<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">ср, 2 нояб. 2022 г., 22:06 Einar Rünkaru <<a href="mailto:einarrunkaru@gmail.com" target="_blank" rel="noreferrer">einarrunkaru@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
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On 02/11/2022 14:53, Andrew Randrianasulu wrote:<br>
> So, as Igor noticed CinGG's divide and subtract modes do not behave like <br>
> they behaved in Cin HV/CV/CVE I digged into matter a bit and found few <br>
> confusing (for me, amateur) things.<br>
<br>
I replaced the original Overlayer with new version created by Monty in <br>
CVE and CVO. May be GG did not replace. This explains the differences.<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">well, as far as I understand in cingg part of overlayer logic was pushed into python script generating C files .... but thankfully equations for pixel processing remained in .h file.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">python thing:</div><div dir="auto"><a href="https://git.cinelerra-gg.org/git/?p=goodguy/cinelerra.git;a=blob;f=cinelerra-5.1/guicast/bccmdl.py;h=92499b639f2cca8608a0aab25dc8771473168a11;hb=HEAD">https://git.cinelerra-gg.org/git/?p=goodguy/cinelerra.git;a=blob;f=cinelerra-5.1/guicast/bccmdl.py;h=92499b639f2cca8608a0aab25dc8771473168a11;hb=HEAD</a><br></div><div dir="auto"><br></div><div dir="auto">I guess it was a bit boring to write all those new functions by hand .....</div><div dir="auto"><br></div><div dir="auto">but again, I suspect we have not just single bug but at least few related changes in how compositing performed. (for example simple grey template with some pure black squares composites in CinCV with itself just fine, I mean if you have just one track with this file set to divide mode. Yet CinGG shows black output. I guess it was intentional, because others non-photo compositors behave like this (I got plenty of black output playing with Final Cut Pro 2.0 compositing modes - they had subtract but not divide, and I got similar {but not identical} results by flipping order of tracks in cingg, using same input media files)</div><div dir="auto">)</div><div dir="auto"><br></div><div dir="auto">if you can provide Igor with some ideas how to turn equation I linked into pixel-processing macro insertable into cingg - I think he will be very happy even if we here not yet decided what really broken and how to fix this. I used to run my kernel with patch deemed too unsafe for official kernel, but it was working acceptably for me. So, having patch or two fixing unwanted upstream behavior is not crime, just that maintaining growing list of such patches become task in itself over time ....</div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Einar<br>
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