Hi,
Sorry to answer so late, just discover I had questions on this thread…
In fact I don’t render my vray 3d motion blur half length and I don’t use motion vector. I just render motion blur with vray like for the final except that my sampling are less high to accelerate render but it results in some noise in the motion blur. So I just load my layer in after effects and apply reel smart motion blur (or RSMB pro without mv: I try both and see which one work better) with the default values or less. So the Reel Smart Motion Blur filter adds just enough blur to remove the noise but not enough to screw the look of the motion blur most of the time. But sometimes
but now I just learn a few things about how how vray work and my renders with motion blur and DOF are almost cut in half. So I can make them even less noisy.
you can see an example here:
without RSMB
and with RSMB: (in that case I rendered a bit higher rez (1960 xx 1120) it was in order to add a camera shake but I can also cut the wrong calculation made by RSMB on the border.
