jarosz, Thabo Beeler
2015 Computer graphics forum (Print)  
design of virtual characters in video games and films.  ...  "Image-based methods" try to exhaustively capture the exact face appearance under different lighting and viewing conditions, and then render the face through weighted image combinations.  ...  [JKK * 11] consider interactive virtual characters, including behavior control, real-time animation, and real-time rendering. Ward et al.  ... 
doi:10.1111/cgf.12594 fatcat:7pdbdx3tibevdhg6bbfnvvtnpe

Panoramic Camera [chapter]

2014 Computer Vision  
Gibson's "the structure of ambient light" and Leonardo da Vinci's "visual pyramid."  ...  The diffuse component Here, I a ; I d , and I s are parameters to indicate the illumination power for the ambient, diffuse, and specular components. k a ; k d , and k s are scalars that determine the  ...  The data matrix Q X can be decomposed by SVD as where S is the matrix of left singular vectors, V is the matrix of right singular vectors, and is the diagonal matrix of singular values.  ... 
doi:10.1007/978-0-387-31439-6_100157 fatcat:ar7ieiblvzeovnmn45w2olt43y

Using Image Quality Assessment to Test Rendering Algorithms

Julian Amann, Bastian Weber, Charles Albert Wüthrich
2013 International Conference in Central Europe on Computer Graphics and Visualization  
This project is supported by the German Research Foundation (DFG) under contract numbers SFB/TR-8 and TE 632/1-2. The sink model is courtesy of  ...  We also thank NVIDIA ARC GmbH for supporting this work. ACKNOWLEDGMENTS This study is supported by TUBITAK EEEAG under grant number 112E032.  ...  in real time.  ... 
dblp:conf/wscg/AmannWW13 fatcat:wpubb4ubb5bdlg4265n32u3y6y

Artistic Path Space Editing of Physically Based Light Transport

Thorsten-Walther Schmidt
Diana Kheil for being around and helpful in general. And especially those of the very early days: Jan Novák, Thomas Engelhardt, Gábor Liktor and Tim Reiner.  ...  Various friends and acquaintances, for offering ample distraction from writing this thesis. And my family, for encouraging me to finish it after all.  ...  Indeed, even scientific visualization, which has traditionally been using so-called non-photorealistic rendering, is importing ideas from this domain, e.g., ambient occlusion for molecular visualization  ... 
doi:10.5445/ir/1000081513 fatcat:luk42fb4x5gibjrshl3niilxti

Application of the radiosity approach to the radiation balance in complex terrain

Nora Helbig
In order to reduce the number of shootings from the same patch and to account for interreflections of patches that do not receive radiosity within the first iteration steps, an ambient correction term  ...  Thereafter an occlusion test for partial or complete occlusion was performed for the remaining surfaces.  ...  A very special thank is for my parents and my sister who always supported me and believed in me!  ... 
doi:10.5167/uzh-30798 fatcat:mxlentjcwbgyrm6s2cthtacbje