On Tue, 2 Dec 2003, Jonathan Bartlett wrote:
> I'm rendering an animation that will eventually be displayed on a 16:9
> screen that has a resolution of 1024x768. In order for this to look
Hmmm, 1024x768 is 4:3 so I'm a bit confused what is meant by
"16:9 screen ... resolution of 1024x768"
Is this going be played from a DVD? If so then the letterboxing
will usually be done by the DVD player.
> right, it seems I need to render my animation in a different resolution
> (on the PC), and then scale it to 1024x768 so that it will display right
> on a 16:9 screen. However, I am utterly confused as to how to do this
> calculation. Anyway know?
The (small amount of) composing I've done was by creating the
artwork at 720x540 and scaling to 720x480. This was for a normal
(4:3) movie. Alternatively it could have been done at 704x528 and
scaled to 704x480 (which is another valid DVD resolution).
I've not done any widescreen creation...
Widescreen NTSC is 854x480 so I think the proceedure is the create
the data at that resolution, scale to 720x480 and set the aspect
to 16:9 (-a option of mpeg2enc).
Now PAL widescreen is 1024x576 so you'd create the input at that
size and scale to 720x576 and set the 16:9 aspect.
If you're not going to a DVD but simply playing via the video out
then perhaps tinkering with the player's aspect/scaling options can
do what is needed (MPlayer has a lot of them). Not something I've
done anything with though.
Steven Schultz
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