View Full Version : why does motion blur SUCK

06-12-2013, 04:35 PM
I have this 28 frame motion of a small white square:


setting motion blur to 100% * 28 should render that all in one go, but the result is nothing like the motion path:


what the hell is that?! it seems like LW suffers from an extreme lack of precision in photoreal motion blur

please someone tell me there's a way around this

(source files for anyone who's interested: http://irml.3d-rabbithole.com/Motion%20Blur.rar)

06-12-2013, 04:54 PM
Set minimum samples to 1
Set maximum samples to 64
Set motion blur passes to 32

Thanks for the scene. It helped. :)

http://i465.photobucket.com/albums/rr16/xXswampyXx/Before_MB_zps7c797b9f.gif (http://s465.photobucket.com/user/xXswampyXx/media/Before_MB_zps7c797b9f.gif.html)

06-12-2013, 05:23 PM
this is better thanks, but unfortunately this little scene was just a proof of concept for a more complex motion path, and I don't think upping the blur passes is going to work in this case

classic cam blurs correctly but with the limited AA the coverage is very poor, I wish I could have the best of both