headus 3D tools

[UV]

How to fix odd face , i enable "clean" in load option but my model look something like this .. please help how to fix it.





Best regard

[headus]

Can you email me that OBJ file? It looks like the "Clean" is really confused about the geometry, so I'm keen to see what your original file is like.

Phil

[UV]

[headus]

Thanks for sending the OBJ file!

Here's a couple of the "odd" faces that UVLayout is finding ...

f 466/150 473/150 474/150 466/150
f 466/150 477/150 466/150

The numbers before the slash are indexes into a list of XYZ vertexes, and the duplicated indexes there are what UVLayout is finding and the cleanup is creating the blue edged holes.

I should be able to get the clean function to fix these up in a nicer way, but in the meantime, check if your 3d modeling application (3ds max?) has its own mesh clean-up tools. It needs to look for and fix duplicated vertexes, and then you should be able to load that mesh into UVLayout without any errors.

Phil

[headus]

Actually, UVLayout's clean is already deleting duplicate indexes, so there more going on in the problem areas than just that.

What I suggest is having a closer look at the polys in the three problems areas (see below) in your modeling application. Grab vertexes and move then around to see if you can work out why the topology in those areas is messed up. You could also just delete those polys and add new ones.

Phil

[UV]

[UV]

ok,everything is clear but only has a blue seam in the mouth please look at this picture. that mean i should fix the vertexs again?



blue seam in the mouth



best regard
UV

[headus]

Blue edges indicate holes in the geometry. If you look at that from the inside (see below) you can see the missing polys. You can still flatten this mesh out to create UVs, so having holes like this isn't necessarily a problem.

Phil

[UV]

[UV]

hi, i would like to use symmetry but it has some problem like this?




best regard
UV

[headus]

Have a look at the image below ... its a close-up of the two wrists.

The green marked quad is where the symmetry matching has stopped because the topology is different on each side. What I think has happened is that you originally had a 5 sided polygon there (I've outlined it in red); something has turned that into a quad and a triangle, but the division has been done differently on each side (blue dotted line).

If you look at those parts of the model in your application and see a 5 sided poly, then its your applications OBJ exporter that's doing it; there might be options to stop it from doing that?

Phil

[UV]

[headus]

Yes, you need to move that dividing edge so that the left side is a mirror image of the right side. In the image below I've drawn in a black line where you need to move the edge to in the right wrist.

There's probably going to be other polygon pairs just like this in other places, but just keep running the Symmetry Find and looking for the green marked polys to find the bad area.

Phil

[UV]

[UV]

it's clear now and ready to create symmetric uvs . thank you

best regard
UV