On Sat, 27 Oct 2001 11:28:10 -0700, "Jon A. Cruz"
<jon### [at] geocitiescom> wrote:

Here's an idea:

Allow the option of possibly not doubling up the feild lines, but
instead leaving them black. This will make it easier to make a utility
to combine different frames as you can just load two frames into an
array and simply add the frames to eachother- as opposed to the
slightly more complicated process of figuring out which elements are
the correct rows and interlacing them into a single frame. 

Just an idea. 

Also, it might be possible to make a script in povray SDL to combine
odd and even frames into single frames by forming a triangle mesh- two
triangles for each line and image mapping the appropriate image onto
each set of lines. 

Again.. just some ideas.

I don't really know much about the povray source code so disregard the
following if it sounds really stupid, but.. for every other frame, why
couldn't povray just reopen the rendered image for the last frame and
replace the approprate rows with the rows for the current frame? 

It does seem sort of ridiculous to render the two frames in parralel.
But would it really be hard to just reopen the image from the last
frame for the current frame?

Post a reply to this message

-Hail

  And here is yet another idea:

 Parse scene, render even fields (unless odd field flag is on) leaving odd
fields blank. parse next frame, render odd fields leaving even fields blank.
And start over on the next frame. If this method is used then antialiasing
should be taken care of not to intermingle with with the opposite field
(horizontal antialiasing?). Of course antialiasing is not very important
when working with interlaced material so it could be turned off.

Post a reply to this message

Thorsten Froehlich wrote:

> In article <3bdda363@news.povray.org> , "Vampyrium" <cyb### [at] hotmailcom>
> wrote:
>
> >   So, this is an apple thing. If you check out Adobe Premiere (PC version)
> > you will find otherwise.
>
> No, it isn't.  As there should be no difference between the Premiere
> versions on Macs and PCs.  Also the other remaining DVD authoring software
> company Sonic/Daikin (they recently merged) seems to supports such import
> with their products (I don't know anybody who has access to those).


both-fields-per-frame idea was bad and unsupported. It's the opposite. It's the
normal way for the field. (And at the multimedia company I was at, we used both
the mac and windows versions of Premier.)

But Thorsten points out that the POV images  _can_ work with Premier. However
for broadcast resolutions (720 x 485 or 720 x 576) the standard CCIR 601 format
is interlaced.

So I'd say it would be nice if the POV team had time and inclination to change
the output, however a simple documentation change makes it compatible with most
home-user software anyway, so no big deal.

--
Jon A. Cruz
http://www.geocities.com/joncruz/action.html

Post a reply to this message

In article <3BE2310F.19AEBD2B@geocities.com> , "Jon A. Cruz" 
<jon### [at] geocitiescom> wrote:

>  however a simple documentation change makes it compatible with
> most home-user software anyway, so no big deal.

Which I would like to hand over to the documentation coordinator ;-)


    Thorsten


____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

Post a reply to this message

in news:3BDAFCBA.3E20163C@geocities.com Jon A. Cruz wrote:
> If it's WAD, I could probably write up a new bit for the docs to
> explain it better.

in news:3be26a46@news.povray.org Thorsten Froehlich wrote:
> In article <3BE2310F.19AEBD2B@geocities.com> , "Jon A. Cruz" 
><jon### [at] geocitiescom> wrote:
> 
>>  however a simple documentation change makes it compatible with most
>>  home-user software anyway, so no big deal. 
> 
> Which I would like to hand over to the documentation coordinator ;-)
> 

Who knows nothing about field rendering and has to rely on somebody 
else to write a piece. Jon?

Ingo

-- 
Photography: http://members.home.nl/ingoogni/
Pov-Ray    : http://members.home.nl/seed7/

Post a reply to this message