Authors:
Matthias Trapp
;
Frank Schlegel
;
Sebastian Pasewaldt
and
Jürgen Döllner
Affiliation:
Hasso Plattner Institute, University of Potsdam and Germany
Keyword(s):
3D Geovirtual Environments, Procedural Texturing, Thematic Data, Real-time Rendering.
Related
Ontology
Subjects/Areas/Topics:
Abstract Data Visualization
;
Computer Vision, Visualization and Computer Graphics
;
Gpu-Based Visualization
;
Spatial Data Visualization
;
Virtual Environments and Data Visualization
;
Visual Representation and Interaction
Abstract:
3D geovirtual environments, such as virtual 3D city and landscape models, can be used as scenery for visualizing thematic data. which can be communicated using suitable color mappings or hatch patterns. For rendering purposes, these hatches patterns can be represented as image-based or procedural textures. The resulting quality of image-based textures, and thus the effective communication of the respective thematic data, is subject to resolution and filtering artifacts. In contrast to thereto, procedural textures are not limited with respect to resolution and can be filtered adaptively to achieve high visual quality. However, challenges in parametrization and design often hinders their application. To counterbalance these drawbacks, this paper presents an interactive rendering technique that facilitates the application and design of procedural hatch patterns for the mapping of thematic data to 3D geovirtual environments.