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Stairs are created when straighten image.

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first of all, great release, hope this will be a success because i really hate the PS subscription model. Anyways i found a bug. Had just a short look but i couldn`t find it, hope i will not create a duplicate (i know how annoying this could be, because i worked as a QA Tester for company that also created Photosoftware).


Steps to reproduce:


1. Open a RAW file (Canon 5 D M3).

2. Press Develop and choose the Crop Tool.

3. Press Straighten and draw a line for straighten the image.

4. Zoom in and observe the image.



In my case i can see some kind of stairs in the horizon and when i observe it it seems like the whole image is effected (regular appearing Tiles over the whole image (see attachment). 

This issue just appears inside of AP and doesn't happen in the exported image.



MacBook Pro (13-inch, Mid 2012), 2,5 GHz Intel Core i5, 8 GB 1600 MHz DDR3, Intel HD Graphics 4000 1024 MB.


If you need additional informations just tell me.





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Could you check in Preferences - > Performance and see what "View quality" is set to?


We will default to "Nearest Neighbour (Fastest)" for machines with 2 CPUS or less - you can change it to Bilinear, which will get rid of the stairs :)





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that resolves the issue. View Quality was set to Nearest Neighbour. Set to Bilinear and stairs (tiles) are gone.


Thanks a lot and great, fast support!





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