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Authors: Manuel N. Gamito and Steve C. Maddock

Affiliation: The University of Sheffield, United Kingdom

ISBN: 972-8865-39-2

Keyword(s): Affine arithmetic, implicit surface, progressive refinement, ray casting.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Rendering ; Rendering Algorithms

Abstract: Visualising implicit surfaces with the ray casting method is a slow procedure. The design cycle of a new implicit surface is, therefore, fraught with long latency times as a user must wait for the surface to be rendered before being able to decide what changes should be introduced in the next iteration. In this paper, we present an attempt at reducing the design cycle of an implicit surface modeler by introducing a progressive refinement rendering approach to the visualisation of implicit surfaces. This progressive refinement renderer provides a quick previewing facility. It first displays a low quality estimate of what the final rendering is going to be and, as the computation progresses, increases the quality of this estimate at a steady rate. The progressive refinement algorithm is based on the adaptive subdivision of the viewing frustrum into smaller cells. An estimate for the variation of the implicit function inside each cell is obtained with an affine arithmetic range estimatio n technique. Overall, we show that our progressive refinement approach not only provides the user with visual feedback as the rendering advances but is also capable of completing the image faster than a conventional implicit surface rendering algorithm based on ray casting. (More)

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Paper citation in several formats:
N. Gamito M.; C. Maddock S. and (2006). A PROGRESSIVE REFINEMENT APPROACH FOR THE VISUALISATION OF IMPLICIT SURFACES.In Proceedings of the First International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, ISBN 972-8865-39-2, pages 26-33. DOI: 10.5220/0001350400260033

@conference{grapp06,
author={Manuel {N. Gamito} and Steve {C. Maddock}},
title={A PROGRESSIVE REFINEMENT APPROACH FOR THE VISUALISATION OF IMPLICIT SURFACES},
booktitle={Proceedings of the First International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP,},
year={2006},
pages={26-33},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001350400260033},
isbn={972-8865-39-2},
}

TY - CONF

JO - Proceedings of the First International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP,
TI - A PROGRESSIVE REFINEMENT APPROACH FOR THE VISUALISATION OF IMPLICIT SURFACES
SN - 972-8865-39-2
AU - N. Gamito, M.
AU - C. Maddock, S.
PY - 2006
SP - 26
EP - 33
DO - 10.5220/0001350400260033

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