Hi
If you just want to assign materials and decals you could use Simlab Lite. Its free and easy to use but you will not easily get a worn or grungy look.
This model is entirely made in Moi and textured in Simlab
Of course yes!
When it's not from me i give the credit "By ..." !
It's a game's boy with the crazy free Shader online to make such texture! :) https://stephaneginier.com/archive/editSDF/
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Pilou
Is beautiful that please without concept! My Gallery