[...] if there was an Amiga demo released these days with some of these effects inside it, you'd have to give it a thumb up eh?
I got quite nostalgic watching this anyway.
Amiga was one of the leading machine (still in use to date) to mess with Genlocks in a native way... It's 15kHz video mode suits perfectly so it's no clue that most productions decided to have such a great titler/multieffector with theis setups!
BTW, it would be nice to have a demo with some of those effects in realtime on a stock AGA machine... ECS could do the job aswell... no OCS please!

A typical setup to target should be a stock A500+[1MB-chip, ECS] or a KS3.1 equipped A1200/030@50Mhz/8MB-fast (040/060 are quite common among Amiga users, while PPC are too few as a target platform the % should drop for CGX/Picasso equipped machines... unless you rely on emulation E-UAE/WinUAE)
Organic and Silouhette transitions reminds me of "State of the Art" as well as Cycling Colors...
3D effects (rotating mapped cubes) can be quite common...
Which effects do you mean? Underwater effect "tunnel" ?