[Mobile]: Mobile texture workflow

Development Rendering
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1

I have a bunch of source textures that our team has been using in development of a mobile game. We eventually plan on making a PC version. Therefore, my textures are between 2K-4K in size. I know the current limit on mobile textures is 2K. When you package your final game, do textures that are larger than allowed automatically get compressed to a reasonable size? Is there a way to control this without having multiple copies of the same file in low resolution and high resolution forms? I assumed there would be some sort of feature within UE4 that would allow you to limit the size of a texture file easily without altering the source. Of course, there may be one and I could have missed it.

Thank you for your time.

2

I think the way to solve this is with the TextureGroup LODBias setting. You make a platform-specific override DefaultEngine.ini and add stuff like this to it:

[SystemSettings]
TEXTUREGROUP_Character=(MinLODSize=256,MaxLODSize=4096,LODBias=0)

Setting the LODBias to 1 or 2 for mobile. A bias of 1 drops down from 4096->2048. Now I can’t remember exactly where the file has to be or what it has to be named for this to work.

3

Is it also possible to do this in the Device Profile in the Developer Tools, because it is not working and your solution to type the text in DefaultEngine.ini is not working