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Posted

Hello everyone,

I am totally new here and currently using the trial version of Affinity photo mainly for drawing/painting on a M1 Mac mini. I have noticed that, with brush strokes on the canvas, if the brush tip is moving, the whole canvas gets blurry. Does anyone have any insight about it? Thanks!

Posted

It's a display refresh speed optimisation - a smaller mipmap level of the layers is used while the brush is moving and zoom is below a certain threshold. On my Retina iMac, the optimisation happens when zoom is less than 200%. On a "standard" pixel density display, maybe the threshold is 100% zoom, but I don't know.

I can disable it by changing Retina Rendering from its default of "Automatic (Best)" to "High Quality (Slowest)" in the app's performance preferences, but I don't know whether that is effective for a "standard" density display.

Posted
54 minutes ago, z.liu said:

@anon2 is there any downside to change the setting to "Slowest"?

There is more lag when painting, but lag depends on canvas size, brush size and document bit depth, so it possibly won't disturb you much of the time.

Posted
1 minute ago, anon2 said:

There is more lag when painting, but lag depends on canvas size, brush size and document bit depth, so it possibly won't disturb you much of the time.

Ok, thanks. I haven't noticed any lag so far. But I will pay attention to it.

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