Enhanced Sphere Tracing (English)

How to get this document?

Commercial Copyright fee: €14.50 Basic fee: €4.00 Total price: €18.50
Academic Copyright fee: €4.50 Basic fee: €2.00 Total price: €6.50

In this paper we present several performance and quality enhancements to classical sphere tracing: First, we propose a safe, over-relaxation-based method for accelerating sphere tracing. Second, a method for dynamically preventing self-intersections upon converting signed distance bounds enables controlling precision and rendering performance. In addition, we present a method for significantly accelerating the sphere tracing intersection test for convex objects that are enclosed in convex bounding volumes. We also propose a screen-space metric for the retrieval of a good intersection point candidate, in case sphere tracing does not converge thus increasing rendering quality without sacrificing performance. Finally, discontinuity artifacts common in sphere tracing are reduced using a fixed-point iteration algorithm. We demonstrate complex scenes rendered in real-time with our method. The methods presented in this paper have more universal applicability beyond rendering procedurally generated scenes in real-time and can also be combined with path-tracing-based global illumination solutions.

Table of contents conference proceedings

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.

Adaptive Clipping of Splats to Models with Sharp Features
Ivo, Rafael / Ganovelli, Fabio / Vidal, Creto / Scopigno, Roberto | 2014
AR Turn-by-turn Navigation in Small Urban Areas and Information Browsing
Cherchi, Gianmarco / Sorrentino, Fabio / Scateni, Riccardo | 2014
Multi-modal Digitalization of Cultural Heritage Artifacts
Stanco, Filippo / Gallo, Giovanni / Cannata, Giovanna / Lombardo, Marcella | 2014
Stereo-browsing from Calibrated Cameras
Baldacci, Andrea / Ganovelli, Fabio / Corsini, Massimiliano / Scopigno, Roberto | 2014
CHROMAGRAM: A Real-time Chroma Key Application for Mobile Devices
Corda, Fabrizio / Sorrentino, Fabio / Scateni, Riccardo | 2014
Automatic Generation of Synthetic Retinal Fundus Images
Fiorini, S. / Biasi, M. De / Ballerini, L. / Trucco, E. / Ruggeri, A. | 2014
Stateless Level of Detail Lighting for Automotive Visualization
Weber, Christoph / Stamminger, Marc | 2014
TESTIMAGES: a Large-scale Archive for Testing Visual Devices and Basic Image Processing Algorithms
Asuni, Nicola / Giachetti, Andrea | 2014
Enhanced Sphere Tracing
Keinert, Benjamin / Schäfer, Henry / Korndörfer, Johann / Ganse, Urs / Stamminger, Marc | 2014
Practical Line Rasterization for Multi-resolution Textures
Taibo, Javier / Jaspe, Alberto / Seoane, Antonio / Agus, Marco / Hernández, Luis | 2014