# Lights in cascade ignore lighting channel

**URL:** <https://forums.unrealengine.com/t/lights-in-cascade-ignore-lighting-channel/364113>\
**Category:** Rendering\
**Tags:** bug, channel, unreal-engine, Lighting, question\
**Created:** [July 15, 2016, 9:33am UTC](https://forums.unrealengine.com/t/lights-in-cascade-ignore-lighting-channel/364113 "2016-07-15T09:33:46Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Luos](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/luos/32/918700_2.png) [@Luos](https://forums.unrealengine.com/u/Luos)\
**Post date:** [July 15, 2016, 9:33am UTC](https://forums.unrealengine.com/t/lights-in-cascade-ignore-lighting-channel/364113/1 "2016-07-15T09:33:46Z")

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Bug persists in any version that has lighting channels.  
Cant show you any visual documentation as the project is NDA.

Seems the lights from cascade behave differently and well… tell any light that uses lighting channels to ignore the channels and emit on all surfaces whenever a cascade light is near.  
I think thats… the best I can explain for now.

Asking for permission to perhaps showcase it in a pm.

Might be worth checking out 🙂

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**Author:** ![el\_zee](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@el\_zee](https://forums.unrealengine.com/u/el_zee)\
**Post date:** [July 15, 2016, 12:12pm UTC](https://forums.unrealengine.com/t/lights-in-cascade-ignore-lighting-channel/364113/2 "2016-07-15T12:12:15Z")

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I’m also working on this project – here’s some more info on replication:

Player Character BP has a light attached set to lighting channel #2 only

Player Character BP mesh has lighting set to channel #2 only

This looks fine and the light only affects the player until the player enters the influence of a particle light radius. Then all lighting channels are affected by the player light.

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**Author:** ![Tim\_Hobson](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Tim\_Hobson](https://forums.unrealengine.com/u/Tim_Hobson)\
**Post date:** [July 15, 2016, 5:06pm UTC](https://forums.unrealengine.com/t/lights-in-cascade-ignore-lighting-channel/364113/3 "2016-07-15T17:06:03Z")

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Thanks guys!

I’ve submitted UE-33329 for this issue.

Tim

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**Author:** ![Luos](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/luos/32/918700_2.png) [@Luos](https://forums.unrealengine.com/u/Luos)\
**Post date:** [July 18, 2016, 1:37pm UTC](https://forums.unrealengine.com/t/lights-in-cascade-ignore-lighting-channel/364113/4 "2016-07-18T13:37:22Z")

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Hey Tim!  
this post was just made:

> **[Moveable Light - Lighting Channel Error](https://forums.unrealengine.com/questions/454285/moveable-light-lighting-channel-error.html)**
>
> Hi guys! We encountered an issue with the lighting channels. We use multiple lighting channels for lighting the interior of a moving vehicle and for the exterior environment. The environment use fully baked lighting, and the moving vehicle has some...

And it might be related to this issue.

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**Author:** ![Tim\_Hobson](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Tim\_Hobson](https://forums.unrealengine.com/u/Tim_Hobson)\
**Post date:** [July 18, 2016, 2:12pm UTC](https://forums.unrealengine.com/t/lights-in-cascade-ignore-lighting-channel/364113/5 "2016-07-18T14:12:48Z")

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Doesn’t seem directly related, but I’ll have a look when I get time. Thanks for pointing it out.

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**Author:** ![StrangerGwenn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/strangergwenn/32/983202_2.png) [@StrangerGwenn](https://forums.unrealengine.com/u/StrangerGwenn)\
**Post date:** [December 30, 2017, 12:15pm UTC](https://forums.unrealengine.com/t/lights-in-cascade-ignore-lighting-channel/364113/6 "2017-12-30T12:15:12Z")

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Hey Tim, why is this “Won’t fix” ?