Just a bit of the progress I have made with some of this pack. Side by side video of the furniture and some of the building and ruins.
As far as re texturing goes. Dive in with both feet. Make a backup first of what you want to change. Keep the new in a separate folder so GG updates dont wipe it out.
Start with the model. Make sure smoothing groups are good and you dont get weird face normal shadows as you see in the following video.
Make sure the are no intended holes in the model, and more then likely the old LOD meshes have been wielded into the base mess during the last conversion and will need to be manually stripped from the mesh. Once that is all complete, you can open your textures in a paint program and start.
First decide if the texture just needs a color change or you want a completely different look. Duplicate the color layer and paint in the exact spots or you will be re uv mapping this model also.
Once you have that, then work on your normal map. Try and make it clearer and cleaner. You can de saturate the color texture and convert that to normal in many programs. When that is good, you can do the gloss map. White is dull and black is shiny. Then the metalness map. Black is non metal, white is metal.
Then you will need you AO map. This you will need to figure out how to do in which ever paint program you are using.
Once you have all that done, test in GG and then make further corrections.
There are a bunch of meshes you will need to remake as they just dont work right and trying to fix them takes longer to do then just remaking them. If you have to get that far, then re texture is useless and you might as well make your own.
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