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3D symbols are categorized under the marker symbol layers known as 3D model marker symbol layers. 3D model marker symbol layers are mainly used to emphasize symbols especially point symbols on map. They can be used to identify locations, routes or transportation utilized in an area symbolized in 3D form. The model for these markers can be derived from either built-in 3D symbols or custom 3D symbols to ArcGIS Pro.
The instructions provided describe two methods that show how to use 3D shapes as marker symbols in the ArcGIS Pro scene view, either by using built-in symbols, or importing custom symbols.
Note: Some layers are displayed as 2D layers in a scene by default. To apply 3D symbology to a layer, ensure the desired point file is moved to the 3D Layers group in the Contents pane. For more information, refer to ArcGIS Pro Web App: Make a 3D scene: Add 3D symbology to 2D layers.
Note: It is also possible to right-click the point layer in the Contents pane > Symbology to open the Symbology pane.
Note: Most of the built-in 3D symbols are turned off by default upon first opening of ArcGIS Pro.
Note: ArcGIS Pro only supports COLLADA (.dae), 3ds Max (.3ds), OpenFlight (.flt), and Wavefront (.obj) models for custom 3D symbols. Users can download these files from websites or create the files in other software.
Note: Ensure the box that lies under the Layers icon is checked to enable viewing of the 3D symbol at the bottom of the Symbology pane. Other settings can be changed as well. For more information, refer to ArcGIS Pro Web Help: Modify symbol layers.