> on ubuntu 18 (lts?) you can just download and install older libpng
Thanks, I was stuck on atp not finding libpng12.... Now Cin-HV works and I can see that it has the Blur plugin with the "Alpha determines radius" option. But still I can't understand its use. Looking at the source code can you understand how it works? It would be nice to explain it in the manual, or remove it altogether. -- Cin mailing list Cin@lists.cinelerra-gg.org https://lists.cinelerra-gg.org/mailman/listinfo/cin