<div dir="ltr"><div class="gmail_default" style="font-size:small">Yes, seems to be a problem, but I have no idea what the repercussions of the patch would be based on the following in the release notes for September 2020 which says in the Bugs/Issues fixed:</div><div class="gmail_default" style="font-size:small"> "Alpha is being set to 1 for background color always now – just a missing thing."</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Nov 11, 2022 at 5:31 AM Andrew Randrianasulu <<a href="mailto:randrianasulu@gmail.com">randrianasulu@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">User 'goat' reported cingg failed to create png sequence with alpha, even if proj set to rgba and png settings also include alpha.<div dir="auto"><br></div><div dir="auto">I ..spend a lot of tume in filepng and fule, until it dawned at me Ican check older cingg!</div><div dir="auto"><br></div><div dir="auto">Bug was not there in june 15 2020 selfbuild.</div><div dir="auto"><br></div><div dir="auto">And bug was present in 09 30 2020 ubuntu 16 static tar ...</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">So I searched git log and found this commit</div><div dir="auto"><br></div><div dir="auto"><a href="https://git.cinelerra-gg.org/git/?p=goodguy/cinelerra.git;a=blobdiff;f=cinelerra-5.1/cinelerra/virtualvconsole.C;h=3c3fb86f5710e15954c927f358210027cb819ed1;hp=193761b6763a61d11b0b85c8edbb4ec658df2b99;hb=abdff69b9309c7d5cd2ed6ce17dd2e0d85aef9a1;hpb=0b751b07a28e84a721b2bb76083db6629aa26d73" target="_blank">https://git.cinelerra-gg.org/git/?p=goodguy/cinelerra.git;a=blobdiff;f=cinelerra-5.1/cinelerra/virtualvconsole.C;h=3c3fb86f5710e15954c927f358210027cb819ed1;hp=193761b6763a61d11b0b85c8edbb4ec658df2b99;hb=abdff69b9309c7d5cd2ed6ce17dd2e0d85aef9a1;hpb=0b751b07a28e84a721b2bb76083db6629aa26d73</a><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">i tried to set alpha to 0 (zero) in virtialvconsole and suddently pngs and exrs and tgas got their alpha back!</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">How to check:</div><div dir="auto"><br></div><div dir="auto">Load video into cingg</div><div dir="auto">Set format to rgba-8 bit</div><div dir="auto">Set Alpha plugin over video, with parameter 0.5</div><div dir="auto">or use fader.</div><div dir="auto">Set output render to one frame, png, use alpha.</div><div dir="auto"><br></div><div dir="auto">Render </div><div dir="auto"><br></div><div dir="auto">While image will be with right format alpha will be absent as evidenced by gimp's colorpicker.</div><div dir="auto"><br></div><div dir="auto">patch cingg with attached patch, hope alpha will be back!</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">But of course we better to re-test video formats with alpha too ... (just not sure how)</div><div dir="auto"><br></div><div dir="auto">note, ffmpeg's png encoder worked ok, and so did tiff encoder. But png/exr/tga were all busted wrt alpha.</div><div dir="auto"><br></div><div dir="auto"><br></div></div>
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