Possible Z-fighting background images using Depth = Both #60484

System Information
OSX 10.11.6
Intel Iris Pro 1536 MB

Blender Version
2.80, 3c3d80ea22, 2019-01-08 23:33

Short description of error
It looks like the new method for background images has a small issue when Depth is set to Both. It looks like there is some kind of Z-fighting or normal issue perhaps. It looks like noise, weird effect

Exact steps for others to reproduce the error

Use any scene or new scene as long as there are object in the viewport
Add image as Empty
Use any image and place it around an object or in between
Now hovering the mouse over the image or moving the scene will show a weird noise kind of effect. Sort of like normals or z-fighting
setting Depth to Front or Back solves this "issue"

Ive attached a screengrab of this

Added subscriber: @RomboutVersluijs

#60846 was marked as duplicate of this issue

Added subscriber: @JacquesLucke

Can't reproduce it on my machine right now. Could you create a .blend file that shows the bug (on your machine)? Make sure to pack the image into the file.

Here is a file

Image-ref-depth-issue.blend

Added subscriber: @fclem

Looks fine when I open it, so it is probably gpu/os related..
Are your drivers up to date?

I dont have supported GPU, nothing to update. See first post for Hardware. Its an Intel Iris Pro.

Is the setting still the same? Thinking about it, why does it show being behind a object, what is default when you can choose front or back??
Is front default or is back default?

I see perhaps the cause now. If i change MultiSample under Preferences > General > OpenCL > MultiSampling from None to 2 or more it gets less noticeable.
But still shows very faint,.

Before

After

Added subscribers: @santbg, @brecht, @WilliamReynish

Added subscriber: @elbox01

This problem doesn't just appear on my mac when I reported it. I just found out that it also appears on the work computer.

BugWindows.blend
System Information
Operating system: Windows 10, Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz 3.40 GHz, 16,0 GM (RAM)
Graphics card: Intel(R) HD Graphics 4600
Blender Version
blender-2.80-936014ea8c74-win64, 2019-03-12
Short description of error
When dragging an image to the ViewPort and placing an object in front of or behind it presents a noise in the image
Exact steps for others to reproduce the error

Start Blender
Drag an image to the viewport
I place a plane or a cube in front or behind and noise appears in the image.

My guess is that the default none. For me it works when i choose front or back. Perhaps this is the issue, the old version had only 2 options, this now has basically 3.

Mac Version: blender-2.80.0-git20190321.9105e1d08467-x86_64 (2019-03-21) work fine for me. Check it up

I used this one, edbf15d3c0, master, 2018-11-28, from Blender and seems to work fine now :)

https://www.dropbox.com/s/w4s8xmgmq7dylsf/Z-fighting-or-normal-issue-ref-images-solved.gif?raw=1

does using the "use alpha" option also work?

Yes, hardly visible due to the blunt Axis colors. But it seems to work.

Not sure why, but looks like Axis colors are slight transparent orso. They are less vibrant than the color input in the Theme panel

Changed status from 'Open' to: 'Resolved'

Ok the axes are going through but that's a side effect of alpha blending. So main issue is resolved.

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Possible Z-fighting background images using Depth = Both #60484