Anyone figured out UV Unfold yet? - Polyloop

SEJ · 2nd May 2006, 19:30

Has anyone figured out UV Unfold and how to get the texture maps to appear correctly when brought into Carrara?

This tool seem complicated and I have not been able to get satisfactory results. I am wondering if it possible or not.

If you have not tried this tool out you may want to give it a shot and see how it performs.

JuST · 2nd May 2006, 22:32

Well, I did it and got nice results so far...
I just selected the edges to define the seams, then changed into the "unfold" mode (in the "uv and paint" panel) and then clicked on the "head"-icon next to the + and - buttons and the mesh unfolded itself.
Perhaps this was just a lucky result by chance or the model was not as complex as yours... But it seemed to be easy to me.

BluesDragon · 2nd May 2006, 23:31

Picking the edges for the seams appears to be the important part so far.

I have tried a couple of different objects with various results.

SEJ · 2nd May 2006, 23:48

Quote:

Originally Posted by JuST

Well, I did it and got nice results so far...
I just selected the edges to define the seams, then changed into the "unfold" mode (in the "uv and paint" panel) and then clicked on the "head"-icon next to the + and - buttons and the mesh unfolded itself.
Perhaps this was just a lucky result by chance or the model was not as complex as yours... But it seemed to be easy to me.

Yes, I got it to work to this point too inside Hexagon (seems easy and worked nice), however, when importing into Carrara the UV texture was not applied properly (bad results). A lot of white from the object showing through areas that should have been mapped. I am using object files because I was using displacement too. Also using the pins seem to mess up the UV unfold map inside Hexagon.

It doesn't seem to play well with Carrara. Any info.

SEJ · 3rd May 2006, 00:31

Well I got UV Unfold UVs to work inside Carrara by exporting from Hex 2 as a Carrara file. However the exported displacement map was a mess when applied in Carrara.

When exported as an object file the displacement is good and the UV texture is a mess.

Hex 2 driving me nuts! LOL

SEJ · 3rd May 2006, 03:22

I tried flipping the texture map on an object file exported from Hexagon 2 with UV Unfold UVs. It then showed up on the object file but the texture was very distorted (showing the objects white) at every rotation. Then I saved the same file as a Carrara file and the texture map came in fine but when I tried to use the Hexagon exported displacement map on the object it looked bad and the displacement did not work as it should at all.

To sum it up, it appears that Hexagon 2 exports displacement maps in object files just fine, however if UV Unfold is used for the texture map on the object file the texture is messed up (no matter what). On the other hand the UV Unfold textures come in fine on an object exported from Hexagon 2 as a Carrara file but the Hexagon 2 exported displacement map does not work on the Carrara object.

This is seeming more and more like a BIG BUG!

bwtr · 3rd May 2006, 03:24

www.daz3d.com/bugs/

LaRoy · 4th May 2006, 07:14

Sej,

I just wanted to say that I believe that exporting Object files (from models with unwrapped UVs) results in a flipped UV map. I was messing with the hippo model (default Hex models) and imported it into XSI only to find that my UV's were flipped. I had to mirror the UVs and reposition them (in XSI). I thought that this might be an issue exclusively with XSI, but it doesn't sound like it now...

I can't believe that they released this application with all of these obvious bugs...

-LaRoy

SEJ · 4th May 2006, 07:20

Thanks LaRoy,

I tried flipping the texture map. No luck in Carrara.

However it seems that UV Unfold has issues with Carrara? (from my testing---and I'm not perfect! LOL):

UV Unfold...Object file, displacement mapping works, texture map does not.

UV Unfold...Carrara file, texture map works, displacement mapping does not.

I'm not having good results either way inside Carrara using UV Unfold produced mapped objects. UV Unfold is buggy in my opinion (please prove me wrong...I want to use this tool) How does one use UV Unfold for use with Carrara? So far I have had no luck. Maybe you could point the way to a good solution?

Check out this recent UV Unfold tutorial post for more info: http://www.eovia3d.net/showthread.php?t=7529

Thanks Again LaRoy

LaRoy · 4th May 2006, 07:27

Hi Sej,

Actually, I was a little verbose in my message. I was more or less confirming that there is an issue with the object (.obj) export from Hex2 with unfolded UVs. I don't have Carrara to confirm the remainder of your issues. Hopefully, someone else who has Carrara will actually be able to confirm for you!

Good luck! I'm off to the Daz bug page.

-LaRoy

-Edit: Oops, just reread your post. I don't know enough about Carrara's tools to give you any advice on how to fix the UV's, but I will say that I had to mirror (flip) the UV map horizontally, and then rotate it 180 degrees to get it to work. Maybe that helps?

-Edit PT2: Okay, I checked and this bug is listed as "Major" in the bug tracker, though it is completely correctible (at least with XSI). And it's late, so it didn't occur to me until I wrote it, but instead of flipping the UVs horizontally and rotating 180 degrees, you should be able to flip them vertically and not have to rotate them.

Grendel · 4th May 2006, 11:18

A simple walk-thru here: http://www.eovia3d.net/showthread.php?t=7535

2nd May 2006, 19:30	#1 (permalink)
SEJ Spline Join Date: Mar 2006 Posts: 44	Anyone figured out UV Unfold yet? Has anyone figured out UV Unfold and how to get the texture maps to appear correctly when brought into Carrara? This tool seem complicated and I have not been able to get satisfactory results. I am wondering if it possible or not. If you have not tried this tool out you may want to give it a shot and see how it performs.

3rd May 2006, 03:22	#6 (permalink)
SEJ Spline Join Date: Mar 2006 Posts: 44	UV Unfold bug? It sure looks that way. I tried flipping the texture map on an object file exported from Hexagon 2 with UV Unfold UVs. It then showed up on the object file but the texture was very distorted (showing the objects white) at every rotation. Then I saved the same file as a Carrara file and the texture map came in fine but when I tried to use the Hexagon exported displacement map on the object it looked bad and the displacement did not work as it should at all. To sum it up, it appears that Hexagon 2 exports displacement maps in object files just fine, however if UV Unfold is used for the texture map on the object file the texture is messed up (no matter what). On the other hand the UV Unfold textures come in fine on an object exported from Hexagon 2 as a Carrara file but the Hexagon 2 exported displacement map does not work on the Carrara object. This is seeming more and more like a BIG BUG!

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2nd May 2006, 22:32	#2 (permalink)
JuST Pixar want to hire me! Join Date: Jul 2005 Location: Braunschweig, Germany Posts: 500	Well, I did it and got nice results so far... I just selected the edges to define the seams, then changed into the "unfold" mode (in the "uv and paint" panel) and then clicked on the "head"-icon next to the + and - buttons and the mesh unfolded itself. Perhaps this was just a lucky result by chance or the model was not as complex as yours... But it seemed to be easy to me.

2nd May 2006, 23:31	#3 (permalink)
BluesDragon Box modeling Join Date: Jul 2005 Posts: 243	Picking the edges for the seams appears to be the important part so far. I have tried a couple of different objects with various results.

3rd May 2006, 00:31	#5 (permalink)
SEJ Spline Join Date: Mar 2006 Posts: 44	Well I got UV Unfold UVs to work inside Carrara by exporting from Hex 2 as a Carrara file. However the exported displacement map was a mess when applied in Carrara. When exported as an object file the displacement is good and the UV texture is a mess. Hex 2 driving me nuts! LOL

3rd May 2006, 03:24	#7 (permalink)
bwtr Brian Join Date: Jul 2005 Location: South Australia Posts: 2,094	www.daz3d.com/bugs/

4th May 2006, 07:14	#8 (permalink)
LaRoy Vertex Join Date: Apr 2006 Posts: 10	Sej, I just wanted to say that I believe that exporting Object files (from models with unwrapped UVs) results in a flipped UV map. I was messing with the hippo model (default Hex models) and imported it into XSI only to find that my UV's were flipped. I had to mirror the UVs and reposition them (in XSI). I thought that this might be an issue exclusively with XSI, but it doesn't sound like it now... I can't believe that they released this application with all of these obvious bugs... -LaRoy

4th May 2006, 07:20	#9 (permalink)
SEJ Spline Join Date: Mar 2006 Posts: 44	Thanks LaRoy, I tried flipping the texture map. No luck in Carrara. However it seems that UV Unfold has issues with Carrara? (from my testing---and I'm not perfect! LOL): UV Unfold...Object file, displacement mapping works, texture map does not. UV Unfold...Carrara file, texture map works, displacement mapping does not. I'm not having good results either way inside Carrara using UV Unfold produced mapped objects. UV Unfold is buggy in my opinion (please prove me wrong...I want to use this tool) How does one use UV Unfold for use with Carrara? So far I have had no luck. Maybe you could point the way to a good solution? Check out this recent UV Unfold tutorial post for more info: http://www.eovia3d.net/showthread.php?t=7529 Thanks Again LaRoy

4th May 2006, 07:27	#10 (permalink)
LaRoy Vertex Join Date: Apr 2006 Posts: 10	Hi Sej, Actually, I was a little verbose in my message. I was more or less confirming that there is an issue with the object (.obj) export from Hex2 with unfolded UVs. I don't have Carrara to confirm the remainder of your issues. Hopefully, someone else who has Carrara will actually be able to confirm for you! Good luck! I'm off to the Daz bug page. -LaRoy -Edit: Oops, just reread your post. I don't know enough about Carrara's tools to give you any advice on how to fix the UV's, but I will say that I had to mirror (flip) the UV map horizontally, and then rotate it 180 degrees to get it to work. Maybe that helps? -Edit PT2: Okay, I checked and this bug is listed as "Major" in the bug tracker, though it is completely correctible (at least with XSI). And it's late, so it didn't occur to me until I wrote it, but instead of flipping the UVs horizontally and rotating 180 degrees, you should be able to flip them vertically and not have to rotate them.

4th May 2006, 11:18	#11 (permalink)
Grendel Moderator Join Date: Jul 2005 Location: Houston, Texas Posts: 1,262	A simple walk-thru here: http://www.eovia3d.net/showthread.php?t=7535