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Copy of Live Perspective layer is different from the original

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I'm not sure whether to report this as a Photo bug or a Designer bug.  I found it using Designer, but it looks to come from Photo.

For a drawing in Designer I needed several circles drawn in 3 point perspective.  So I drew a cube in perspective then drew a circle and converted it to curves.  Then chose Edit in Photo, created a live perspective of the circle so that it just fit in one face of the cube.  Then moved back to Edit in Designer.


I then made a copy (cmd+c and cmd+v).  Much to my surprise the bounding box and image of the original circle was in the same location, but the perspective was smaller and offset considerably.  I changed the color to blue just to keep track of circles.


The Transform panel shows them as being in the same location.  1151714411_ScreenShot2022-08-09at9_56_13AM.png.86bb572d7890d123ff7046fd174ab3a7.png

In order to get the copy to pretty much equal the original I had to make the bounding box much larger, add some angle to it and move it over.


I tired it again, making the new copy purple/pink.


Again the bounding box and circle's image was the same location as the layer copied, but the perspective was offset, smaller and slightly rotated.

I found I got the same results in Photo.  But if I created a new live perspective from a copy of the circle then the results were the same.  Shouldn't each copy of a perspective be the same?

Cube temp2.afdesign

I'm running the latest released versions of Designer (1.10.5) and Photo (1.10.5) on a iMac (Retina 5K, 27-inch, 2020) with Monterey version 12.5.

I do find that if I make multiple copies of the original they are all offset, shrunk and twisted the same.

iMac (27-inch, Late 2009) with macOS Sierra

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17 minutes ago, Gear maker said:

I'm not sure whether to report this as a Photo bug or a Designer bug.  I found it using Designer, but it looks to come from Photo.

Seeing as how Designer does not have any filters it would be a Photo bug.

Mac Pro (Late 2013) Mac OS 11.7.1 
Affinity Designer 2.0.0 | Affinity Photo 2.0.0 | Affinity Publisher 2.0.0 | Beta versions as they appear.

I have never mastered color management, period, so I cannot help with that.

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Hi @Gear maker
We have been able to recreate this in Designer and Photo following the set of steps below, can you confirm if this is what you did:

1. Create an Object,

2. Go to Layer > New Live Filter Layer > DIstort > Perspective

3. Mask Filter to Object

4. Do not set Perspective filter parameters at this point, Select Object, move and resize.

5. Set Perspective filter parameters and set Destination so object is distorted. 

6. Copy and Paste object.

7. Observe Bounding Box stays in same location, but object has been resized and moved. 

We have found that the step in Bold is what is causing the issue to occur. If you move and resize the object before the filter is applied then this does not occur.  

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1. I created an object in a drawing I had been working on for a few hours in Designer, a circle.

2. Made it into a curve.

3. Did an Edit in Photo from the menu.

4. Selected the object I needed to change. Clicked on the symbol at the bottom of the layers panel to create a Live Filter, Perspective.

5. I didn't make any changes to the Live Perspective panel.  Just moved all 4 corner nodes of my object.

6. I clicked the red exit light in the traffic signal of the Live Perspective panel.

7. Selected Edit in Designer from the menu.

8. I moved and resized the ellipse to fit in my drawing.

9. Copy and Paste object to move it to another position.

10. Observed Bounding Box stays in same location, but object has been resized and moved and rotated slightly from that of the original. 


If I leave out the Bold line I don't have a problem (line 10. does not happen) when I recreated this just now in a new drawing.  But adding the Bold line triggered the problem.  Sorry, I'm not sure what you mean about setting the Perspective filter parameters.  As I mentioned above I used the default parameters in the Live Perspective filer panel. Shown below, and never changed them in AP or AD.  I did find that if I didn't do line 7 and stayed in Photo I had the same results in the process.



I hope that helps.  In my drawing I found that having 12 circles modified by a Live perspective filter caused such a high CPU usage that for the first time in the year I've had this computer I could hear the fan running at high speed.  So I used the results of the live perspective filer to create an ellipse the size and shape it gave then deleted the results.  My computer was much happier with this.

Thank you.




iMac (27-inch, Late 2009) with macOS Sierra

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