> ..but you'll never render images with that resolution because there's
> always a border around what dt displays, right?
>
> Yeah, you are right, but I followed the hint in the setting`s tooltip and
set the width and height according to the screen, not the image size.
> the floating point cached image has the same size as the largest
> lighttable thumbnail, to allow smoother transitions between lt->dr (the
> image will appear in exactly the same spot, same size, if your panel
> configuration is the same).
>
> so lowering that at least to something you actually get on screen would
> also help performance.
>
> Now I changed it to 2112x1408 pixels which is the largest image size I can
actually display in darktable. But I think it has hardly noticeable effect.
I also reverted the downsampling back to 1.0 and now I do again see the
same preview processing times as earlier, i.e. some 1.5 to 1.7 sec.
(instead of some 0.3 to 0.5 sec with downsampling=0.4). Therefore I would
say that thumbnail size has far smaller effect than downsampling if any.
> i do agree though that this downsampling factor is something that could be
> a good idea to expose in the config (and it used to be at some point). we
> probably removed it because of the zooming problems you describe, though
> that used to work at some point, too. so let's wait for the release and
> then we can look into fixing this again.
>
> That would be great, thanks a lot in advance! If you will need any
testing, do not hesitate to ask me. It will be my pleasure to help.
> cheers,
> jo
>
> Thank you for all your support and I wish you Merry Xmas!
Suni
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