Rendering for print to tape

mm2k wrote on 3/21/2001, 11:54 AM

When rendering using 720x480x32, 29.970 fps video with
44,100 Hz, 16-bit, Stereo audio how much quality is lost.
When reloading a file that was rendered with the above
settings and rendering it again using the exact same
settings, again how much quality is loss. Will the loss
increase each time you change things in the clip then re-
render?

Comments

Caruso wrote on 3/22/2001, 4:58 AM

MM2K:
I am by no means an expert, but, in my experience, initial
rendering produces output with no noticeable loss in
quality. VV is non-destructive in the way that it handles
your originally captured footage, so re-rendering from
a .VEG file would only create a new AVI, and, hence, a
brand new itteration, not a second generation of a
previously rendered file.

If you are talking about rendering to x.avi, then, opening
x.avi on the VegasVideo timeline and rendering to x
[gen2].avi, I'm not certain why you would want to do this
(nor can I answer your question as to whether there would
be generational loss . . . as I've not tried it).

If you wanted to make changes to x.avi, you could simply re-
open the .veg file from which it was created, make the
change, and re-render anew.

I use VV2.0b in tandem with Pinnacle's StudioDV,
importing .avi's I create in VV for assembly and final
output to tape from SDV. I'm not certain how VV does it,
but, SDV, upon re-rendering an .avi, will only render those
portions that have been altered, so, unless you pick on the
same footage, making multiple changes to the same area of
your project over several renders, there would be no
generational loss (using SDV as the final output engine).

How Vegas handles this, I'm not certain, but would be as
curious as you to hear some comment from those more
knowledgeable.

Caruso