Scaling problem with rotated smart objects

[Simon-Colley]

Create a smart object from several shapes

Use the smart object flipped vertically in another psd as part of an icon.

Use generator to generate 50% 100% and 150% images (layer mask used to define bounds) Inspection of generated images shows incorrect scaling / stroke weight

n.b.

• This does not occur if the smart object is not flipped
• The layer mask does not affect the outcome (disabling still produces the same problem)

[Simon-Colley]

Okay some more info:

The scaling issue seems to be with stroke width on the rotated smart object. It appears as if the stroke width is not scaled when the images are generated from the rotated smart object. The stroke is correctly scaled on the non-rotated smart object.

For example using 2px centre aligned stroked L shaped smart object rotated and non-rotated :

Produces correctly scaled strokes for the non rotated:

And incorrectly scaled strokes for rotated (flipped vertically):

BTW Happy to provide test file if needed.

[joelrbrandt]

Thanks for the detailed bug report, @Simon-Colley ! Hopefully we'll have the engineering resources available soon to look deeply into masks, bounds, and scaling.

[kaptankorkut]

+1

[imaderyc]

with scaling, I think it's similar with internal bug 3909740

[chadrolfs]

Was able to repro. @mcilroyc @pineapplespatula see testfile https://www.dropbox.com/s/f9mz7a181tiqzfv/iconSO-test-flipped.psd?dl=0

[pineapplespatula]

Photoshop checks for affine transformations to determine if it is safe to modify strokes may be failing in this case.