CityEngine

ArcGIS CityEngine is a commercial 3D modeling program. Developed by Esri R&D Center Zurich (formerly Procedural Inc.), it specializes in the generation of 3D urban environments to support the creation of detailed large-scale 3D city models. Unlike traditional 3D modeling methodology, which uses computer-aided design (CAD) tools and techniques, CityEngine takes a procedural modeling approach which shapes generation via a rules-based system. Due to its integration with the wider ArcGIS platform, CityEngine can also be used with geographic information system (GIS) datasets. CityEngine can be used for urban planning and architecture, graphics visualization, game development, entertainment, and archeology. CityEngine can be used to visualize the building information modeling (BIM) data of buildings in a larger urban context, making for more realistic construction projects.

ArcGIS CityEngine is a commercial 3D modeling program. Developed by Esri R&D Center Zurich (formerly Procedural Inc.), it specializes in the generation of 3D urban environments to support the creation of detailed large-scale 3D city models. Unlike traditional 3D modeling methodology, which uses computer-aided design (CAD) tools and techniques, CityEngine takes a procedural modeling approach which shapes generation via a rules-based system. Due to its integration with the wider ArcGIS platform, CityEngine can also be used with geographic information system (GIS) datasets. CityEngine can be used for urban planning and architecture, graphics visualization, game development, entertainment, and archeology. CityEngine can be used to visualize the building information modeling (BIM) data of buildings in a larger urban context, making for more realistic construction projects. ==History and releases== ===Releases=== ==Features== CGA (computer generated architecture) parametric modeling rules to control mass, geometry assets, proportions, or texturing of buildings or streets on a citywide scale Select a target location and import geo-referenced satellite imagery and 3D terrain of the location to more quickly build accurate urban environments through OpenStreetMap integration Interactively control specific street or building parameters, such as height or age Import/export geo-spatial/vector data with industry-standard formats such as Esri Shapefile, File Geodatabase, and OpenStreetMap, as well as file formats for WebGL, KMZ, Collada, Autodesk FBX, Autodesk Maya, 3DS, Wavefront OBJ, RenderMan RIB, Alembic, e-on software's Vue, Universal Scene Description USD, Khronos Group GLTF, Unreal Engine, and Unreal Datasmith Script and generate rules-based reports to show socioeconomic figures (e.g., Gross Floor Area (GFA) and Floor Area Ratio (FAR)) to analyze their urban design proposals. VR viewing of modeled environments with Samsung Gear VR Use a variety of materials through the Esri materials library ==Procedural modeling== ArcGIS CityEngine uses a procedural modeling approach to automatically generate models through a predefined rule set. The rules are defined through a CGA shape grammar system, enabling the creation of complex parametric models. Users can change or add the shape grammar as needed. Urban environments can be modeled within CityEngine by starting with creating a street network (either from the street drawing tool or with data imported from map data). Then, lots may be subdivided as many times as specified, resulting in a map of multiple lots and streets. CityEngine can then be instructed to start generating the buildings using defined procedural modeling rules. At this point, the city model can be re-designed and adjusted by changing the parameters or the shape grammar. ===Geodesign=== Though CityEngine is not an analytical tool like GIS, discussions about geodesign often mention the use of ArcGIS CityEngine. As it can be used to enhance 3D shape generation in ArcGIS, ArcGIS CityEngine is a critical product to improve the applicability of geodesign by using geospatial information to design or analyze a city. ==Publications== ACM Siggraph 2001: Procedural Modeling of Cities - Yoav Parish and Pascal Mueller ACM Siggraph 2006: [ftp://oenone-v06.ee.ethz.ch/publications/proceedings/eth_biwi_00399.pdf Procedural Modeling of Buildings] - Pascal Mueller, Peter Wonka, Simon Haegler, Andreas Ulmer and Luc Van Gool ACM Siggraph 2007: Image-based Procedural Modeling of Facades - Pascal Mueller, Gang Zeng, Peter Wonka and Luc Van Gool ACM Siggraph 2008: Interactive Procedural Street Modeling - Guoning Chen, Gregory Esch, Peter Wonka, Pascal Mueller and Eugene Zhang Eurographics 2009: Interactive Geometric Simulation of 4D Cities - Basil Weber, Pascal Mueller, Peter Wonka and Markus Gross Eurographics Symposium VAST 2006: Procedural 3D Reconstruction of Puuc Buildings in Xkipché - Pascal Mueller, Tijl Vereenooghe, Peter Wonka, Iken Paap and Luc Van Gool Eurographics Symposium VAST 2007: Populating Ancient Pompeii with Crowds of Virtual Romans - Jonathan Maïm, Simon Haegler, Barbara Yersin, Pascal Mueller, Daniel Thalmann and Luc Van Gool ==See also== Geodesign Procedural modeling ==References== ==External links==

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