!*$!!! Saving (loading?)pre-rendered video.

chriselkins wrote on 5/28/2002, 9:40 AM
I have gone from editing little two and three minute shorts to half hour talk shows...well, at least I'm TRYING to go there! I'm on W98se, so I can't render a 30 minute show as one file. I have recently discovered the "print to DV tape" from the timeline function and LOVE it! What a time-saver...theoreticaly at least. Before I say anymmore, YES, I HAVE checked the option on the preferences/general tab where you tell it to save pre-rendered video.

OK, here's the deal. I finish my 30 minute show and go to "print to DV tape" from the timeline. I realize it has to render all my transitions, and time-stretching and what have you. There were nearly 700 files needing to be pre-rendered. Fine. It goes on for about two hours, then begins printing(recording)to my camera. Great! Well, it continues, and as it does I notice one miniscule glitch that I simply cannot live with. I go ahead and let it finish, since this glitch was so close to the end. Before closing VV3, I get online and check here to MAKE SURE that I save everything WITH the pre-rendered files, so I can open it up again and not have to re-render what has already been rendered. I close VV3, then reopen it and my project. Hallelujah! There are all my pre-renders...still intact. I go to fix the glitch and somewhere, somehow, ALL THE PRERENDERED MARKERS HAD VANISHED!

Surely this is just a quirk and when I go to print to tape again, it will know where its pre-rendered files are and use them, right? WRONG!!!! I cancelled and checked the pre-rendered files folder....they were all there! All 658 of them! WHY DOES VV3 HAVE TO RE-RENDER ALL OF THEM AGAIN!!!???? I didnt change anything exept add one teeny weeny one-second insert of video on top of everything else! I did not push, move or ripple any events.

Please tell me there is some simple thing I'm doing wrong here! ...and tell me what it is and how to fix it, too!


THANKS!

Comments

SonyEPM wrote on 5/28/2002, 10:06 AM
Did you add a new video track?
chriselkins wrote on 5/28/2002, 11:44 AM
" Did you add a new video track? "

That's quite possible. I think I did. Does that fry it? What things should I NOT do in order to save the pre-render? Last night, it was rendereing again to print to tape and it just stopped in the middle of render 538. I had to re-boot. I was hoping it would at least remember renders 1-537. No luck. So, in that respect I did not add a video track. It even prompted to open from the auto-save after re-boot, but all the pre-renders were lost.

SonyEPM wrote on 5/28/2002, 12:11 PM
Anything that affects the entire timeline will invalidate all pre-renders. For example, if you add a new track or apply track-level effects/motion/opacity/envelopes etc, or add project-level effects or motion blur... these would force a re-render of everything.
BillyBoy wrote on 5/28/2002, 10:24 PM
I make some very complex videos, sometimes an hour or longer with multiple video and audio track and lots of filters applied all the tough 'takes a lot of time to render stuff'. Just my opinion, but I find it far simpler to forget about rendering from the timeline and just render to file once you are sure you're done editing then use the capature/print to tape feature or burn to a CD, DVD or whatever.
chriselkins wrote on 5/29/2002, 8:33 AM



"I'm on W98se, so I can't render a 30 minute show as one file."
Chienworks wrote on 5/29/2002, 11:02 AM
Chris, what happens when you try? I'm also running 98SE, and if i render to DV, Vegas breaks my output file into 4GB sections labeled file.avi, file 001.avi, file 002.avi, etc. at approximately 19 minute intervals.
chriselkins wrote on 5/29/2002, 12:35 PM
"Chris, what happens when you try? I'm also running 98SE, and if i render to DV, Vegas breaks my output file into 4GB sections labeled file.avi, file 001.avi, file 002.avi, etc. at approximately 19 minute intervals. "

I did not know it did that! I stand corrected, well sit at least. Sorry, Billy Boy!

I will definitely try that next time.

Thanks.
bcgreen wrote on 5/29/2002, 5:30 PM
Adding a new video track does not have the same effect in other NLEs...I use an Avid|DS at work, and if you add a new video track, but only utilize one section of it, it will only have to render the new, changed section because everything else is still valid-- there is no other content on the rest of the track to make a re-render necessary. Why wouldn't Vegas do the same thing????

Bryan

BD wrote on 5/30/2002, 11:11 AM
Wow, I second that emotion: bcgreen's idea would be a time saver (preserving the pre-renders when a new track is created, for those time segments which are not affected by any subsequent edits or switch changes).
Art wrote on 5/30/2002, 12:44 PM
I concur. As far as I know, it should only render portions in the timeline that has been touched. The term "rendering" means to actually "create new segments of files/tracks" which is not part of the original. To illustrate, when you create, say, a transition between two tracks, the system would need to render that portion (in this case, the one that overlapped) because your system is "seeing" this as a "new segment" and therefore needs to be rendered. ULEAD will NOT re-render segments that were untouched (after rendering), only new ones that were added.
FadeToBlack wrote on 5/30/2002, 1:33 PM
phantomias wrote on 5/31/2002, 6:24 AM
Just a proposal from my side: Add an empty video and an empty audio track to your project every time before you start rendering. this way you will always have the option to add something afterwards without rerendering the whole project. right?

egon