Hi,
I’m working in a website with tools for VFX creation for realtime applications, the website is https://vfxparlor.com/, where you can find tools to create VFX textures, process albedo or diffuse textures into PBR maps, use the regular editor or use a node based editor to generate textures without the need of paying Substance PAinter if you only want to create grayscale textures.
Hope you like it, follow my tutorials:https://www.youtube.com/watch?v=0KeNlHj7A6o
Thank you for your attention