BUG-000175263 for ArcGIS Pro

Bug ID Number	BUG-000175263
Submitted	March 24, 2025
Last Modified	April 17, 2025
Applies to	ArcGIS Pro
Version found	3.4
Operating System	Windows OS
Operating System Version	N/A
Status	As Designed

Additional Information

This behavior is as designed because scenes in ArcGIS Pro by design do not display the shading on TINs, and the scene can also have illumination properties and shading or shadows toggled separately. TIN rendering in 2D adds shading based on each TIN face based on the illumination properties of the map, resulting in the 'hillshade' appearance, even though it is a 2D map. In 3D, shading can come from many sources, and the lighting can be more complex, including date, time, etc. To display TINs with similar shading in 3D, the TIN must be added to the ground surface and the shading turned on for the surface.

Workaround

In order for the TIN to be 'lit' as it is rendered in 2D, turn on hill shading for the elevation surface and add the TIN to the elevation surface.

Steps:

Right-click the TIN in the 3D view and click Elevation > Add to Ground.
Click the ground surface and check the boxes for 'Shade Relief' and 'Flat Shading for TINS.'