Hello! I’m creating my first prop pack for the Marketplace and was wondering what should my Normal map format be?
I haven’t found any official information, but I see that people mainly use DirectX. I’m creating a prop pack from photogrammetry, and Digital Asset Processing article says that normals should be OpenGL.
The only difference between OpenGL and DirectX is that the green channel is flipped.
If you’re building a Marketplace asset, I’d recommend using DirectX as it’s the default in Unreal. User’s won’t have to think about it. If they’re exporting to a ddc that is defaulting to OpenGL, they’ll have to flip it in the ddc.
Quixel Megascans, for instance, are using DirectX.