"Warp" <war### [at] tagpovrayorg> wrote in message news:3e37efa2@news.povray.org...
> Dennis Miller <dhm### [at] attbicom> wrote:
> > Is there any way to change the default background, for example to a black
> > that is video legal? (.062, .062, .062)
>
>   What is "video legal"?
>

From: http://www.greatdv.com/post/blurtitles.htm
2. Illegal colors

It takes video beginners (some of whom are very experienced computer artists) a
very long time to get used to video legal colors.  A great number of the videos
I see use titles and graphics which use computer or print colors, ignoring the
limits of video.  Video legal colors look dark and washed out on a SVGA monitor,
you just have to get used to it!

If you wish to work in video, you must learn the rules and work inside them!
Video isn't digital yet, at some point you picture must display on a cheap TV
with analog inputs.

The Premiere titler has a warning for legal and illegal colors.  It's not always
precisely right, but stay inside the "safe" zone and you'll be OK.  Photoshop
has an NTSC Legal filter which is also not always accurate (sometimes leaves in
oversaturated colors) but is genrally helpful.  Many 3D programs have a NTSC
legal filter; LightWave's is particularly accurate.

Remember - in digital video, WHITE is 235,235,235 and not a bit higher!  Reds
should usually be kept under 200 and desaturated by adding B & G.

But what about black?  When creating graphics or titles for use in DV
productions, you must use 16,16,16 as black - not 0,0,0 !  0,0,0 black will
translate as illegal superblack in your video, and when +7.5 IRE setup is added
for duplication the superblack will remain stubbornly at 0 IRE.

Post a reply to this message