# Will using only 1/4 of a BSP cylinder cause issues? **URL:** \ **Category:** Asset Creation\ **Tags:** how-would-you-do-it, unreal-engine, brush, question\ **Created:** [July 24, 2014, 3:54pm UTC](https://forums.unrealengine.com/t/will-using-only-1-4-of-a-bsp-cylinder-cause-issues/289164 "2014-07-24T15:54:55Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [July 24, 2014, 8:00pm UTC](https://forums.unrealengine.com/t/will-using-only-1-4-of-a-bsp-cylinder-cause-issues/289164/4 "2014-07-24T20:00:12Z")
I haven’t used the Source engine in some years, but after some research I see what you are talking about now. UE4 doesn’t cull the back sides of BSP geometry or static meshes for you. How to achieve this is to model your assets with this in mind. A good rule of thumb is if you aren’t going to see the geometry, then it shouldn’t be there. Here is some links to help you find more info: > **[FBX Static Mesh Pipeline](https://docs.unrealengine.com/5.1/en-US/fbx-static-mesh-pipeline-in-unreal-engine/)** > > Setting up, exporting, and importing Static Meshes using the FBX content pipeline. > **[Best practices for 3d asset modeling suggestions?](https://forums.unrealengine.com/showthread.php?14582-Best-practices-for-3d-asset-modeling-suggestions)** > > I have been lurking this forum and soooo many tutorials on unreal and related tools & techniques. I have not come across one that addresses this though. I was really trying to study the sci-fi hallway example to learn how they did everything,... > **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from... Another great place to start is our Wiki tutorials and videos: > **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from... I hope that helps, TJ --- _[View the full topic](https://forums.unrealengine.com/t/will-using-only-1-4-of-a-bsp-cylinder-cause-issues/289164)._