Panorama Projection filter is slow
Submitted by tobias
Created attachment 371259 screenshot
I used the Panorama Projection filter and it is really slow with my test image.
I used this 8192x4096 (89 MB) image: https://hdrihaven.com/hdri/?c=skies&h=umhlanga_sunrise
Direct download link: https://hdrihaven.com/hdri/download.php?h=umhlanga_sunrise&r=8k
RAM and CPU cores are not 100% used, I think here could it be possible to improve this.
Version: git master