normal map seam
normal map seam
hi i attach my problem photo, what should i do?
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- bottleofram
- Posts: 355
- Joined: 17 Aug 2010, 11:21
Re: normal map seam
If there's a way to correctly export an object space normal map from zbrush to soft, I am yet to see one. What worked for me is tangent based, flipped red channel and smoothed uvs i think. Not 100% sure - been using xNormal for a while now...
Re: normal map seam
thank you for your reply,is it possible that i use unique uv for something like sphere and export it to zb and import it again to softimage without seams, that colored mesh in top right is not a object space, that is simple ultimapper that i use it instead of unique uv that you can see uv islands, i can's invert red channel because i should do it for each island and i can't do it, i read a bout using ultimapper and smothing it but is it a absolute answer, i am looking for a 100% working solution.
- bottleofram
- Posts: 355
- Joined: 17 Aug 2010, 11:21
Re: normal map seam
Well, not gonna be of much help, but... Unique uv's will always be a tricky ground because of the orientation of the islands. If its a static object, most of the times you can get away with adjusting tangentOp's smoothing slider based on a camera position (try max and min values first).
Btw, just checked, i was wrong about flipping red channel - dont need that...
Also, you dont need ultimapper if you are exporting maps from a different program. Just assign a tangent property.
Btw, just checked, i was wrong about flipping red channel - dont need that...
Also, you dont need ultimapper if you are exporting maps from a different program. Just assign a tangent property.
Re: normal map seam
it's not the only matter of unique uv man, i just mentioned it cause i don't like messing with UVs, i like to find a way that i use simple uv without manipulating and export my object, it work for color map but unfortunately not for normals, anyway thank you for you time it was helpfull
Re: normal map seam
If youre using zbrush then I suggest you use UV master to unwrap your model.It will create a lot less seams and you can specify where you want them by just painting colours on the mesh.Plus using Xnormal should elimate 90% of any seam problems.Most of the time the bakes are perfect but I have had the odd one that still creates a seam.The only system I know that unwraps models which never create a seam is Unwrella but that is only for max and maya last time I looked.
Re: normal map seam
I' ve tested quite a few apps on trying to achieve seamless normal maps and found 3d coat gave me the best results, with a little trial and error, and you may still have to paint area's of the seam out in photoshop also.
Re: normal map seam
thank you guys i just think it solved with bunch of check box, but appearently it's a serious problem and in this case i use to unfold my models
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