Interactive Dynamic Volume Illumination with Refraction and Caustics
Abstract
In recent years, significant progress has been made in developing high-quality interactive methods for realistic volume illumination. However, refraction - despite being an important aspect of light propagation in participating media - has so far only received little attention. In this thesis, we present a novel approach for refractive volume illumination including caustics capable of interactive frame rates. By interleaving light and viewing ray propagation, our technique avoids memory-intensive storage of illumination information and does not require any precomputation. Propagation of refracted illumination is realized by employing a Semi-Lagrangian backward integration scheme, inspired by texture advection from the field of texture-based flow visualization. It is fully dynamic and all parameters such as light position and transfer function can be modified interactively without a performance penalty.
J. G. Magnus, "Interactive Dynamic Volume Illumination with Refraction and Caustics," , 2017.
[BibTeX]
In recent years, significant progress has been made in developing high-quality interactive methods for realistic volume illumination. However, refraction - despite being an important aspect of light propagation in participating media - has so far only received little attention. In this thesis, we present a novel approach for refractive volume illumination including caustics capable of interactive frame rates. By interleaving light and viewing ray propagation, our technique avoids memory-intensive storage of illumination information and does not require any precomputation. Propagation of refracted illumination is realized by employing a Semi-Lagrangian backward integration scheme, inspired by texture advection from the field of texture-based flow visualization. It is fully dynamic and all parameters such as light position and transfer function can be modified interactively without a performance penalty.
@MASTERTHESIS {jens2017thesis,
author = "Jens Gaasemyr Magnus",
title = "Interactive Dynamic Volume Illumination with Refraction and Caustics",
school = "University of Bergen",
year = "2017",
abstract = "In recent years, significant progress has been made in developing high-quality interactive methods for realistic volume illumination. However, refraction - despite being an important aspect of light propagation in participating media - has so far only received little attention. In this thesis, we present a novel approach for refractive volume illumination including caustics capable of interactive frame rates. By interleaving light and viewing ray propagation, our technique avoids memory-intensive storage of illumination information and does not require any precomputation. Propagation of refracted illumination is realized by employing a Semi-Lagrangian backward integration scheme, inspired by texture advection from the field of texture-based flow visualization. It is fully dynamic and all parameters such as light position and transfer function can be modified interactively without a performance penalty.",
images = "images/Jens.png",
thumbnails = "images/Jens.png"
}