[Cin] oops apparently 'subtract' mode is broken!
randrianasulu at gmail.com
Thu Sep 29 17:02:34 CEST 2022
чт, 29 сент. 2022 г., 14:50 Andrea paz <gamberucci.andrea at gmail.com>:
> I think this is a complicated problem. You can see from the Compositor
> image you posted that the upper track (green) does not totally cover
> the lower track (red). So sometimes transparency works and sometimes
> it doesn't. It works exactly the same for me as it does for you. If
> you try some other overlays you can see that sometimes the result
> indicates that white values are also used during the blend, sometimes
> PS: I tried using the first appimage created, August 2020, and the
> same transparency display problem occurs.
> PS2: I tried rendering a single frame and the result is correct:
> instead of white parts there is transparency. I did a new rendering
> applying "subtract" and the result is completely wrong: all black!
may be because 100 - 100 in alpha channel = 0 ?
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