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<pre wrap="">hello Malte,
yes, I think you missed the point or I wasn't clear enough :-)
I don't want to make all the video transparente; I want to use video as if I was using a 32-bit image, with full alpha support: that is, with some parts fully opaque, and others fully transparents, and some with some transparency.
I received some e-mails about that; I am trying to use a lot of TIF files, and I am using makefilename (thanks to claudius) to change the images (so, I am simulating a video with an image sequence). It is working until now ;-)
bye,
andrei
Message: 6
Date: Wed, 21 Jul 2004 13:26:46 +0200
From: Malte Steiner <a class="moz-txt-link-rfc2396E"
href="mailto:steiner@block4.com"><steiner@block4.com></a>
Reply-To: <a class="moz-txt-link-abbreviated"
href="mailto:steiner@block4.com">steiner@block4.com</a>
Organization: block 4
To: <a class="moz-txt-link-abbreviated" href="mailto:pd-list@iem.at">pd-list@iem.at</a>
Subject: Re: [PD] transparent video or: how to concatenate strings?
andreithomaz wrote:
</pre>
<blockquote type="cite">
<pre wrap=""><span class="moz-txt-citetags">> </span>hello list,
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>I am using GEM on WindowsXP. I would like to mix videos with
<span class="moz-txt-citetags">> </span>transparency (that is, with alpha channel). But I cann't find a codec
<span class="moz-txt-citetags">> </span>that supports that. Do you know anyone?
<span class="moz-txt-citetags">> </span>
</pre>
</blockquote>
<pre wrap=""><!---->How do you mean that, do you just want to blend video into each other?
No problem with that, you can add an alpha blending to each Gem stream.
Something like
[gemhead 50]
|
[color 1 1 1 0.5]
|
[alpha]
|
[pix_movie]
|
[square 4]
makes one videotexture half transparent (the 0.5 is it),
double it and put another number in gemhead, 51 maybe, for the other video.
</pre>
<blockquote type="cite">
<pre wrap=""><span class="moz-txt-citetags">> </span>A way to solve the problem would be to show a image sequence (PNG files
<span class="moz-txt-citetags">> </span>with 32 bit color). But, for that, I would have to transform a number
<span class="moz-txt-citetags">> </span>into a string, and concatenate it with a string (for exemple, "frame" +
<span class="moz-txt-citetags">> </span>number + ".png"). Is it possible to make that?
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>thanks a lot,
<span class="moz-txt-citetags">> </span>andrei
<span class="moz-txt-citetags">> </span>
</pre>
</blockquote>
<pre wrap=""><!---->But maybe I miss the point of your mail...
Malte
<div class="moz-txt-sig">--
Malte Steiner
media art + development
-www.block4.com-</div></pre>
<pre cols="72" class="moz-signature">--
RGB Design Digital
<a class="moz-txt-link-abbreviated" href="http://www.rgbdesigndigital.com.br">www.rgbdesigndigital.com.br</a>
</pre>
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