After upgrading to 10.13.5 with latest Nvidia drivers the problem persists. Any idea if I could do anything else? Would 2.8 use a newer version? I guess EEVEE would be even better anyway for that type of shadings.

I just checked the project using another Windows drive that I had around and it seems to be working fine. So I guess the problem is as you said with the OpenGL in my OSX version or something. Will update my system as there is a new one and see if the new drivers solve it. Any idea about what I could do in the case that would not solve it?

I just checked the file using another iMac and the Matcap looks correctly in Material shading. OSX 10.10.5 with Ati Radeon HD 2400 XT. I was wondering if this has to do with Nvidia drivers as you said. Will check the other person graphics card brand as he reported not working on Windows.

The project as stated was tested by another user using a PC on windows and he had the same result while he could have the right result using a Macintosh. I was hoping for you or someone else to download the file and test if you could replicate the problem. My graphics card is up to date and I never had any problem visualizing everything as the way things should look like.

Its highly likely that this bug is specific to your hardware/driver configuration. These kinds of display issues are often caused by OpenGL driver bugs.

Having the same issue as everyone else- the denoising filter turns all tiles black. Deactivated it and everything rendered fine.

Hi there! I make a simple add-on, which changes the mouse cursor to the default arrow by timer.
It's my first python script and first blender add-on, if someone can do thet fasterer, right and better. Please, it will help a lot. This bug in MacOS is terrible, blood from the eyes when I see a huge cross in edit mode. :)

I just tried Blender 2.79b on my mother's 2014 iMac with High Sierra installed.

My setup:
macOS 10.13.4
mac mini late 2012
blender 2.79

Oh, i'm sorry for the duplicate :(
Thank you so much!

Thanx for reporting back!
Just noticed this has been reported before, see T53648.

sorry that I didn't read the bug form properly.
will post a diff next time :)

Tasks about build issues aren't allowed as outlined on the bug report form.

Your welcome @Brecht Van Lommel (brecht).

Thanks for the patch, the fix I committed was different since we now need to exclude both bottom corners of the window.

Thanx for investigating and raising awareness.

Applied rBb4e8d33f1184837705255a19a5e513aa4aad96ab

Holding this one off till we drop msvc2013, it's just not worth the hassle.

Poke.

Include unistd.h on Apple platforms as well

Windows lacks this header, so this will have to be guarded by an #if defined, you can probably extend the one 3 lines below your patch

And .... now that I am home, I just tried playing the rendered mp4s above on my pc and they play fine (so long as I don't use Quicktime). So it is not a Blender issue but a Quicktime playback issue on the macs at the center. I feel like an idiot for not having tried that before.

Hi - please read my last comment below first, before reading this one ...

Thank you for the report. Currently we are aware of many issues in 2.8 and actively working to fix them. But since replying to reports takes time, we have decided to limit bug reports to module team members.

Hi - the media/art center is closed today for Easter Monday, so I will have to go there tomorrow to generate the bug output.

More than a week passed without a reply.

This bug excists for more than 8 months... what about a solution?

I will send you debug output and new zip file on Monday

I don't have permission to install anything on the machines at the media/art center, I just teach there sometimes. So I can't install 2.79b.

@Trudy Wohlleben (trudyvfx) Yeah that was for you. Run blender with debug options on:
open Terminal and start blender with:

doesn't seem like the attached .blend is using any of the video files, (or i'm not bright enough to figure out how to reset the paths) if you could attach a .blend file where we just have to hit 'render animation' to get the problem to show that be appreciated.

Is this question for me (probably not but answering just in case)?