Hasta La Motion!

Hi. I am doing small research about vectorblur in Nuke. I have to admit, I am bit confused. I don’t know what I am doing wrong, but vectorblur by Nuke has problem with bluring object in front of none moving objects. I have tried do make a comparison between Fusion native vector blur, Nuke vector blur and Realsmart vector blur. Realsmart works as same as Nuke. But between Nuke and Fusion is dramatical different. Fusion knows nice blur object in front of none moving object and whole vectorblur looks nicer than Nuke vectorblur.

I have read about that problem "bluring objectc in front of none moving objects" on the realsmart web page. They recommend create a mask for that object and blur that in separated layer. But why is it possible, that Fusion knows this without any separation of objects to layers?? Just click, click and done… And on the top of it, sometimes is quite hard to separate object to new layer, like my plant on one of those renderings.

note:
Pictures with blue sky were done by Nuke
Pictures with white sky were done by Fusion
I used separated files, png 16 bits for RGB and Velocity channel. Rendered by Vray.

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