Re: [PD] Alpha+pix_film

[i...@thesaddj.com]

HI everybody,
thanks to all, i solved the issue. But is still not clear to
me what's happening.
I mixed the different suggestions you gave me (cause
independently no one was working) and i got this:

[gemhead]
|
[pix_film]/[colorspace RGB(
|
[pix_alpha]
|
[colorRGB]
|
[alpha]
|
[pix_texture]
|
[rectangle]

it looks a bit weird but it's working and my cpu is drinking
a coffee while i mix four videos of 160/200mb each.
but I'm really keen to understand where was my problem...
as Philippe said i have to send the [colorspace RGB( message
first and then load videos. 
[pix_alpha] seems to be the obj making the work done, but
anyway i had to add [colorRGB] to be able to change
transparency. 
@IOhannes: i'm on windows xp pro. do you think it could be
because of this?
what do you mean with video-importer?
thanks..

Marco

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Re: [PD] Alpha+pix_film

[i...@thesaddj.com]

Hi Marius,
thanks for the answer,
i tried in the order you suggested but i have the same
effect.
With 'alpha on/off' i mean sending 1/0 with [tgl] to the
left inlet of [alpha]. 
I tried also different video formats (including the
homer.avi in gem examples) but nothing.
I made a new patch only to find the bug in this process, so
i don't have any more objects that the ones that i draw in
the previous e-mail and the [gemwin] with its proper
messages.
really strange...

Marco


- Original Message Follows -
From: marius schebella marius.schebe...@gmail.com
To: i...@thesaddj.com
Cc: pd-list@iem.at
Subject: Re: [PD] Alpha+pix_film
Date: Sun, 25 Jan 2009 00:43:19 +0100

 i...@thesaddj.com wrote:
  Hi all,
  here is Marco, this is my first post.. glad to be here.
  i'm trying to use the [alpha] object to mix different
  videos using OpenGL.  I followed tutorials, checked the
  forum and the list but i still have this problem:
  I can change the transparency of a geo without texture,
  and everything works also when i load images. But when i
  add [pix_film] or [pix_movie] and i load a video the geo
  itself disappears - if alpha is on - and appears again
  (displaying correctly the video) when alpha is off. 
  I also tried to change [pix_texture] with [pix_texture2]
  and [rectangle] with other geos, but nothing...
   I think this is pretty strange.
  this is my basic patch not working:
  
  
  [gemhead]
  |
  [pix_film]X[t f]
  |
  [pix_texture]
  |
  [alpha]
  |
  [colorRGB]
  |
  [square]
 
 
 That should work. even if the order is a little strange,
 because I would  put the alpha and color before the
 pix_texture, but it is working here  and I also have an
 ATI Radeon X1600 (MacOS). what do you mean with turn
 alpha on/off? are you setting the alpha by  sending a
 value between 0 and 1 to the rightmost inlet of colorRGB?
 are there additional things in your patch which could
 cause the problem? marius.
 
 
  
  
  Cannot understand if it could be a problem of my graphic
  card - ATI Mobility Radeon X1600 - or something else.
  I work - unfortunately - on windows xp pro, with
  pd-extended latest stable release.
  i didn't have the chance to try the same on another
  computer, by now.
  Thanks a lot to everybody..
  
  cheers...
  
  Marco
  
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[PD] Alpha+pix_film

[i...@thesaddj.com]

Hi all,
here is Marco, this is my first post.. glad to be here.
i'm trying to use the [alpha] object to mix different videos
using OpenGL.  I followed tutorials, checked the forum and
the list but i still have this problem:
I can change the transparency of a geo without texture, and
everything works also when i load images. But when i add
[pix_film] or [pix_movie] and i load a video the geo itself
disappears - if alpha is on - and appears again (displaying
correctly the video) when alpha is off. 
I also tried to change [pix_texture] with [pix_texture2] and
[rectangle] with other geos, but nothing...
 I think this is pretty strange.
this is my basic patch not working:


[gemhead]
|
[pix_film]X[t f]
|
[pix_texture]
|
[alpha]
|
[colorRGB]
|
[square]


Cannot understand if it could be a problem of my graphic
card - ATI Mobility Radeon X1600 - or something else.
I work - unfortunately - on windows xp pro, with pd-extended
latest stable release.
i didn't have the chance to try the same on another
computer, by now.
Thanks a lot to everybody..

cheers...

Marco

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