сб, 1 окт. 2022 г., 23:01 Phyllis Smith <[email protected]>:
> BUT Subtract mode when using the Red/Green png's does not appear to be > correct. I will keep analyzing. > I think difference might be due to alpha channel in pngs ...? > On Sat, Oct 1, 2022 at 12:43 PM Phyllis Smith <[email protected]> > wrote: > >> Preliminary results show Subtract (Difference) mode is working same as in >> this url as Andrew quoted. See attached where compare3.gif shows the URL's >> difference with Cinelerra subtract below and input.gif shows CinGG input >> files. >> >>> according to this >>> >>> https://emptyeasel.com/2008/11/14/layer-modes-part-three-difference-addition-subtraction-darken-lighten/ >>> >>> color inversion in subtract mode IS normal thing. >>> >>> yet in original Cin something else happens .... >>> >>> >>> may be Phyllis can replace our original red-green square images with >>> full-color gradients + photo, so effect will be more natural? Or add this >>> into new appendix ..... >>> >>>
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