Motion Blur as Default = Lower Video Quality

strangezero wrote on 2/18/2003, 5:38 AM
I bought Vegas Video 3 last year (from Greece) and recently Vegas Video 4.

I use Vegas Video ONLY for DV AVI editing and then render back as Dv Avi.

I have the feeling that Vegas 3 produced better image quality dv avi files than Vegas 4. Is it because Vegas 3 didn't have as default the Motion Blur?

The only difference i found between the two programms when editing/rendering dv avi (PAL) was that Vegas 4 had MOTION BLUR and Vegas 3 didn't (only in choice).

My question is if i bypass Motion Blur in Vegas 4, will i have the same video quality as in Vegas 3?

Thank you in advance and sorry for my poor english.....

Comments

strangezero wrote on 2/18/2003, 1:11 PM
Anyone????????????????

No reply???????????????
Former user wrote on 2/18/2003, 1:18 PM
Bypass motion blur? You have to apply motion blur specifically to your material. I hope the hell it's not on by default since this effect would add years to your rendering time.

Cuzin B
strangezero wrote on 2/19/2003, 1:27 AM
maybe someone from sonic foundry will answer that... but i think it is default because otherwise it wouldn't have "Bypass" option
Former user wrote on 2/19/2003, 7:00 AM
Well...if you know what motion blur does...and I assume you do - can you see it effecting your tracks at all?

Motion Blur is implemented through video bus tracks only in V4 as an envelope. You must add points and specifically apply this effect to your material. It is not on by default.

And where is this bypass option you speak of? I would like to check it out.

Cuzin B
vonhosen wrote on 2/19/2003, 11:17 AM
My understanding is that in Vegas 4 you have to add motion blur by right clicking on the video bus track & inserting a motion blur envelope. The motion blur envelope would then affect all tracks. Having set it this way you can turn it off any individual track by selecting the "bypass motion blur" button on the track header & it will be switched off for that track only.

But no envelope = No motion blur on project as a whole & no need to therefore disable it on the track header button.
Erk wrote on 2/19/2003, 11:36 AM
I believe in another thread (can't remember the thread title) someone from SoFo stated that if you haven't a applied motion blur through a video bus track, then disabling motion blur with the button on a video track actually slows down rendering.

G
TimTyler wrote on 2/19/2003, 12:32 PM
In VV4.0, select the properties for a DV project.

On the Video tab, look at the "Motion blur type:" property. Mine defaults to "Gaussian" and there's no option to disable or bypass the motion blur.
strangezero wrote on 2/19/2003, 1:07 PM
I have the feeling when i am watching my dv avi rendered video (vegas 4) that have more soft edges that should have.

The same video looked better rendered with vegas 3.

The bypass motion blur is on the left side of the track.... also in project properties like timtyler said the option "none" is not available....

Maybe i'm mistaken but how can i be sure that the settings are EXACTLY the same as vegas 3??
vonhosen wrote on 2/19/2003, 2:41 PM
The setting in properties doesn't have a "none" because motion blur is not on by default. It is only displaying your choice of moyion blur should you add a motion blur envelope.
As I said before it's my understanding that it won't be enabled unless you add it to the video bus track by adding an envelope. The bypass motion blur button on the track header is just to stop it on that track should you have enabled it & not want it on that track.

If you don't want it on your project , don't worry about what it says in the project settings, don't select the bypass button on the track header & don't add an envelope and you should be fine.

Perhaps someone from Sonic can confirm this to put it to rest.
Former user wrote on 2/19/2003, 4:53 PM
You won't need SF to chime in. Why don't you stick a motion blur envelope over your entire production and then render...if you want a real definition of rendering pain...then you see what motion blur really does (when it's on)

Motion Blur is off by defualt. No one would ever use this program if it was on all the time.

SonyDennis wrote on 2/19/2003, 5:01 PM
Correct.

Motion blur is not "on" by default, you have to create a motion blur envelope and bring it above 0.000 in order to be computing motion blur. Also, adding the supersampling envelope above "1" will do similar things.

The motion blur mode in Vegas 4 is only used when you enable motion blur or supersampling using the video bus track.

One thing that IS different from Vegas 3 is that the default for video events is "smart" resampling instead of "no" resampling. If you event's effective framerate is different than the project (or render) frame rate (which must also be 23.976 or higher), then event media will be resampled, which may blend frames, which might look like motion blur to you.

///d@

P.S. The comment about "bypass motion blur" making rendering slower was in the context of actually using motion blur. Under some conditions, using bypass can slow down rendering, which is counter intuitive, but there's a good technical reason.