display not correct

[Clayton King]

This is a nitpicky but frustrating issue in Designer 2. My page width is 2.5" and the pink rectangle is 2.5" wide. The display shows a thin white line on either side.  Testing proves that this does NOT happen in Publisher, but DOES happen in Photo.

In both cases, it is not until I zoom in approximately 1100% that the white lines go away.

Has anyone else encountered this?

 

[Pšenda]

Artboard position and size is "Pixel perfect"?

[laurent32]

2 hours ago, Clayton King said:

Has anyone else encountered this

Yes , this is annoying, we have to zoom in to check…

[Callum]

Hi Clayton, 

Please could you confirm if you have tried Pšenda's suggestion found above?

Thanks
C

[Clayton King]

I don't know what pixel perfect means.

 

[NotMyFault]

it means the following:

• resize document to use pixel as units
• in settings, choose 6 decimal digits for px to be displayed
• use the mode tool and the transform panel to check lady relevant layers and their position and size. It should use while integer numbers, without fractional digits (except 0) after the decimal separator. Any fractional digits could cause those thin lines as side-effect of anti-aliasing. 

There are countless older threads discussing this topic. So you are in good company if you don't like this behaviour. If you want it to get changes, search for one the the current improvement requests and add you vote there.

[user_0815]

I'm having the same problem that there is an outline whenever two overlapping shapes have the same boundaries. For example two rectangles of the exact same size and position. In the attached screenshot there is a lighter square on top of a darker square. At the edges the darker square is visible although It shouldn't.

Setting all pixels to ".0" does not solve that.

[NotMyFault]

1 minute ago, user_0815 said:

I'm having the same problem that there is an outline whenever two overlapping shapes have the same boundaries. For example two rectangles of the exact same size and position. In the attached screenshot there is a lighter square on top of a darker square. At the edges the darker square is visible although It shouldn't.

Setting all pixels to ".0" does not solve that.

Did you check the artboart containing these objects, too?
Can you upload the file?
Which view mode do you use?

Did you check if the lower rectangle has a stroke, or layer fx which might increase its size?

There are many more things what could cause this obsetvation.

[R C-R]

4 minutes ago, user_0815 said:

I'm having the same problem that there is an outline whenever two overlapping shapes have the same boundaries.

Are you sure they both have exactly the same pixel dimensions?

Can you provide a sample file with just those two shapes at the same places as in your screenshot? 

[user_0815]

9 minutes ago, NotMyFault said:

Did you check the artboart containing these objects, too?

Yes.

 

9 minutes ago, NotMyFault said:

Can you upload the file?

Yes.

 

9 minutes ago, NotMyFault said:

Which view mode do you use?

IDK

 

9 minutes ago, NotMyFault said:

Did you check if the lower rectangle has a stroke, or layer fx which might increase its size?

Yes, none of them has an outline. It also happens with any other object.

 

9 minutes ago, NotMyFault said:

There are many more things what could cause this obsetvation.

Although, as a user I wouldn't expect such a result. 🧐

Test Square Outline.afdesign

[user_0815]

9 minutes ago, R C-R said:

Are you sure they both have exactly the same pixel dimensions?

Can you provide a sample file with just those two shapes at the same places as in your screenshot? 

Yes, see above post.

[R C-R]

The darker rectangle in your group has a 3.832 px stroke applied to it.

[user_0815]

Yes it has, sorry. I've been trying to apply different strokes in order to make it display correctly.

However, removing it doesn't make a difference as (it was inset).

After testing a bit further I found out that it occurs whenever the zoom is non-100%. At 100% zoom it looks as expected. Zooming in or out makes the line show again. Can anyone else reproduce that?

[NotMyFault]

These thin edge lines are most like rendering artifacts in Designer, caused by the performance oriented mipmaps method. On iPad, they are only visible at certain zoom levels, but not at exactly 100% or 200%.

If you switch view mode to pixels, or zoom to 100% or 200%, these artifacts vanish.

Using „split view“ and vector / pixel helps to identify this situation.

We have more reports complaining about this issue, Affinity consistently rates this as „by design“.

 

[NotMyFault]

When you create a screenshot, open in Photo, and zoom in quite a bit you see these lines are always 1px wide, no matter what zoom level what’s used in Designer. Another clear indication of a (by design) rendering artifact. The actual data and exports will be ok.

[NotMyFault]

Maybe related

Or have a look at older posts

https://forum.affinity.serif.com/index.php?/search/&q=Mipmaps&quick=1

 

[user_0815]

Thanks for clarifying.

The reason I reported this is that I sometimes can't tell the difference whether it is a rendering artefact or an actual stroke applied and I would prefer it to be more precise (or find out whether I'm doing something wrong).

[Clayton King]

Well this certainly opened up a lot of discussion! For what it's worth, it doesn't happen on my Mac - only my Windows PC. Both are highly capable rigs, so I don't think it's a hardware issue. In fact, my PC is more pimped out than my Macbook. Odd...

 

6 hours ago, user_0815 said:

Thanks for clarifying.

The reason I reported this is that I sometimes can't tell the difference whether it is a rendering artefact or an actual stroke applied and I would prefer it to be more precise (or find out whether I'm doing something wrong).

Exactly so. It's the reason I made the post to begin with. I'm not kicking a dead horse here, but Affinity's user interaction programming is sometimes a bit hinky IMO such that things are selected when I don't think they are, vice versa, last stroke used is remembered, etc. So when I see these lines when looking at the entire artboard, I don't trust that it's not really there. Further, I have also done designs where there are oddly shaped objects that result from intersecting two shapes for the purpose of having them 'entertwined' like in the attachment. Those shapes have also had outlines on them until I zoom in quite close.

[user_0815]

Just discovered that this border shows even if the on-top shape is 2 pixels larger. But only if I drag it on to the other curve. 

In other words: If they are just two regular layers on top of each other, no border is visible. Otherwise yes. Unfortunately it's also visible in the exported pdf.           

[NotMyFault]

8 hours ago, user_0815 said:

Just discovered that this border shows even if the on-top shape is 2 pixels larger. But only if I drag it on to the other curve.

If you nest a layer as child, it gets clipped to the shape of the parent layer. Every pixels outside the parent edge is cut off. So effectively it sized will be reduced again, and the observation is to be expected.

In addition, you may get anti-aliasing at edge pixels, and the performance setting about „exact clipping“ may complicate things further.  

[firstdefence]

On 4/5/2023 at 6:34 AM, NotMyFault said:

We have more reports complaining about this issue, Affinity consistently rates this as „by design“.

I'd say in this instance by design means "We don't know how to fix it"

[user_0815]

1 hour ago, NotMyFault said:

it gets clipped to the shape of the parent layer

Of course I know that, but totally forgot in that moment... 

52 minutes ago, firstdefence said:

I'd say in this instance by design means "We don't know how to fix it"

Yes, so I'll leave this topic as it is and find a way around it when necessary. 

[NotMyFault]