TU Darmstadt / ULB / TUbiblio

Simplified Definition of Parameter Spaces of a Procedural Model using Sketch-based Interaction

Fellner, Dieter W. and Kuijper, Arjan and Getto, Roman and Merz, Johannes (2018):
Simplified Definition of Parameter Spaces of a Procedural Model using Sketch-based Interaction.
In: Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, Setúbal, Portugal, SciTePress, In: International Conference on Computer Graphics Theory and Applications (GRAPP), Funchal, Madeira, Portugal, 2018, ISBN 978-989-758-287-5,
DOI: 10.5220/0006613002230231,
[Online-Edition: https://doi.org/10.5220/0006613002230231],
[Conference or Workshop Item]

Abstract

This paper presents a novel technique to intuitively insert meta-parameters into a procedural model with the help of sketch-based interaction. The procedural model is represented in a GML (Generative Modeling Language) representation, which is a script language that focuses on the description of three-dimensional models. A GML model consists of a sequence of procedural modeling commands, for example extrusions. These are called with a set of local offset positions, which can be converted to global space and anchored in the surface mesh by finding reference vertices on the mesh. The system uses a deformation technique to deform the surface of the model. During the deformation, the reference vertices provide the global offset positions, whose path can be approximated by a B-spline. Exchanging the initial values of the commands by this B-spline, defines a continuous parameter space of the meta-parameter. The deformation process is supported by a mesh segmentation to create pre-defined deformation targets. Using sketch-based methods, these can be adapted to the user's needs. The results show that the system closely imitates the deformation with the help of the modeling commands. Furthermore, the system was evaluated to be intuitive and easy to use.

Item Type: Conference or Workshop Item
Erschienen: 2018
Creators: Fellner, Dieter W. and Kuijper, Arjan and Getto, Roman and Merz, Johannes
Title: Simplified Definition of Parameter Spaces of a Procedural Model using Sketch-based Interaction
Language: English
Abstract:

This paper presents a novel technique to intuitively insert meta-parameters into a procedural model with the help of sketch-based interaction. The procedural model is represented in a GML (Generative Modeling Language) representation, which is a script language that focuses on the description of three-dimensional models. A GML model consists of a sequence of procedural modeling commands, for example extrusions. These are called with a set of local offset positions, which can be converted to global space and anchored in the surface mesh by finding reference vertices on the mesh. The system uses a deformation technique to deform the surface of the model. During the deformation, the reference vertices provide the global offset positions, whose path can be approximated by a B-spline. Exchanging the initial values of the commands by this B-spline, defines a continuous parameter space of the meta-parameter. The deformation process is supported by a mesh segmentation to create pre-defined deformation targets. Using sketch-based methods, these can be adapted to the user's needs. The results show that the system closely imitates the deformation with the help of the modeling commands. Furthermore, the system was evaluated to be intuitive and easy to use.

Title of Book: Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications
Place of Publication: Setúbal, Portugal
Publisher: SciTePress
ISBN: 978-989-758-287-5
Uncontrolled Keywords: Sketch based modeling, Sketching, 3D Modeling, Parameter ranges, Parametric modeling, Procedural modeling
Divisions: 20 Department of Computer Science
20 Department of Computer Science > Interactive Graphics Systems
20 Department of Computer Science > Mathematical and Applied Visual Computing
Event Title: International Conference on Computer Graphics Theory and Applications (GRAPP)
Event Location: Funchal, Madeira, Portugal
Event Dates: 2018
Date Deposited: 01 Jul 2019 08:48
DOI: 10.5220/0006613002230231
Official URL: https://doi.org/10.5220/0006613002230231
Export:
Suche nach Titel in: TUfind oder in Google

Optionen (nur für Redakteure)

View Item View Item