Re: [Cin] oops apparently 'subtract' mode is broken!

Interesting results. I will try to understand and October is going to be "look into Overlays"! Will use your attached files.

I am not sure if it is correct to do the tests with the test_subtract.xml project I provided. I used 2 png images of FullHD size and then resized them in the Compositor via Projector. More correct is to use the other 2 images I attach where the colored squares are already the correct size and everything else should be transparent background. I also attach the test_subtract_2.xml project that uses these 2 new images. Trying the overlays with these new images show that in the blend they also use the white values we find instead of the transparencies.