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Question by DeathHawk · Jan 08, 2013 at 07:57 PM · uvmapping

Texture Issue

Okay I don't know much about textures or how unity applies them. What I do know is I have an object that my 3d modeler made for me. He made the texture and UV mapped it himself. The model is of a boy, it is a 2.5D type model. For some reason neither one of us can figure out there is a line down the middle of him. I played with the texture a bit and got rid of the line somewhat but the 3d modeler claims that my changes should not have changed anything. If you have any useful information at all I would appreciate it.

Also when close up the line is not there. But for the iphone it is always far enough away for the line to show up.

So here is the line alt text It is down the middle not extremely noticeable but enough that it looks like he got cut in half and then glued back together.

Here is same distance with different texture alt text

I would upload the two textures but it is telling me I cannot do more than two.

fixed.png (5.2 kB)
line.png (6.8 kB)
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avatar image Loius · Jan 08, 2013 at 08:00 PM 1
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This is the sort of question that benefits greatly from having a screenshot attached :P

avatar image Piflik · Jan 08, 2013 at 08:13 PM 0
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Not just a screenshot, it would also be useful to know what you did to solve the problem.

avatar image DeathHawk · Jan 08, 2013 at 08:53 PM 0
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Sorry for not having screenshots before.

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Answer by Piflik · Jan 08, 2013 at 08:57 PM

Can't see much on the tiny screens, but this is most likely a mipmapping issue. The padding on the individual UV islands is too thin, so neighboring colors bleed through on the borders of the UVs when the texture is viewed from a distance.

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avatar image DeathHawk · Jan 08, 2013 at 09:08 PM 0
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I don't even know what a UV island is. I don't do the texture stuff at all. I am a programmer, but this sounds informative and the guys I work with seemed to find it informative so thanks we are working on it. I will let you know if it turns out to be useful.

avatar image DeathHawk · Jan 08, 2013 at 11:05 PM 0
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Okay this has appeared to help my texture guy. He is working on things now. Thanks for the help. Sorry if I was a bit vague on this subject, once again programmer not artist.

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Answer by Julien-Lynge · Jan 08, 2013 at 08:57 PM

Try the texture import settings - if that center part is the edge of the texture (e.g. you have a single texture and are mirroring the UV coordinates around the center), then it's possible that you're getting bleed from the other edge of the texture. Try setting edgemode to clamp. Also try setting the texture type to advanced and adding mip maps, and play around with the filter (e.g. try trilinear or point).

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avatar image DeathHawk · Jan 08, 2013 at 09:07 PM 0
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Alright I have done this in the past, but just to double check everything I went through and messed with more stuff. I did not help much in the long run. I did succeed in making it worse at one point though. That was interesting.

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