Honestly, I’ll say this: nobody uses TP2… and i can GARENTEE the person who told you you can’t do it in pflow is rifaat daugher, who A) doesn’t even know how to use pflow (I hired him for a pflow project once and we pretty much had to do it all ourselves) and B) argues the point that tp2 can do things aura and other completely non particle related applications can do, purely because they’re not ‘cebas’ products, therefore gods gift to every answer.
I use TP/pflow, maya and houdini and every single one of these packages can do it, some easier than others. TP2 and pflow boxset 2 and houdini are the only ones with built in rigid body dynamics for particles, although again even maya can do this stuff with a bit of fudging around.
I’d release some TP2 tuts but every time I think about doing it I get warned against it since there’s only really one studio in the whole world who uses it which is digital dimension… even scanline.DE don’t really use it anymore.
In regards to water, the wave of death stuff is pretty easy, just motion blurred cubes even can do the trick. I’ll be releasing some tuts on water stuff soon for pflow as I’ve done a lot of R&D on this subject for a movie recently. I’m also doing some really kickass water effects in maya right now too using hardware rendering which look fantastic and render very quickly.