Has anyone been able to do this recently? I’m trying to get a skybox from Spacescape into Unreal 4.21 and I’m getting that same “DDS uses an unsupported format” error. Tried everything in this thread, and it just doesn’t seem to recognize my DDS
Edit:
Found a solution. Open the file in Photoshop. Under Image->Mode, set it to 32bit. Then do File->Save As, and choose Radiance as the file type and save it as a .HDR file. Then import that HDR file into Unreal, and it’ll be recognized as a Cubemap.