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Problem with Ptex


ekunzendorf
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Hello All!

Long time, no activity, but that is about to change.

Having a spot of bother with Merging Model into Scene with Ptex. I have a head model that I am trying to extract the voxel color, normal and specular into Ptex. I have retopo'd the mesh and have the UVs created (although I have to select the polys of the retopo to see my UVs, which is a separate problem). I have created a UV set for the head. When I Merge Model into Scene with Ptex from the Retopo menu, I get the mesh crunched up as seen in the image second from the right. The odd part is that when I hide the Layer 1 in the Paint room I get no distortion in the mesh on Layer 0 or in the sculpt room. I have tried it with Smooth Object checked and unchecked and with Snapping off and on, still no joy. I am on 3.5.19A for the Mac as we have not upgraded from 10.5 at school. Any ideas?

Excelsior!

Eric Kunzendorf

Jacksonville University

post-3125-0-65592100-1320793584_thumb.jp

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Hello All!

Long time, no activity, but that is about to change.

Having a spot of bother with Merging Model into Scene with Ptex. I have a head model that I am trying to extract the voxel color, normal and specular into Ptex. I have retopo'd the mesh and have the UVs created (although I have to select the polys of the retopo to see my UVs, which is a separate problem). I have created a UV set for the head. When I Merge Model into Scene with Ptex from the Retopo menu, I get the mesh crunched up as seen in the image second from the right. The odd part is that when I hide the Layer 1 in the Paint room I get no distortion in the mesh on Layer 0 or in the sculpt room. I have tried it with Smooth Object checked and unchecked and with Snapping off and on, still no joy. I am on 3.5.19A for the Mac as we have not upgraded from 10.5 at school. Any ideas?

Excelsior!

Eric Kunzendorf

Jacksonville University

Also noticed my low poly mesh looks like this when I merge into Paint with Ptex. My mesh in the retopo is clean, with no n-gons or tris. It is open, however, could that be a problem?

post-3125-0-31699800-1320794850_thumb.jp

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Hi Andrew,

I am getting a Mailer Daemon error. It seems the file is too big even zipped. Is there any way to allow a larger file?

Excelsior!

Eric Kunzendorf

Jacksonville University

If you zip the file, it will probably go through...as long as it is under the maximum size limit. Also, PTex is essentially a more elegant Auto-UV toolset, so laying out UV's isn't necessary. Use one or the other, not both.
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Hi AbnRanger,

Thanks for responding! I did zip it, but even zipped it was above the file size limit.

Hmm, you bring up an interesting idea. My original idea was to use Ptex to paint textures onto the retopo'd and UV'd model. The female head model above needs to have finer hair than what I can create in Voxels; Ptex gave me what I want. So if I just want to merge for Ptex, I can delete Layer1 with the distortions and paint from there. But I would like to be able to extract the color, shaders, textures from the voxel room.

Given that this character is going to be animated, I will need to have a model that is UV mapped. But if you are suggesting that the UVs I've already created might be interfering with the Ptex merge process, I'll have to get rid of them and try it. That way, I could merge to Ptex with the voxel textures, UV map and export separately and hopefully use the texture baking tool to take the Ptex textures and map them to the properly UV'd model. When I get in to my machine this afternoon, I'll try that and report back. Thanks!

Excelsior!

Eric Kunzendorf

Jacksonville University

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