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Gnobelix

bad performance with paint brush tool in Blend mode Overlay

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Hello everybody,
I wanted to replace the sky in a picture.
I proceeded as follows:

1.  open a TIFF-File (4000 pix * 6000 pix=
2.  duplicate the Image
3.  go to channels
4.  select Background blue and create a Greyscale Layer
5.  back to Layers
7.  select the Greyscale Layer
8.  got to Adjustments and select Brigtnees/Contrast (eg increase the contrast and merge)
9.  got to Adjustments and select Levels (eg increase the black level/white level and merge)
10. activate the paint brush tool, set the Color on black, opacity  on 100%, hardness on 0%
      and the blend mode on Overlay
11. paint the whole  Image (repeat step 10 and 11 with the color white)

(With this  method I want to create a pure black and white mask.)

The utilization of the CPU quickly reaches a value of almost 100%.
It takes a felt  perceived  eternity until Affinity releases the previously requested performance.
This is not the case in the current customer version. How the performance was in the last beta,
I do not know anymore. I think a test with the last beta (.283) is no longer possible,
the test phase will probably have expired.

Can someone confirm the high utilization of the CPU?

Leistung.thumb.png.0c571319863bf9154da34b227e43c2fe.png

 

Chers

IMGP4573.afphoto


Affinity Photo 1.6.5.135 :  Affinity Photo-Beta  1.7.0.333 :     Affinity Designer 1.6.5.135 : Affinity Designer-Beta 1.7.0.333:

Affinity Publisher-Beta 1.7.0.337:       Windows 10 Pro  (Version  1809 Build 17763.437)

 

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Your attached .afphoto file is corrupted (too short), according to Photo 1.7.0.293.

I am curious whether you left a step out, as I can't figure out what painting the complete image with black then painting it again with white should accomplich. If you didn't make another layer in there, or switch to another layer, aren't you just going to have the same effect as simply painting with white in the first place?


-- Walt

Windows 10 Home, version 1809, 16GB memory, Intel Core i7-6700K @ 4.00Gz, GeForce GTX 970
Affinity Photo 1.6.5.123 and 1.7.0.333 Beta       / Affinity Designer 1.6..5.123 and 1.7.0.333 Beta    / Affinity Publisher 1.7.0.337 Beta

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Sorry, why the file is corrupted I do not know, maybe there was an error uploading.
I loaded two files into the dropbox here the link

 

Cheers

 


Affinity Photo 1.6.5.135 :  Affinity Photo-Beta  1.7.0.333 :     Affinity Designer 1.6.5.135 : Affinity Designer-Beta 1.7.0.333:

Affinity Publisher-Beta 1.7.0.337:       Windows 10 Pro  (Version  1809 Build 17763.437)

 

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Seems fine in my slightly newer build. I've either missed something or something has improved in the build I have. Would you mind trying this again once you get the next beta build?

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