I am having a usd file in omniverse create, but the texture is missing.
How is it possible, to attach the .png texture to a existing .usd file in omniverse create?
I think what you want to do is right click your prop, Select Create - Material - Omni PBR
Then find the Omni PBR in the Looks section of the stage, and set the Albedo Map
You can also set the brightness here with Albedo Brightness.
You might have to adjust the Scale of the Texture using the Texture UV Scale.
is that possible to make only one side .png in this box, not six sides of them?
You will have to to do UV unwrapping/UV mapping in DCC like 3dsmax for that to happen.