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Remove illumination preprocessing on specific space

Hi - I am designing a set of tunnels in complete darkness. Because starting location has some daylight I have decided to include sky into the level, but the rest of map should be dark. Now is the problem - sometimes places which should be shadowed are unexpectly lighted (example below). I decided that instead of trying to patch it up I should just remove main cause of unwanted light, which is daylight itself. So - how can I tell editor that I want to have rendered light on some space, and somewhere I want to have complete darkness?

Here is my tunnel from outside:

alt text

(place with hole on right is desired space with light, the rest should be in darkness)

And here is the bug - first picture is with flashlight on, second is after turning flashlight off. It is expected to be total darkness.

alt text alt text

Product Version: UE 4.14
Tags:
level.png (270.7 kB)
one.png (228.4 kB)
two.png (6.4 kB)
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asked Nov 28 '16 at 02:26 AM in Rendering

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Ch3shireCat
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avatar image Ch3shireCat Nov 28 '16 at 01:36 PM

For now I fixed the problem with editing sky mesh to be only half-sphere - i shaped it into much smaller version. But still general question remains, how to exclude some space from light preprocessing.

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