You should really read up on the wiki and google search more before asking questions that can easily be answered with a simple google or answerhub search.
power of two images (256,512,1024,etc,etc) work better since UE4 can mipmap them (another word to google) which helps with performance.
Dont compress textures before importing them into ue4 as UE4 has its own compression system specifically made to work as good as possible for gpu’s.
you could also reduce the texture size to 4096*4096 instead.
Not many things currently need such high res. textures.
So why is the Max In-Game resolution half of the texture size on bigger textures? It’s doesn’t matter if it’s power of two or not.
I need a 8192 x 4096 texture and my graphic hardware supports it. The texture is recognizable smaller/blurier in Play mode and packaged game. Is this a bug or what? Or is the worlds best game engine limited to 4096 x 4096.
If this is so I have to split my geometry in half and use multiple smaller textures instead of a big one.
And please read the OP question carefully before you start the old “read the f***ing manual” speech. This has nothing to do with power of two.
Tim Hobson’s answer in his forum post is the best. The UI seems to have changed/been made more robust, since then. I believe the default project device must not be Windows. It may need to be changed in the Android settings, for instance.
-Go to Window > Developer Tools > Device Profiles
-Click on the device name > TextureLODGroups Setting
-Change the Max LOD Size
-Click the “Save as Default” at the top
Also, DeviceProfiles.ini in project location, [YourProject]/Config/DeviceProfiles.ini, (not the editor install location) has [/Script/Engine.TextureLODSettings], then that is the master override for all TextureLODGroups. This is Unreal’s comment in the .ini on their documentation page:
; NOTE THAT ANY ITEMS IN THIS SECTION
WILL AFFECT ALL PLATFORMS!!!
Also note (because there is not much documentation on this):
"To create a device profile, edit your project’s DefaultDeviceProfiles.ini file. Make sure to add or create a section called [DeviceProfileNameAndTypes]. See Engine/Config/BaseDeviceProfiles.ini for examples.