# Not able to adjust UV maps of the IFC file imported with Datasmith

**URL:** <https://forums.unrealengine.com/t/not-able-to-adjust-uv-maps-of-the-ifc-file-imported-with-datasmith/492741>\
**Category:** Pipeline & Plugins\
**Tags:** Datasmith, Revit, unreal-engine, import, UE4-26, question\
**Created:** [January 31, 2022, 11:57am UTC](https://forums.unrealengine.com/t/not-able-to-adjust-uv-maps-of-the-ifc-file-imported-with-datasmith/492741 "2022-01-31T11:57:57Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Massarc](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Massarc](https://forums.unrealengine.com/u/Massarc)\
**Post date:** [January 31, 2022, 11:57am UTC](https://forums.unrealengine.com/t/not-able-to-adjust-uv-maps-of-the-ifc-file-imported-with-datasmith/492741/1 "2022-01-31T11:57:57Z")

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Hi there,

I’m working in a small office that is using Revit LT and not able to install the datasmith plugin on my machine.

The only way that I found to import my geometry and maintain the materials categories (like in a window, have two different material for glass and frame) is saving IFC file from Revit and use datasmith add-on in UE4.

The issue is when I try to adjust the UV map size or scale, it’s showing correctly when I select the toll in the modeling mode, but when I apply the setting it’s not register the change.

It’s not an issue when I use FBX file but I lose the distinction of the material differences in one object like a window with this format.

Please see the screenshots and any help would be great.

 ![001](https://d3kjluh73b9h9o.cloudfront.net/original/4X/5/e/c/5ecedc226ef73c3e57138e3119f297bcbff3b55a.jpeg)

 ![002](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/d/5/6d5d2773101bbbdf768de987a41c92abbaa9ccd9.jpeg)

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**Author:** ![UE\_FlavienP](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/ue_flavienp/32/1194546_2.png) [@UE\_FlavienP](https://forums.unrealengine.com/u/UE_FlavienP)\
**Post date:** [February 1, 2022, 10:05pm UTC](https://forums.unrealengine.com/t/not-able-to-adjust-uv-maps-of-the-ifc-file-imported-with-datasmith/492741/2 "2022-02-01T22:05:38Z")

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Hello Massarc  
are you on 4.27.2? Does it still behave not as expected once you untick “UV scale Relative to World Space”?

The UE5 UI seems to propose a lot more options. Have you tried it?

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/c/0/fc0d5f31bc06ea051884fca379895b9192dc86b5.png)

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<div class="post-metadata">

**Author:** ![Massarc](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Massarc](https://forums.unrealengine.com/u/Massarc)\
**Post date:** [February 6, 2022, 1:39am UTC](https://forums.unrealengine.com/t/not-able-to-adjust-uv-maps-of-the-ifc-file-imported-with-datasmith/492741/3 "2022-02-06T01:39:51Z")

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Hi @UE_FlavienP

Thanks for your response.

The UV scale to world is disabled when I try to change the scale.

Since I have a non-RTX card, I’m using Luoshuang’s GPULightmass which doesn’t work for me in UE5

_Update. Same issue exists in UE5_

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**Author:** ![p-himik](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/p-himik/32/927904_2.png) [@p-himik](https://forums.unrealengine.com/u/p-himik)\
**Post date:** [April 26, 2024, 7:48pm UTC](https://forums.unrealengine.com/t/not-able-to-adjust-uv-maps-of-the-ifc-file-imported-with-datasmith/492741/4 "2024-04-26T19:48:14Z")

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Try the following:

1. Right-click the mesh in the outliner → `Edit`
2. In the Details panel, navigate to `LOD 0` → `Build Settings`
3. Uncheck `Generate Lightmap UVs`
4. Save and go back to the main editor

Now UV scaling and translation should work just fine.