Apply Image in Affinity Photo 1.10.5 does not work

[Affni]

I have downloaded all YouTube Videos available on this topic. I was not able, to reproduce the results shown in any of those video with my Affinity Photo program. In the meantime I suspect, that either somthing within the program is broken or no longer available.

My understanding of the procedure is:

Select the layer which should be manipulated

Select the source for manipulation - this can either be the same layer as the target layer, another layer, or an image on the harddrive

Select the blend modus and the color space

Enter expressions in the field for the target color - for example

DR = SR/2
DR = SR/SG*0,2

Regardless of which combination of the above I choose ... there is no change in the image

By the way: The workaround described here does not work either:

 

[Callum]

Hi Affni,

if you disable Metal Compute acceleration in the apps performance preferences does the image start changing? If not please could you provide a screen recording demonstrating this issue?

Thanks
C

[Affni]

53 minutes ago, Callum said:

Hi Affni,

if you disable Metal Compute acceleration in the apps performance preferences does the image start changing? If not please could you provide a screen recording demonstrating this issue?

Thanks
C

Hi Callum,

that's funny. I disabled Metal Compute ... it works as expected. I re-enabled Metal ... it continues to work as expected. May be, that detour forced a kind of cleanup behind the curtain. By the way in case that it could be helpful for your analysis: I am using a Mac Mini 2018 with a T2-Chip. My be that chip gets in the way when one addresses metal in the "wrong" way.

Thanks for your quick and successful help