Layers disappear when I zoom in.

[HuwR]

I’m an illustrator. I have a document made up of whole range of cartoon characters their heads and bodies on separate layers. Mac OS.

At 50% all can be seen on screen. Anything at a greater zoom (51%+) three character bod layers disappear. Zoom out they return.

If you duplicate they behave in the same way. 

if you try to print a hard copy the 3 layers are absent.

If you export to JPEG/PSD/PDF etc they behave in the same way.

Transferred to an iPad (airdrop) same problems. Any ideas?

[MEB]

Hi @HuwR,
Welcome to Affinity Forums
Do you mind uploading the file to be inspected please? I can provide an upload link if you wish to keep the file private - just let me know.

[HuwR]

Hi MEB

Thanks for getting back to me. I have attached the file - no need for privacy. A friend took a look at the file and felt that somehow some sort of mask is having an effect. One neither of us can detect.

The closer you zoom-in the more elements disappear - characters at front of car disappear. Zoom out they re-appear. The same layers disappear on printing too. 

I have messed around with RGB and CMYK and Greyscale imported images in creating the work. I have also pasted images from the web as a guide to create caricatures - then deleted them.

A3 in size. 

Best of luck - any suggestions welcomed.

Huw

A3 PJ.afphoto

Edited February 16, 2022 by HuwR
Thought an @ was needed.

[markw]

I can open your file, though it took longer to open than I was expecting…?
And right from opening, the three “body” layers in question are empty, no content.
Screenshot of the Layers; Non and Body Non.
So why you can see content in the effected layers at different zoom levels is a bit of a mystery to me?
Do you still see in your Layers panel the correct thumbnails?

[Old Bruce]

You have some weird stuff going on with the Alpha channels on some layers. Makes me wonder where these layers came from.

[HuwR]

@markw

Layers appear as normal on my machine. When I zoom in and out they appear as normal in the layers panel. As I said they disappear in print preview.

Thanks

Huw

[HuwR]

@Old Bruce

 

My friend - more savvy than I am -  took a look and he noted something  similar.

All the layers were created by me or by cutting and pasting images from the web which I used as a guide to create caricatures. They were binned once I had no further use for them. e.g. I borrowed a photo of Gareth Bale to create the caricature on another layer using drawing tools. Then the photo of Bale was binned.

I also did the same to "steal" patterns for the blue dress and for the sea texture. These layers were kept in their modified form.

I have very limited understanding of channels and masking - sorry.

Thanks for taking a look,

Huw

[NotMyFault]

It is a clear rendering bug to me.

e.g. Disabled all layers except PJ.

Content disappears when zoomed between 63 and 100%.

effect depends on settings and tools used.

seems to be a combination of several parameters (e.g. cmyk, 3.2 degree rotated, … ) to trigger issue.

When you rotate to 0, issue is gone.

you can clearly see that is a rendering bug in the video when comparing the navigator thumbnail vs. layer thumbnail vs. canvas rendering. 

alpha is totally ok, except one minor issue totally unrelated to the rendering bug:

i assume you painted the edge lines first (in black) and then used a selection and the fill tool to fill the areas inside the edges. Unfortunately, the partially transparent pixels where not fully selected, and remained partially transparent (visible at the green filled mountain line). You can avoid this issue by tweaking the selection parameters (99% tolerance, but keep continuous checked)

 

[MEB]

Thanks for the file and report @HuwR. I'm logging this/passing the file to development.

 

[HuwR]

Hope it helps.

The suite of Affinity software is superb.

Best wishes 

Huw