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Chris Ulrich avatar image
Chris Ulrich asked ·

Issue Saving Images While Working with Arnold

Something I've been having an issue with on and off with Arnold is I can't save texture images while adjusting them in Photoshop. Most of the time things work as expected; Create a material and set a texture for the base color, edit the image file with Photoshop and save it out, go back into Maya which will then have the material reload. Works great because I can edit on the fly and then check in render seamlessly.

However, I've encountered something where Photoshop won't save the image file because it's still in use. I've tried a few different things but the only thing that seems to work is to close Maya. Then I can save the image file again. I'm not sure if this is a bug or possibly a setting that needs to be changed (in Maya or Photoshop), but it slows me down regardless.




Any help would be appreciated! I'm going to try resetting my preferences next but hopefully there's a better solution out there. I've recently updated to Maya 2020, but it's an issue I've had in 2019 as well.

texturematerialimage
imageexample.jpg (14.3 KiB)
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Mr. T avatar image
Mr. T answered ·

Do you have automatic Mip Mapping or Tiling enabled?

If so try to flush caches

https://docs.arnoldrenderer.com/display/AFMUG/Flush+Caches

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That'll do it, thank you for your help!

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Alex Gansert avatar image
Alex Gansert answered ·

On the file node, uncheck "Auto-generate TX Textures" while working on Textures.


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Frank Hull avatar image
Frank Hull answered ·

You can disconnect the map node from the material and reconnect after saving the PS file. Far from ideal but better then shutting 3ds max completely.

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Chris Ulrich avatar image
Chris Ulrich answered ·

I have a small update for others who might run into this issue and don't want to close Maya every time.

You can break the connection of the image or texture you're editing outside of Maya, re-update the Arnold scene, and that will 'release' the image file so you can edit and save over it again. Afterwards, you will have to remake that connection and re-update the Arnold scene again to see your changes. Not the best work around, but for me I'd rather not have to close Maya every time.

If anyone has anything better, please add it here.

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Have you tried flushing the cache?

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That helps me out a lot, thank you very much for your reply!

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Stephen Blair avatar image
Stephen Blair answered ·

If you're using tx files, you can edit the original because Arnold has the tx file loaded.

But on Windows when a process has a file open, you can't save over it.

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Thank you for your reply.

Does Arnold automatically switch out the normal texture files for .tx files? I know with past projects I've been able to edit textures and reload them without difficulty, but for some reason this current project has really thrown me for a loop.

I've tried going through the texture manager and even assigning the .tx files to each material, but I'm still getting the same issue. I'm going to play around with a new empty file and see what happens there.

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By default, MtoA will automatically create and use tx files. So unless you've changed that in the render settings, tx files will be used.

If you increase the Arnold log verbosity to at least Info, the log will include a list of all texture files used.

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Alright, I got that set up and it looks like it's working fine. Still not able to edit my images on the fly and not sure why. I'll keep trying different things when I get the chance.

Thanks again for your help.

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Wojciech Ogrodnik avatar image
Wojciech Ogrodnik answered ·

Same issue here with 3ds Max and Photoshop files... Files are locked and can not be saved. Same thing helps - closing 3ds Max. Started happening after a recent update to 3ds Max 2020.3 and Arnold 6.

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Have you tried flushing the cache?

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