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Introduction to Esri CityEngine
Esri CityEngine is a 3D modeling software that transforms 2D GIS data into 3D city models through a procedural modeling workflow. It allows users to quickly create 3D models of urban environments using real-world 2D data. The software extrudes 2D features like building footprints, roads, and terrain to generate initial 3D geometry which is then refined using procedural rules to add detail before exporting the finished 3D city model. CityEngine models can be shared online and updated directly within a GIS database.
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Introduction to Esri CityEngine
- 1. Introduction to EsriCityEngine
- 2. What is CityEngine? 3D Cities Models Esri CityEngine Transform 2D GIS Data into Smart 3D City Models Design urban layouts in 3D for analysis and review. Model 3D environments for entertainment and simulation. Quickly create 3D models using real-world 2D GIS data.
- 3. What is CityEngine? 3D Cities Models STEP 1 Geodatabase / 2D Information STEP 2 3D Streets, Blocks, and Parcels (import or creation) STEP 3 3D Extrusion, Roof Generation, and Street Furniture STEP 4 Texturing and Façade Creation (details) STEP 5 Finished 3D City Shared on the Web and Updated in the Geodatabase
- 4. Trees Water Bodies Extruded 2D Building Footprints 3DComplex Buildings Terrain / Imagery Streets
- 5. Procedural 3D Modeling Transform2D GIS Data into Smart 3D City Models Base geometry Final 3D model Iterative refinement + + CGA 3D Models Textures + Generated 3D Model 1. 2. 3. Base Geometry Procedural Rules
- 6. File Type SupportInput / Output Files Input File DAE (Collada) DXF (AutoCAD) GDB, Shp (ArcMap) KML, KMZ (Google Earth) OBJ (3d Max, SketchUp) OSM (OpenStreet Map) Terrain Texture 3WS Output File Python KML CityEngine WebScene DAE OBJ Autodesk FBX E-On Software Vue Pixar Renderman GDB
- 7. Top Benefits Benefitsof CityEngine • Improve Understanding 3D is easy for everyone to understand. • Communicate Better 3D makes it easier to articulate ideas. • Solve 3D Problems Some spatial problems can only solved in 3D.
- 8. Saving Time andCosts Rule Based Generation of 3D Geometry Traditional 3D Esri Procedural 3D Number of Iterations Costs
- 9. | World becomes3D with Esri CityEngine |
Editor's Notes
- #5 …. In the past creating a 3D cityscape was an expensive and manual process. And as your city grows and changes, these hand built models are quickly out of date. We see that clients will come to expect a real-time 3D feedback loop –------ 3D modeling to support a charrette style design process We can now rapidly accelerate this modeling process and make use of this 3D content like never before.
- #6 In summary, procedural modeling can be explained in 3 steps. First to bring in your base geometry, either from GIS or CAD…. When using GIS we can take advantage of the shape data to further automate the modeling. Then you apply a rule…. This is the combination of existing 3D models and textures together with a simple scripted framework called CGA – Computer Generated Architecture These generated models can get iteratively more complex… from a basic form to something that better resembles the Parthenon in complexity.
- #9 So the big question…. Is efficiency critical to your 3D pipeline? When you compare Esri’s procedural 3D to traditional modeling.. in 3DS or Sketchup You can see that if many iterations are needed, its much more efficient to use a rule based …parametric modeling software. Particularly with large models requiring high detail. With traditional 3D modeling its pretty much equal output to equal input. Ultimately its about saving costs and to do some of the work we have seen here today, you might need a fairly large team working in 3DS to accomplish some of the same tasks..