Track blend mode bug maybe?

Shotcut 17.11.04
Made a short video of all the track blend modes.

A few of the blend modes do nothing or duplicate other blend modes.

Blend mode Saturate does nothing.
Blend mode HSL Saturation is the same as blend mode Over.
Blend mode HSL Luminosity is the same as blend mode Over.

Is this intentional, a bug, or just an oversight?

It can appear to be like that unless you really understand what you are looking for and the results, and sometimes it depends heavily on the alpha channel. Shotcut track blending uses the Cairo library and its blending modes:

I’ll look at the Cairo library and try to understand the blend modes better. Some of the modes (the ones I mentioned) still seem to do nothing no matter how I look at it.:slight_smile: :confused: