I'm having issues with the sun bleeding through the corners of my models, particularly where it is just simple planes meeting (no thickness to walls/ceilings/floors). Example attached of a simple rectangle box with a standard color material painted on all surfaces. If I add wall/ceiling thickness the light bleed stops.
Light (Sun) bleed in corners
- Thread is marked as Resolved.
Hi Tim , please check out this FAQ Article I've created here:
Why do I see a light glow in areas without any gaps?
Essentially, in your case you will want to make the walls thicker - that should then get rid of the light bleeding. Additionally you could also dial down the Sun brightness in the atmosphere tab of our Visual Settings.
This is unfortunate, as it's common to not fully model every thickness everywhere in a models.
See example of how much this impacts lighting, globally.
Simple 6 sided closed box drawn - no wall wall/floor/ceiling thickness - just planes joining together.
(lights) versions should match each other. (no lights) should match each other as well. They don't. Clearly, light bleed in daytime is causing some problems illuminating incorrectly. I've also attached two without lights where you can clearly see the light bleed impacts on global illumination.
See explanation in this thread on what is happening here: Interior Time of day
Hmm- I agree for a studio scene that simply making it night time is a workaround. But that's not going to work for my typical models, as they are large building with windows and exterior elements, etc, that require light coming through the windows. The issue still stands, either way, that sunlight is ignoring geometry to some extent. And it's causing some confusion when trying to accurately model artificial light/materials.
Easiest way around this is just give all walls a proper thickness (push/pull geometry as needed and the problem goes away), but if you don't want to do that and want simple planes for walls then for internal scenes you can just enclose the entire model in a large box. If you need to have daylight coming in through windows etc then cut openings in your box. You're essentially just giving the walls the thickness they need to stop light bleed at the corners in a less tidy fashion.