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Problem with stacked UV baking

Anything related to baking, texturing or sharing useful advice.
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AleksandarPap
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Fri Aug 31, 2018 4:48 pm

Hello, I have one problem that is bugging me for a while. The problem is that I wanted to stack/mirror parts so I can save some UV space and get better resolution. I've moved stacked UVs to the side by 1 but I get this weird triangulation on moved UVs.

Sorry I don't know how to embed pictures.

1) These parts are moved out of standard UV space by 1
https://gyazo.com/5a74e4caf8f1cda74fbac8f241d2c1e4

2) This is how they are baked
]https://gyazo.com/38238bf4c107996e041195bd14ab2664

I had to try to stack/mirror some identical parts so I can save some space because if I don't do that there are tons and tons of parts in the UV map and the resolution gets really bad even at 4k because of all the parts on the model. So my question is how do you deal with this kind of problem?
AleksandarPap
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Fri Aug 31, 2018 9:28 pm

I've tried with one object only so it will be easier for me to test it, still same results...

1) This is how UV Map looks inside the Blender
https://gyazo.com/ece690f20185887c18b1face3356b5b7

2) This is how UV Map looks inside SP, there are artifacts even before I bake the object ( every edge seems to be hard )
https://gyazo.com/229921a126b8e466ecc7491ca51005bf

3) Baked result
https://gyazo.com/b07045b1d4564eb1bd4a8004042a9146
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Laggtastic
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Sun Sep 02, 2018 3:27 pm

Hey there :)

According to what I see here; I guess it has to do with the smoothing of your model.
Correct smoothing is very important for the baking process, the smoothing groups (as they are called in 3Ds Max) should be based on the UV shells.
In the tutorial Tim makes use of Textools, with that you can utilize the tool "Smoothing Groups from UV Shells".

I did some quick google-searching and it turns out that Textools is also available for Blender now :)
http://renderhjs.net/textools/blender/

Not sure if Textools in combination with Blender has the same smoothing groups from UV shells tool, but you might want to look into that :icon_thumbsfallout:
AleksandarPap
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Sun Sep 02, 2018 11:47 pm

Hey Laggtastic thanks for answering my question but I've found the problem by rewatching Tims unwraping of AKM. Instead of keeping mirrored UVs in 0-1 UV Space I've moved it outside and that caused problems. Its good now :ok:
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