"Generate Smooth Normals" does not work well with tilesets that have built-in skirts, such as Google Photorealistic 3DTiles. The smoothing causes every tile to have billowed edges in some lighting conditions (see screenshot).
Tile edge normals should remain sharp and not be smoothed with the surrounding skirt. Building corners should also not be smoothed in most cases.
The recommended default for this option would be an angle close to 90 degrees (70 or 80). Testing should reveal the ideal setting. We want visual quality to improve where tiles with skirts are mostly fixed, but treetops and other rounded objects continue to receive averaged normals.
"Generate Smooth Normals" does not work well with tilesets that have built-in skirts, such as Google Photorealistic 3DTiles. The smoothing causes every tile to have billowed edges in some lighting conditions (see screenshot). Tile edge normals should remain sharp and not be smoothed with the surrounding skirt. Building corners should also not be smoothed in most cases.
The recommended default for this option would be an angle close to 90 degrees (70 or 80). Testing should reveal the ideal setting. We want visual quality to improve where tiles with skirts are mostly fixed, but treetops and other rounded objects continue to receive averaged normals.