Reversing Clip in Slow Motion- Jerky...

jrazz wrote on 5/27/2006, 11:24 AM
Why can I get smooth slow motion when I play a clip in "foward motion", but when I take the same clip and try to reverse it in slow motion, it is jerky.

I took the clip and dragged while holding down ctrl and then I took that clip and copy and pasted it and then reversed it. Is there a way that won't end with jerky results. I want to say I have done this before without incident but I can't remember what I did or if I just dreamt it.

j razz

Comments

riredale wrote on 5/27/2006, 11:43 AM
I think reverse operates a bit differently in Vegas prior to version 6--it gets the field order wrong, or something like that...
johnmeyer wrote on 5/27/2006, 11:45 AM
It's an old bug. When you reverse the motion in Vegas, it wrongly inverts the upper/lower field order. As long as the entire clip is running backwards, the simple solution is to right-click on the event, choose Properties, and then change the field order from upper to lower (or vice versa).

If you have both forward and reverse motion in the same clip (through the velocity envelope), you will need to use a less satisfactory solution. I can't remember right now what worked -- I posted about it before but don't have time to look for it now. I believe that using Supersampling (on the Video Bus track) made the problem almost go away.

I can't remember, but I think that this bug is fixed in the latest versions of Vegas.
jrazz wrote on 5/27/2006, 11:55 AM
I'm using 6d so I should not have this problem? After my render finishes I will open up the clip and reverse the field order. Thanks. I'll post back as to whether or not it worked.

j razz
jrazz wrote on 5/27/2006, 12:45 PM
Okay, my render finished and I pulled back up this veg. I filmed in HDV so upper field was first. I changed the field order to lower on one of the reversed clips and rendered it out. It looked great- no problems. What I found odd was that when I changed the field on that one reversed clip all the reversed clips changed field order while leaving the "normal" clips' field order in tact.

j razz