ABSTRACT
ABSTRACT: Three dimensional urban models are used in various scenarios from urban planning over decision support to navigation systems. These tasks not only involve the visualization of these models. Therefore they are mainly managed in specialized geo-management systems to be able to integrate additional information. Textures for these models are normally static real world images that are applied to the associated geometry. This paper will present a concept for procedural textures based on tiles and a parameterized description in order to rebuild the façade structure. This concept includes the integration of the procedural textures in a 3D-SDI, efficient transmission and rendering, utilizing programmable rendering pipeline capabilities and the outline of new data acquisition possibilities that need to be investigated. The flexibility of this procedural approach will also allow defining a level of realism (LoR) for textures in addition to the geometry based LoD specified in the OGC’s CityGML standard. As the aforementioned management systems are mainly based on open standards and interfaces, it needs to be investigated how the presented texture approach fits into these specifications and where extensions would be necessary.
