CesiumGS
Google Photorealistic 3D Tiles Polygon Classification
Hello,
We are currently developing a boundary system for our iTwin Viewer, which involves rendering a polygon that outlines the boundary of a tileset, as illustrated below:
However, we ran into an issue when enabling Google Photorealistic 3D Tiles. As shown in the following example, the Google tiles overlay and obscure the boundary polygon:
While setting the polygon’s ClassificationType to BOTH or 3D_TILE allows it to appear on top of the Google tiles—similar to the behavior demonstrated in this Sandcastle example—this approach causes the polygon to classify all 3D tiles, not just the Google Photorealistic 3D Tiles, which is not what we want. Is there anyway for us to render the polygon on top of Google Photorealistic 3D Tiles while not affecting the other 3d tilesets?
Just to have the connection: This is also discussed in the forum at https://community.cesium.com/t/google-photorealistic-3d-tiles-polygon-classification/41010 (with the first response containing a few possible approaches, but further details can be discussed there).
