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Posted

Greetings all.

I was experimenting with Perlin noise in AP 1.10.4.  I'll try to upload the file but here is the issue with repeatable steps for me.

Create a new document (8x10 photo)

Try to use Perlin noise in the blank document (nothing is available; the menu item is unavailable.  None of the filters should be available)

Create a shape like a rectangle and select that layer (it should explicitly say it is 'Rectangle').

Try to use Filter->Noise-> Perlin Noise

Adjust the settings and apply.

For my attempts, the rectangle gets destroyed and the pixel layer now has the Perlin Noise application as a pixel layer across the entire dimensions of the document.  Depending on the blend mode, there may be a ghost vestige of the rectangle embedded in the new/modified pixel layer, but the rectangle is no longer a real element.

Try different filters on a similar rectangle layer.  Each other filter retains the editable shape or dimensions of the original rectangle even if these other filters are applied destructively.  Only Perlin Noise destroys the original rectangle shape and dimensions as it converts the layer into a pixel layerFilter Test.afphoto.

575454515_FilterTest.afphoto

Posted

Works as designed and documented in help (from iPad, same applies to Desktop)

Perlin filter replaces the former layer

76970F72-F78C-48AB-B4E2-CC6E9081139A.png

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

Posted

If you want a non-destructive perlin noise filter, simply use the procedural texture filter and select the perlin noise preset. When nested to the rectangle, it will be restricted to the area.

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

Posted

The replacement is fine, but the resulting layer isn't consistently the dimension of the document set up.  More searching shows the vestiges of the previous layer is due to the blend range, so that solved that.  The size, however, is not the same as the document set up.  In this case the 8x10 photo dimension.

It seems baffling and inconsistent still.  I fiddled with the same document; created a new document and the Perlin noise pixel layer is unrelated.  Let me fiddle some more.

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