UDIM Color Fringes

[interelectronix]

Hi all

I am converting a cycles material to octane and run into a strange issue. The UDIMs look perfectly fine in Cycle but have a strange color "fringe" when using the same textures in Octane. Any idea would be greatly appreciated.

[linograndiotoy]

Can we see the UDIM shading setup in Octane?

[interelectronix]

Thank you for your help Lino.

[linograndiotoy]

Any chance you can share your project file with me?

[interelectronix]

It is a 320MB File. Do you have a non public upload location.

[linograndiotoy]

If you have onedrive or dropbox you could upload it there and then share the link with me (privately if you want).

[interelectronix]

Hi Lino

I sent you a PM

[linograndiotoy]

Thanks!

I'll check it!

[interelectronix]

The color fringes are gone with 29.16 and using the node tree you supplied.

But panning/rotating/zooming or changing the material node tree crashes the Render Server.

This is the last message displayed.

When the message is displayed Triggering Shaded Mode and then engaging the rendered mode crashes the render server.

[interelectronix]

It looks like the crashing is not related to the UDIM Alpha fix. There is a crashing tendency on 29.16 on OSX. The crashing is happening with or without rendering nodes.

I have not found a clear correlation to reproduce it.

Is there any kind of log file that I can upload ?