# Terrain Flickering (Editor, 10x10x505 Tiles from World Machine)

**URL:** <https://forums.unrealengine.com/t/terrain-flickering-editor-10x10x505-tiles-from-world-machine/456188>\
**Category:** World Creation\
**Tags:** world-machine, unreal-engine, question, World-Composition\
**Created:** [September 29, 2019, 4:50pm UTC](https://forums.unrealengine.com/t/terrain-flickering-editor-10x10x505-tiles-from-world-machine/456188 "2019-09-29T16:50:21Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Raidfire.Net](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Raidfire.Net](https://forums.unrealengine.com/u/Raidfire.Net)\
**Post date:** [September 29, 2019, 4:50pm UTC](https://forums.unrealengine.com/t/terrain-flickering-editor-10x10x505-tiles-from-world-machine/456188/1 "2019-09-29T16:50:21Z")

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Hi Guys,

i have created a terrain with world machine and imported it as world composed tiled landscape into a ue4 third person test project.

Now i see terrain flickering at the end of the terrain. The Size is 5km x 5km. So is this usual in Editor Mode?

Here is a picture.

 ![288773-terrain-flickering-5kmx5km-10x10x505-tiles.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/5/c/b5c753d64eb6b2e8011b46637d982cbbea6cdd10.jpeg)

Cheers

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**Author:** ![BlueMind\_Studio](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@BlueMind\_Studio](https://forums.unrealengine.com/u/BlueMind_Studio)\
**Post date:** [September 30, 2019, 10:44am UTC](https://forums.unrealengine.com/t/terrain-flickering-editor-10x10x505-tiles-from-world-machine/456188/2 "2019-09-30T10:44:08Z")

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Flickering happens when TRIs are fighting. Have a look at the QuadOverdraw view. I have no experience with world machine imports, but - on normal meshes, you just move one mesh a pixel or something above the other one so they don’t overlap anymore and the flicker is gone.

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**Author:** ![neighborlee](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/neighborlee/32/1108786_2.png) [@neighborlee](https://forums.unrealengine.com/u/neighborlee)\
**Post date:** [January 29, 2024, 3:55pm UTC](https://forums.unrealengine.com/t/terrain-flickering-editor-10x10x505-tiles-from-world-machine/456188/3 "2024-01-29T15:55:39Z")

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My terrain project isn’t from wm, so , if the terrain itself made all in ue 5.3.2, is flickering , not all tiles, but many, how is that resolved ?

I an start playing on map in a certain spot, start walking round,and all of a sudden, no terrain, player is floating in the air, thats what it looks like.

For a time I thought this was maybe, having started got use Mac editor, maybe the Mac editor isn’t stable yet.

On another note, unity terrain shows no indications, from a new project terrain, of any flickering.

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**Author:** ![neighborlee](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/neighborlee/32/1108786_2.png) [@neighborlee](https://forums.unrealengine.com/u/neighborlee)\
**Post date:** [January 30, 2024, 4:22pm UTC](https://forums.unrealengine.com/t/terrain-flickering-editor-10x10x505-tiles-from-world-machine/456188/4 "2024-01-30T16:22:50Z")

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What to do when the terrain itself is flickering, and a high Rez screen shot, never shows it ?

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**Author:** ![LuckyCogStudios](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@LuckyCogStudios](https://forums.unrealengine.com/u/LuckyCogStudios)\
**Post date:** [December 10, 2024, 2:10am UTC](https://forums.unrealengine.com/t/terrain-flickering-editor-10x10x505-tiles-from-world-machine/456188/5 "2024-12-10T02:10:25Z")

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To fix the flickering in UE5 you can try setting the Velocity Pass to be “Write after base pass” in the project rendering settings:

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/8/2887ed2d2f3dc1b6e67d20db42f411f2979bd0d8.avif)

This fixed flickering for me in WorldScape

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**Author:** ![MostHost\_LA](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/mosthost_la/32/907035_2.png) [@MostHost\_LA](https://forums.unrealengine.com/u/MostHost_LA)\
**Post date:** [December 10, 2024, 3:07am UTC](https://forums.unrealengine.com/t/terrain-flickering-editor-10x10x505-tiles-from-world-machine/456188/6 "2024-12-10T03:07:15Z")

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The issue above was related to occlusion. Changing when the velocity base pass happens would do absolutely nothing for it.