How to import custom mip maps?

Development Rendering
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9

Works fine for me. My test setup:
GIMP 2.10.20
UE 5.1.1
Texture size: 16

Steps to test this:

  1. Create 16x16 solid color image in GIMP
  2. Save as DDS: No compression, auto-generate MIPS
  3. Open the DDS in GIMP and choose to read MIPS
  4. Change color of each MIP to another solid color
  5. Save as DDS: No compression, use existing MIPMAPS
  6. Drag-drop DDS into UE content drawer
  7. Open texture, note it should have defaulted to MipMapGenSettings = LeaveExistingMips … if not the case then may need to set this and re-import
  8. Change LOD bias upward to see your imported mips
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