That + a Button Multipass Idea is very nice 
and would
be usefull, because Video AI is sometimes very unpredictable in the outcome, especialy with Interlaced Material and Dione.
Sometimes you throw in DVD9 Material, with high Detail, Low Blocking, and nice Sharpness, and use Dione DV, and the Outcome is full of weird Artefacts. Fine Lines are converted to a pattern that look like this char → ~ ←
Then u add second enchangement with Scale 2x, Artemis Aliasing and Moire, Recover Detail 100%, then the ~ patterns are gone, the contures are cleaned up, and finer, but some real detail & grain (which i want to keep. Pron has to be look good in Motion, not just on one specific Frame) is gone.
Then you compare that Output, with a Medium Setting QTGMC Output, and the QTGMC Output has more Original Detail, but less sharpness (especialy on Hairs) on the Outlines from a Person.
But all in all the QTGMC Output looks in Motion more alive and real (So it’s better for my taste)
The way how details on gradients on legs/arms are distributed, how grain, a low noise pattern, and details are stable (and dont come and go for a few frames like in Video AI) is just more harmonic. In germany we say “sieht aus wie aus einem Guß” which translates to something like “it looks like it was molded at once, from one piece of steel”
After you see how much time you wasted, you try Dione TV (without Second enchangent) and it looks amazing (for the most part, sometimes some weird AI Artefacts can happen) no crazy dehaloing, it just looks right !
Then you try a Source with something that has a little bit less Detail and Sharpness, you got the same Problems with Dione DV, and when you try Dione TV, it gets way worse.
Because for some reason Dione TV Dehalos sometimes the s*** out of the picture, and kill all the Details & Contures from the Picture.
Then sometimes when i throw in something from a DVD with a mushy washed out picture, and try Dione DV, the result is much better as anything that i can achive with QTGMC alone.
Then for some reason Dione DV creates nice looking fake detail everywhere, which just look nice
But all in all: Most times i just lose Time when i try Video AI first for Interlaced Material, and QTGMC would be the better choice in the first place.
Because all what i need to do in VDub2 is change a little Setting, Press F5 and i will immidiately see the result.
) what 2.6.4 does in the Preview, without stuttering.
