# Changing material of black bars? (Anyone?)

**URL:** <https://forums.unrealengine.com/t/changing-material-of-black-bars-anyone/427718>\
**Category:** Cinematics & Media\
**Tags:** unreal-engine, constraint, UE4, question\
**Created:** [June 19, 2018, 4:51pm UTC](https://forums.unrealengine.com/t/changing-material-of-black-bars-anyone/427718 "2018-06-19T16:51:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Btoop](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Btoop](https://forums.unrealengine.com/u/Btoop)\
**Post date:** [June 19, 2018, 4:51pm UTC](https://forums.unrealengine.com/t/changing-material-of-black-bars-anyone/427718/1 "2018-06-19T16:51:16Z")

</div>

I’m currently using a orthographic camera with constrained aspect ratio (which causes black bars) and I’m trying to figure out how to change the colour/material of these black bars.

I’ve read here ([Aspect ratios and black bars and such - Epic Games Forums](https://forums.epicgames.com/udk/udk-main/udk-general-discussion/254905-aspect-ratios-and-black-bars-and-such)) that it is possible but haven’t been able to figure out the process.

Any help would anyone could provide would be greatly appreciated.