Hi -
Let's try this again - DNS had a momentary glitch and the _stupid_
MAILER-DAEMON probe it does failed
> First problem, I didn't enable AA when rendering the images, as jitter becomes
What's AA?
> I rendered the images at 720X576, as that's the DVD standard setting, but I
> didn't take into account the aspect ratio, which will be very important when
> I look to make wide-screen video, which keeps the same resolution settings,
> but alters the aspect ratio to create the 16:9 rather than 4:3...
>
> I am wondering if I should render the images at a much higher resolution and
> scale them down, but would this effect the image quality in a posible bad
Of course ;)
For NTSC you create content destined for widescreen playback at
854x480 and scale to 720x480 (widescreen DVD has a SAR (sample aspect
ratio) of 40:33). For PAL I think the content needs to be created
at 1024x576 and scaled to 720x576 - but I'd have to double check
that.
> sure what resolution is used by the industry by default, but I know that they
> use 32 bits per primary colour, I.E. 3X32 bits of colour for each pixel
> rather than the standard 24 or 32 bit per pixel. Of course this and more gets
One thing you need to be careful of is 'broadcast safe colors' when
you're generating content on a computer. Computers work in RGB
most of the time and there are RGB combinations that are not legal
broadcast/DVD Y'CbCr values. 'yuvcorrect' has a CONFORM mode that
will core&clamp the values but it might be best to not generate
the out of range RGB in the first place.
Good Luck!
Steven Schultz
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