Prieview Upgrade in version 6?

Fairwin wrote on 4/8/2005, 8:19 AM
Does anyone know if the new version of vegas will have full frame rate preview? I have gotten used to pre-rendering and building dynamic ram previews, but it sure would be nice to not have to do those extra steps. I know it can me done because my Avid Express editor does it on the same machine beautifully. Unfortunately, that is the ONLY thing that is preferable about the Avid software (in my humble opinion).

Comments

RafalK wrote on 4/8/2005, 9:48 AM
I don't think those who know will be able to tell you this info prior to the realease. Most likely due to the non-disclosure agreements. I know, it's tough, but it's only few more days man. Hang in there.
johnmeyer wrote on 4/8/2005, 10:22 AM
Vegas already has full rate preview for DV video. However, when you start adding effects, eventually Vegas (or any other program) can't create all the new pixels quickly enough to display all the frames. This is true even on dedicated computers that have hardware assists. However, the faster your computer, the more fX you can add before you reach the point that frames must be dropped. Therefore, the real question you should be asking is, "will my next computer be enough faster so that all my video displays in real time?" Get a faster computer, and the preview becomes real time even when you add lots of fX.
PumiceT wrote on 4/8/2005, 10:22 AM
Doesn't this come down to a pretty logical hardware speed limitation?

I don't think there's anything Sony could do to decrease the amount of processing needed to show a full-frame realtime preview.

Or am I just assuming things?

EDIT - John said pretty much the same thing. Just in a different way.
BillyBoy wrote on 4/8/2005, 4:33 PM
The CPU speed simply isn't fast enough.... yet. I know that is lots of grousing about slow render speeds and slugish "real time" playback, but when you think about how many bytes are getting moved around its pretty amazing that all that needs to happen happens as fast as it does.

If you have Windows XP and want to watch Windows "work" bring up the Task Manager by clicking Ctrl, Alt, Delete at the same time. Go to the Processes tab. Now click above on View, select columns, check I/0 Read Bytes I/O write bytes. Click ok to exit. Expand Task Manager window to full size or at lease large enough to see the extra columsn you just added. If necessary hover over the dividers between the colum titles and drag right to make the new columns wider so you see the whole figure. If you have Vegas rendering or start to render a new project you can watch how many bytes are getting moved around by Vegas and everything else that's running. You'll soon get in the 10's of billions of bytes if Vegas in rendering a big enough project, just check back every hour or so. Display is updated in real time and has no drag with whatever applications you're running.