Vegas noob question about video effects

Edwin Rhone wrote on 11/4/2008, 7:47 PM
Hi there,
Using Vegas 8, my background is audio production. I need some insight on using fades, and text effects....

In the audio world say you add a plug-in effect to a track or fade, volume curve etc.. It increases the burden on system performance. you can freeze or "bounce" this effect down and get rid of it being in real time. therefore getting some performance back

My question is can the same be done with video effects? I'm thinking that these effects are making my projects come out 3 times bigger than the original file even when im cropping out clips and using the exact same render settings.

thanks!

Comments

PeterWright wrote on 11/4/2008, 8:07 PM
Hi Edwin, welcome

You didn't say what format video you're working with, or how you're currently trying to add a video effect.

Vegas has many tools - to increase or decrease how much of an effect is applied, there are keyframes, but if you just want to fade out a video event or title, hover over the top right corner of the timeline event and the cursor changes to a quadrant - drag this to the left and you have created a fade out lasting however far you have dragged. To fade in, it's the opposite - top left corner, drag to right.

hth - if not, give some more details.
Edwin Rhone wrote on 11/4/2008, 8:35 PM
I'm just asking if i can "bounce" these effects so they don't use resources anymore. for instance when a fade is used, it stays live and editable, therefor using system resources. is there a way to convert the fade so its embedded instead of live. I apologize for not knowing the correct terms, like i said i come from the audio world where these things are possible.
Chienworks wrote on 11/4/2008, 8:47 PM
Sure. Highlight that section and render to a new file. Delete that section from the timeline and replace it with the new file you've created.

Alternatively, don't delete that section from the timeline. Instead, drag the new file to a new video track on top of all the other tracks. When the cursor gets to this clip Vegas will see that it's not transparent, so it won't look at any of the tracks beneath it. This way you get the advantage of it being 'frozen', and you can remove it to go back to the editable version if you wish to make changes.

There are also prerenders in Vegas that can handle all of this transparently for you. However, they're kinda flaky and easy to lose as you do other editing, so i haven't found them very useful.
PeterWright wrote on 11/4/2008, 9:35 PM
Yes - Kelly (Chienworks) tells how - the reason I wondered what format video you were using was that unless you're applying heavy effects & colour correction, Vegas can usually handle playing "live" without any need to render or pre-render.

If effects do cause preview to be a bit slow, you can also see how it looks at full frame rate by using Ram Render - drag to highlight the desired area and hit Shift B.
tcbetka wrote on 11/4/2008, 9:38 PM
Yes, coming from a background working with SONAR, I found Pre-renders to be the most similar to bouncing tracks in the DAW world. But there is the option to render to another track as well, as Chienworks mentioned.

TB
Edwin Rhone wrote on 11/4/2008, 10:57 PM
Thanks guys, I knew I could count on you for answers. :)

It is the final file I was worried about because it comes out WAAAY bigger than the original file. I figured all the fades and effects must be adding to that file size.
PeterWright wrote on 11/4/2008, 11:05 PM
Edwin, the final rendered file should be the same as the original, assuming you're rendering to the same format - e.g. DV, HDV ~13Gb per hour, or much smaller if you're compressing ready for DVD.
What are you starting with, and what are you finishing with?
Edwin Rhone wrote on 11/6/2008, 1:11 PM
I started with a one gig file. 640X480 xvid compression, 128k mp3 sound, 29 fps, data rate of 163kbps, 24 bit video sample size. . I cropped out a quarter of the video. (the rest will be a separate video).
i tried to match the render options to the same. but thats where im sure i errored. I am new to video editing so sure its something i overlooked,
rs170a wrote on 11/6/2008, 2:43 PM
...xvid compression...

That's why your final file is so much larger.
XVid is a very heavily compressed format so, when you render it to a standard format such as DV-AVI or MPEG-2, the size will jump - a lot.

Mike
Chienworks wrote on 11/6/2008, 5:56 PM
You don't mention the bitrate of the video. That's what determines the output file size. 640x480 24 bit and 29fps doesn't mean a thing.
Soniclight wrote on 11/6/2008, 6:22 PM
Edwin,

I use Steinberg Cubase SX, so I understand what you're saying. Advice given here is spot on, and/but you haven't specified output platform. As you can tell when doing a render, there many choices of file formats, from uncompressed .avi to .mov, wmv, etc. And each one of these has tweakable parameters.

So maybe it would help you get the best advice here if you state:

A)

P.S.: Ditto on welcome to the club :)