# Should I Include OpenGL images for Materials?

**URL:** <https://forums.unrealengine.com/t/should-i-include-opengl-images-for-materials/778373>\
**Category:** Programming & Scripting\
**Tags:** unreal-engine, question\
**Created:** [February 25, 2023, 12:53pm UTC](https://forums.unrealengine.com/t/should-i-include-opengl-images-for-materials/778373 "2023-02-25T12:53:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![APONGames](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@APONGames](https://forums.unrealengine.com/u/APONGames)\
**Post date:** [February 25, 2023, 12:53pm UTC](https://forums.unrealengine.com/t/should-i-include-opengl-images-for-materials/778373/1 "2023-02-25T12:53:28Z")

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Hi! I’m building a small 3D game that I want to publish on Steam, and I’ve been making my own models in Blender, and then importing the FBX files into Unreal. I am getting textures for my materials from places like Polyhaven, and I’ve noticed that many of them have a DirectX version of an image and an OpenGL version of the image.  
Should I include both in my project, and is there a way for me to specify to Unreal which is which? I guess, in other words, do I need to worry about taking OpenGL into account for my game, or will Unreal handle it all?  
Thanks!

Edit: This seems to be more of an issue for normal mapping, not regular images.

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**Author:** ![EliasWick](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/eliaswick/32/1175208_2.png) [@EliasWick](https://forums.unrealengine.com/u/EliasWick)\
**Post date:** [February 25, 2023, 5:03pm UTC](https://forums.unrealengine.com/t/should-i-include-opengl-images-for-materials/778373/2 "2023-02-25T17:03:04Z")

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The image you import to the engine can be .jpg, .png, .dds, among others. I personally use .png or .tga due to the non-compression of images. You don’t have to worry about openGL images and DirectX versions. Ultimately they are both .dds right?

I uploaded my [game](https://store.steampowered.com/app/1080180/Love_Is_In_The_Space) to Steam, and it was only using .png textures. It works perfectly! 🙂