Transparent color reveal white shapes

[Ull 0]

Hello,

I encountered a strange behaviour in affinity designer :

     1. On a blank canvas I create a blank square

     2. Then, I create another square with a opacity of 50% for example.

     3. The shape of the white square is now visible :

 

If we export to SVG or PNG, we don't see the artefact.

 

[SPaceBar 39]

Hi @Ull Welcome to the Affinity forums. I've just recreated this and it looks like it is to do with display settings.

What do you see selected for Display if you go to Edit from the Menu > Preferences > Performance............?

[Ull 0]

Hello

 

[SPaceBar 39]

How about if you go to Menu > Document > Convert Format / ICC Profile > Under Profile.......... What is selected? Can you also tell me what screen you are using please?

[prophet 24]

 I I can confirm this behavior.

Designer 1.8.3
iMac, Mojave 10.14.6

[Ull 0]

11 minutes ago, SPaceBar said:

How about if you go to Menu > Document > Convert Format / ICC Profile > Under Profile.......... What is selected? Can you also tell me what screen you are using please?

 

As listed my screen is a S27R75xQE (Samsung Space Monitor). If I select it, it resolve the issue !

 

Thanks !
 

Was this a bug or really just a bad setup from my part ? I couldn't find any help on this issue on the internet/forum, so that's why posted this !

 

[SPaceBar 39]

Hey @Ull we did manage to recreate it here by changing those settings but I will hopefully be able to answer your question tomorrow after a bit more research.

 

[SPaceBar 39]

Hi @prophet I managed to recreate this on my iMac, can I ask you which iMac model you have?

 

[prophet 24]

@SPaceBar
iMac (Retina 5K, 27-inch, 2019)
3 GHz Intel Core i5

[SPaceBar 39]

Thanks @prophet I was able to work around this on my work iMac which is the same as yours by doing this:

• On the Menu bar > Click Affinity Designer > Preferences > Display: Does it say OpenGL? If so choose Metal > It asks you to restart the software.

[prophet 24]

Already metal