Selective Prerender question

fultro wrote on 2/17/2005, 11:15 PM
Having a problem understanding what to expect from a prerendered segment here.
Whenever I prerender something it works fine as long as I do not move on to any other editing, even if that editing does not involve the prerendered section in question. I n other words it seems to be working no differently than a RAM Preview - once I start editing again the prerendered segment becomes choppy until rendering again
I know that the prerendered file exists (I can find it in the default prerender folder ) but some how the project loses any reference to it
I realize that editing the prerendered segment will mess up the effect of prerendering. I am not doing that. Editing only continues on other sections of the project - not the prerendered part.
What am I missing here?
fultro

Comments

Yugioh wrote on 2/18/2005, 3:09 AM
The prerender process is basically a temp file that pertains to that area on a track. If you do anytrhing to change that track event, like move it, add a transisition, etc, it will lose its prerender status and require another prerneder. Try using Add to a new track which renders out a new Avi file on a new track of the composition. It will be added above and you can keep (or mute) the tracks below that were used to render it in case you need future changes to the same area.

search the Help file for Prerender:
From the Tools menu, choose Selectively Prerender Video to render temporary preview files for the sections of your project that cannot be rendered in real time. These temporary preview files are used when you play back that section of the project.

When you perform a selective prerender, a separate preview file is created for each section of your project that needs to be prerendered. Sections that contain transitions, effects, and compositing will need to be prerendered; unprocessed DV media files will not.

Selective prerendering is helpful when previewing on an external monitor.

Have fun,
Yugioh
beerandchips wrote on 2/18/2005, 6:15 AM
Better yet. Sony could maybe have Vegas do what Final Cut does and that is have a pre-rendered section continue to live. (ie. you make selection. pre-render. then you move the pre-rendered part somewhere else. it stays pre-rendered. no need to render again unless you change something in it.). We especially need to be able to add tracks and not effect pre-rendered section unless of course, we change something in that section).

It's early, I'm rambling, but I think you get the idea.
Jimmy_W wrote on 2/18/2005, 6:30 AM
I believe thats what add to new track does. You can then take that event and move it where ever you like.
Jimmy
beerandchips wrote on 2/18/2005, 8:13 AM
I believe thats what add to new track does. You can then take that event and move it where ever you like.
Jimmy

Sorry. Not the same.

Steve
Jimmy_W wrote on 2/18/2005, 8:29 AM
Sorry, Maybe I missed something in your statement. Please help me understand.

JImmy
fultro wrote on 2/18/2005, 9:53 AM
yes that works - I don't particularly care for that method (extra steps/clutter)
But I just don't get the point from a programming point of view of creating this large uncompressed avi file that becomes useless almost immediately, and I mean even if I don't continue to edit or move the prerendered segment - I like the sound of Premier's approach.
Thank you all - you have at least confirmed my quandry
beerandchips wrote on 2/18/2005, 12:09 PM
Add to new track flattens all tracks in that selection. I don't want to do this. I want to be able to grab everything and move it to the end of the project or whereever. Plus I can modify each layer still if I want. I just don't like the way Vegas does this.

It certainly isn't life threatening if Vegas never does this. It's just that I have gotten used to this feature elsewhere.

Steve
Jimmy_W wrote on 2/18/2005, 12:50 PM
Got ya, Thanks for explaining steve.
Jimmy