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light projecting through walls

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Alex McMurraylight projecting through walls
by on Oct 12, 2012 at 2:12:47 am

I have come across a situation concerning lights that I can't seem to rectify.
I have a large room separated into two by a roof to ceiling wall, 4cm thick.
On the far side of the wall, I have a number of area lights in cylindrical form to simulate flouros.
There are also objects such as balconies and railings.

when looking at a quick render from the outside, the balconies and railings can be plainly seen as if projected onto the wall.

I have played with settings of the lights and the wall, but cannot fix it.

The texture on the wall is a UVW map of wallpaper.

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Brian JonesRe: light projecting through walls
by on Oct 12, 2012 at 3:13:58 am

light leaking under walls can be a problem if the wall is thin and the light settings are not right but shadows projected on a wall are usually only visible if Backlight is used in the Luminance channel of a material of an object that is one poly thick. If it's not that it would help to see the scene file.

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Alex McMurrayRe: light projecting through walls
by on Oct 12, 2012 at 5:47:03 am

Thank you Brian, played with the lighting settings, disabling the ambient illumination helped.
It also helped with the other problem you mentioned, light spill with thin single poly walls.

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