Velocity map

[stezza]

Hi folks.

Can anyone help with using a velocity map render element.
Easy enough to output but what are the steps in comp using AfterEffects.

Thanks guys

[SonyBoy]

Reelsmart Motion Blur is pretty much the industry standard.

There's some docs here http://revisionfx.com/faq/motion_vectors/#Maya

Here's also some notes from Mr. RevisionFX himself, Pierre Jasmin:

Don't check Clamp Velocity
You can use Max Velocity of 1.0 if you like (but from there you are forced to work in floating point in project settings of AE) - this corresponds ot the Max Displacement value in RSMB + Vectors, so if you intend to work in 16 bpc, type in there the image width for example
And you do need an alpha channel for MV, if you export via multi-channel EXR, you will need post eXtractor to put back the alpha (extract + Trck Mask layer above with Alpha)


There are a bit old so I'm not sure still correct.

[stezza]

Thanks SonyBoy, that's great.
But is there an effect that you can use theres a whole list of camera blur effects in AE and didnt really know which to plug the map into.
I'll get RMB.