Hi, I'm trying to make weapons for some old game engine. These game engine only use one diffuse map for textures, so I assume substance painter isn't a good idea. Here's some example of what I'm trying to learn:
This is for an old game engine though, single diffuse map only. No roughness/metalness/etc. Photoshop would be fine for this. We used to have a bunch of tutorials for this kind of stuff. Painting gradients to look like metals, etc.
Dont use Photoshoph. Its to much work to get all the PBR channels right. Just use Substance Painter or Quixel Mixer. Edit:: I have spoken to fast. But still use a 3D painter to project images onto your asset and clean it in 3D. Even if you use only the Diffuse. Go with Substance.