Someone asked about Converting non PBR level to PBR level
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Published on ● Video Link: https://www.youtube.com/watch?v=JWlInmrJRI8
For this example, I used Cliff map since it still uses 1.0 terrain paints.
Converted it to PBR (but only converted 1 terrain paint for video)
I made a 2nd terrain paint in addition to that and showed how to add existing ground cover from cliff map to the new terrain paint. To me it seems easier to just make a new terrain paint than to have to rescale a lot of old terrain paints.
Not mentioned, DDS will need to be converted to png or jpg for pbr terrain paints. I would not personally use a jpg for a terrain paint. I would stick to PNG.
I forgot to mention the texture for the terrain paint can be increased to 4096 in the terrain block inspector window.