Attached Link: Vue backroom

I'd say it really depends on what you want to do. For a still there's many work-arounds to simulate splashing waters, waterfalls, etc - even for animations there's limited possibilities to make a waterfall looking "halfway" realistic.

Of course the best would be Realflow, as it can barely do anything else then simulating water/liquids. But its so complicated - if you dont plan spending weeks and months learning it, its of no use to even think about it.

Same for other applications - yes latest maya got some function to convert to a mesh, but do you really want to buy maya? Look at the price tag. 

Also dont start to export meshes from other programs unless you are 100% sure you can animate them in vue properly. Most likely you end up having a large model that looks good in stills and like crap in animations.

I guess the only real option left is taking a look at the vue work-arounds, theres plenty in the backroom and at other vue tutorials.

I attached a link as for some odd reasons i cant paste it here.

If that really doesnt help I'd recommend describing what you want to do more detailed and I'm sure people here will try to help you as good as they can.

Vue content creator
www.renderarmy.com