Light bleed

Hello,

I have rendered an interior of my somewhat fictive kitchen, in the apartment I live in. I am quite satisfied with the results so far. Although I’ve came across a strange white lightning in the ceiling on my render. Have searched the scene for hidden light planes but haven’t found any, have also overlooked the walls in the apartment and they shouldn’t be able leak any light from the sun or something like that.

The only light source’s that is placed in the scene is; the V-ray sun and two light planes in the two windows. (Have followed the webinar/tutorial for indoor lightning).

Does anyone have any idea where this white lightning comes from, because in real life it should be a shadow on that area.

Have played around with the settings a bit and I think I have narrowed it down to the Light Cache, although I don’t really understand why it is happening. Have tested with Irradiance Map only and then the lightning is gone but the rendering time is far longer.

Have also tested to raise the settings to;
Much larger image
Irridance map: Basic parameters min -3 max 0
Light cache subdivs: 1200

And the only thing I got was a smoother white lightning

Would be really happy if someone pointed in the right direction :).

//Best regards
Arre

RENDER

SETTINGS

Re: Light bleed

If you’re using Rhino (this is the Rhino forum) try joining the wall surface to the ceiling surface, that should ensure there are no gaps in the rendermesh between the two.

That should sort your problem.

I don’t think this will have anything to do with Light Cache(?).

Other than that i would have tried the same as you Irradience mapping min rate : -3 max rate: 0

Hope this helps

Stu

Re: Light bleed

Thanks for a fast reply!

Since the walls are blue and the roof is white… i tried to thicken the roof abit so instead of a surface it became a good old solid… and it worked! :smile:

Thanks again!

//Arre

Re: Light bleed

Nice, glad to help :slight_smile:

Re: Light bleed

in the “irradiance maps” rollup… active “check sample visibility”.

Re: Light bleed

“check sample visibility = will get rid of light leaks” aha! :), does anyone know if this setting is a time killer or could I have it on all the time?

Thanks btw!

Re: Light bleed

all the time..

Re: Light bleed

oh nice, thanks for the info! :slight_smile: