Another normal map problem...

SH4DOWM4NTIZ · Oct 2014

Hey Polycounters,

I am having some issues with a normalmap I baked out...I am getting nasty seams on some edges:

Whereever I have a smoothing group split, I have a UV split in the unwrap, so I can't figure out why am getting this as result. Baking with cage in 3ds max.

Here are my low and high:

Hope somebody can help

AdvisableRobin · Oct 2014

A lot of the issues can be solved by adding in more supporting geometry. I'd look at the really sharp edges and give them a bevel. It would be helpful if you could post a picture of the low's wires.

SH4DOWM4NTIZ · Oct 2014

Thanks for the quick response. I guess chamfering would be an option, but I don't think i should be getting this result as it is. Here is the wireframe:

Bartalon · Oct 2014

How's your texture padding? If you have none, then you might get dark seams like that, especially on smaller texture resolutions.

SH4DOWM4NTIZ · Oct 2014

Thanks for the response, I set the padding to 4 and the texture is at 2048x2048 at the moment. Should I be setting the padding to a higher value? Also here is my unwrap, in case there might be something wrong with that:

Normal map also:

SH4DOWM4NTIZ · Oct 2014

Ok, never mind, I'm an idiot^^ just realised that i actually didn't split off the uvs in some areas where I have a smoothing group split, so I guess this is the reason for the seams, sorry everyone lol

ZacD · Oct 2014

Yeah, smoothing splits and UV splits should match up. It depends on the game engine you are using, but the safest bet is to always have them match up. Some engines are okay with having UV splits that aren't smoothing group splits, but a lot of engines automatically create a split there.

Another normal map problem...

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