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Red Screen on Mojave

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I have two iMacs with a similar setup: both are made within the last few years and have a second monitor and a Wacom Cintiq. The main difference between the two is that is on Sierra and one is on Mojave.

On the Sierra Mac, with multiple monitors, everything works out great; I can use 3DCoat on any of the monitors. :good2:

However, on the Mojave Mac, when I move the 3DCoat window to either my second monitor (an Apple monitor) or Cintiq monitor, the window goes either completely or mostly red. :huh:

What's additionally unusual, is in the screenshot below, it still somewhat behaves properly, though offset vertically. I.e. to click on the "File", "Edit", "View", etc. menus, I have to click near the top of the screen in the red bar where the menus really should be.


Screen Shot 2019-12-05 at 3.17.58 PM (3).png

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There are several possible reasons for such problem:
1. Partial quarantine. To check that clear the quarantine flag from the whole "3DCoat" folder:
$ xattr -dr com.apple.quarantine /Applications/3DCoat-4.9.02
If you will download latest http://www.pilgway.com/~sergyi/3DCoat/3DCoat-4.9.04.dmg then:
$ xattr -dr com.apple.quarantine /Applications/3DCoat-4.9.04
In case you will download more stable http://www.pilgway.com/~sergyi/3DCoat/3DCoat-4.8.40.dmg then:
$ xattr -dr com.apple.quarantine /Applications/3DCoat-4.8.40
2. "3DCoat" was unable to load some files. "3DCoat" folder should be placed on disk with case-insensitive file system. See format of your hard disk: Finder > Go > Computer > Macintosh HD > Get Info > Format: ???? "3DCoat" doesn't support case-sensitive file system under macOS. 
3. Setting files of "3DCoat" have been corrupted. Rename your user data folder "Finder > Go > Home > 3D-CoatV48 (or 49)" into something like "-----3D-CoatV48 (or 49)". Then start "3DCoat" which will create new user data folder "Finder > Go > Home > 3D-CoatV48 (or 49)".
P. S. Also make sure that "System Preferences > Users & Groups > Current User" has status "Admin". And try to enable dedicated AMD graphics by unchecking System Settings > Energy Saver > [   ] Automatic graphics switching. Only dedicated high-performance graphics support all OpenGL features in hardware.

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Thanks for the reply!

Those didn't seem to work for me. I put both additional recommended versions on and cleared the flags in terminal and walked through all the steps, but it still acts the same.

It does seem to be graphics-related in my mind. My work iMac Pro has the Radeon Pro Vega 64, with no onboard, so no graphics switching.

When it happens, I can move the window back to the main monitor on the iMac without restarting the app, and the interface reappears, it just will not work on the additional monitors.

If I close 3DCoat down on one of the additional monitors and restart it, it will sometimes start up back on the additional monitor and will work fine unless I attempt to resize the window or move it, in which case it will go back to the red screen. If I resize it a little bit, I get a little bit of red, if I resize it a lot, I get a lot of red, but I can never go back to a clean interface. Also, if I move it to another window I cannot get the interface back on the additional monitors (but I can on the main).

I would blame it on the main monitor being a 5k retina monitor and the other monitors being lower resolution, but my iMac at home has the same setup and it does work fine on all monitors on that system.

There is potential for my art department to switch over to 3DCoat, but I need to make sure it's going to work well for us first.

I appreciate your assistance with this!

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22 minutes ago, SERGYI said:

Testing 4.9.31 under macOS. Sculpting, retopo, baking, and smart materials painting are working.

3DCoat 4.9.31 macOS.jpg


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