Issue with UVs read back in Unity

[lalalune]

Hello @ponchio ! Really love your work!

We are having some funny business with UVs. I am sure you are busy, but maybe if you have a second to offer some insight into where to look to fix this problem --

We are using Corto in our volumetric player package here: https://github.com/xrfoundation/universalvolumetric

So on the web, we have volumetric video working amazingly. You can see that here: http://wildcapture.co/volumetric.html

But in the Unity build the UVs are really messed up:

I would be happy to try to solve this myself, but if you have any pointers to what it may be / where to look --

One note, I compiled the Unity plugin for Mac. I will need to test with plugin builds on the other targets, but can't at the moment. Of course WASM seems to work everywhere.

Unity code is here: https://github.com/XRFoundation/UniversalVolumetric/tree/main/unity

Thanks for the help!

[ponchio]

I can't really debug or test unity now. but I strongly suspect the problem is with the normals, not the UV:

line 82 in https://github.com/cnr-isti-vclab/corto/blob/master/unity/CortoMeshLoader.cs seems a likely culprit: the normals are recomputed and fail on the seams.

I got a student to write this plugin, could you try to uncomment the line (I suspect there might be some issue with normal format or such hgence it was commented) and test it?

[lalalune]

Yes! Thank you, I will report back :)

On Tue, Jun 22, 2021 at 4:18 PM Federico Ponchio @.***> wrote:

I can't really debug or test unity now. but I strongly suspect the problem is with the normals, not the UV:

line 82 in https://github.com/cnr-isti-vclab/corto/blob/master/unity/CortoMeshLoader.cs seems a likely culprit: the normals are recomputed and fail on the seams.

I got a student to write this plugin, could you try to uncomment the line (I suspect there might be some issue with normal format or such hgence it was commented) and test it?

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