Unreal Engine Issues

UE-24529

DDS files with custom mipmap can not be imported

DDS files with custom mipmap can not be imported

Developer Notes

The engine won't allow you to import DXT.
You might also have to set the mipgen settings to LeaveExistingMips

Description

When a user attempts to create a .dds file using nvidia texture tools and saves it with custom mipmap settings, the resulting file fails to import into the engine.

Steps to Reproduce
  1. Open UE4Editor
  2. Create a new blank project without starter content
  3. Drag the included file into the content browser to attempt to import.

Expected: the file will import without issue.
Acutal: the file fails to import with the following message:
Failed to import 'C:\Users\Benjamin.Hyder\Desktop\BrickWallSimple.dds'. Failed to create asset '/Game/Developers/BenjaminHyder/BrickWallSimple'

Note: I attempted to import this to my developer folder.

Community References

4.14+: Importing .dds Cubemaps w/o full mip chain clears Alpha

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Fixed
ComponentUE - Graphics Features
Affects Versions4.12
Target Fix4.13
Fix Commit3002979
Main Commit3006426
CreatedDec 15, 2015
ResolvedJun 6, 2016
UpdatedMay 2, 2018