Re: Sirius Video Problem

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Dick Rous (dick++at++puth.demeern.sgi.com)
Wed, 24 Jul 1996 11:39:53 -0600

Hi,
Are you in multi-processing mode?
I experienced the same problem in an early attempt to use Sirius video in a
demo for a virtual studio application.
When i ported the stuff to Performer 2.1 and OpenGL, i found out that Sirius
needs to be initialised in the DRAW context, while previously in the APP
process.
I can email you the code if you're interested.
Regards,
Dick.

On Jul 23, 9:31pm, Salvador Cabaruvias wrote:
> Subject: Sirius Video Problem
> I'm using IRIX 5.3 Onyx with a 2 pipe configuration with 2 RM5/pipe. I am
> using Coryphaues's EasyScene with Performer 1.2 & GL.
>
> I loaded an airport database with 20 textures of various size textures. I
then
> load a object (HUD) containing a single sq. polygon with a texture. Using
the
> complex.c example for the Sirius Video, as my guideline, I did the following:
>
> create Sirius video texture.
>
> apply a predraw & postdraw callback to the HUD to override the existing
texture
> with the sirius video.
>
> initialize the sirius video as per the example.
>
> What I observed when I ran the program:
>
> The HUD polygon gets the Sirius Video texture in two parts: the upper left
> (botton half of the texture) quarter and lower left quarter (top half of
> texture). The rest of the polygon gets textures from the airport database.
>
> What I did to fix it was load a database with a few buildings (4) and 4
> textures.
>
> Anybody experience this problem, if so, can you explain what is going?
> Also I checked the texture memory, and when I just load the database, I use
> less
> than 2 mbytes, which for RM5 says there is plenty of texture still left.
>
> Thanks in advance,
> sal
>
> --
> --------------------------------------------------------------------------------
> Salvador Cabaruvias | sal++at++sgidev.mdc.com
|
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every
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>-- End of excerpt from Salvador Cabaruvias

-- 
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Dick Rous                    email....: dick++at++demeern.sgi.com
Systems Engineer             voicemail: 5-8160 
Graphics Technology          phone....: (31) 30-6696868


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