How to use summary shading angle analysis

Use this guide when you need to check obstruction angle rather than direct-sunlight duration or daylight factor.

TODO screenshot: show the Themes popover with Summary Shading Angle enabled, with an obstructed facade visible and the relevant report context highlighted.

Prepare the scene

1. Import the site boundary and surroundings.
2. Make sure the geometry that should block the sky is marked as Daylight Obstruction.
3. Set North offset and Summary shading angle in Properties before you review the result.

Turn on summary shading angle mode

1. Open Themes.
2. Enable Summary Shading Angle.
3. Wait for the daylighting update to finish.

Review the result

1. Focus on edges near tall obstructions.
2. Compare the most constrained parts of the project first.
3. Keep the same Summary shading angle target while you compare alternatives.

If the output does not match the site

• Recheck North offset.
• Recheck which surroundings are marked as Daylight Obstruction.
• Recheck model alignment before you change the target angle.

Use Themes, compass, and viewport and Properties panel for the related controls.