Color blending bug

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Herbert123
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Color blending bug

Post by Herbert123 »

Not sure what is happening here, but the red causes rendering issues.
2024-07-12 13_31_34-#1.jpg
I attached the PLD.
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der_fotograf
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Re: Color blending bug

Post by der_fotograf »

No problem here on macOS Catalina:

Screenshot 2024-07-12 at 22.50.29.jpg
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shijan
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Re: Color blending bug

Post by shijan »

This is how it looks on macOS 10.14.6. Problem remains in exported image.
UPDATE1: Problem disappears if switch Document to 16 bit. In your PLD you use Isolated group with linear gamma ICC profile. :!: Linear gamma should never be used in 8 bit because it always will create artifacts and banding :!:
UPDATE2: Also seems problem due Gaussian Blur in HSV mode.
Image
Last edited by shijan on Sat 13 Jul 2024 00:40, edited 2 times in total.
PhotoLine UI Icons Customization Project: https://www.pl32.com/forum3/viewtopic.php?f=3&t=6302
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shijan
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Re: Color blending bug

Post by shijan »

And also seems this bug due vector color represented in HSV mode. If change Hue from 0% to 1% problem disappears
Image
Image
PhotoLine UI Icons Customization Project: https://www.pl32.com/forum3/viewtopic.php?f=3&t=6302
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shijan
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Re: Color blending bug

Post by shijan »

I simplified your example, and seems this bug happens only if in 8-bit document Gaussian Blur in HSV mode placed inside vector object with Green and Blue color set to 0%. It is not related to Linear gamma.
Here is PLD example.
Image
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PhotoLine UI Icons Customization Project: https://www.pl32.com/forum3/viewtopic.php?f=3&t=6302
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Herbert123
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Re: Color blending bug

Post by Herbert123 »

Thanks for figuring out the core issue. :-)

It is a bit of an obscure bug.
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Re: Color blending bug

Post by borgo1971 »

shijan wrote: Sat 13 Jul 2024 00:11 This is how it looks on macOS 10.14.6. Problem remains in exported image.
About the same in macOS 13.6.7, with this latest beta. No problems with PhotoLine 23.53