Re: Switching textures

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Angus
Thu, 18 Jun 1998 13:05:10 -0600


Angus,

We are running MultiGen Version 1.4 and loader 15.4. We have
the same problem with both 15.4 and 14.2 flight files.

Suzie

-----Original Message-----
From: Angus Dorbie
To: Bemis, Suzie CEI-TACCSF
Sent: 6/18/98 12:54 PM
Subject: Re: Switching textures

> Bemis, Suzie CEI-TACCSF wrote:
>
> Hello,
>
> We are running Performer 2.2 on an Onyx with 6.2 OS. We have a .flt
> terrain database with one 252KB texture (ground.int) mapped on it, and
> 3 other .flt models in our scenario. As we are flying over the
> database and a truck .flt model with a texture (camo.rgb) on it comes
> into the scene the texture on the terrain database switches from the
> original 252Kb texture to the camo.rgb texture which is on the truck.
> As soon as the truck is no longer in the scene, the texture switches
> back to the correct original texture. This switching continues as the
> truck appears and disappears from the scene.
>
> We have flown around other terrain databases and the same problem
> occurs.
>
> We recently upgraded from OS 5.3 and Performer 2.0, and we did not
> have this problem with the older versions.
>
> The debug indicates only 37.5% of the texture memory in use.
>
> Any suggestions would be greatly appreciated?
>
> Thank you,
> Suzie

Sounds like there's a problem with state management, maybe a
problem with the way the loader created the scene graph and
associated state information from the flight file.

What version of Multigen, flight file format & loader are you using?

Cheers,Angus.

-- 
"Only the mediocre are always at their best." -- Jean Giraudoux 

For advanced 3D graphics Performer + OpenGL based examples and tutors: http://www.dorbie.com/

RE: Switching textures

Angus,

We are running MultiGen Version 1.4 and loader 15.4.  We have
the same problem with both 15.4 and 14.2 flight files.

Suzie

-----Original Message-----
From: Angus Dorbie
To: Bemis, Suzie CEI-TACCSF
Sent: 6/18/98 12:54 PM
Subject: Re: Switching textures

> Bemis, Suzie CEI-TACCSF wrote:
>
> Hello,
>
> We are running Performer 2.2 on an Onyx with 6.2 OS.  We have a .flt
> terrain database with one 252KB texture (ground.int) mapped on it, and
> 3 other .flt models in our scenario.  As we are flying over the
> database and a truck .flt model with a texture (camo.rgb) on it comes
> into the scene the texture on the terrain database switches from the
> original 252Kb texture to the camo.rgb texture which is on the truck.
> As soon as the truck is no longer in the scene, the texture switches
> back to the correct original texture.  This switching continues as the
> truck appears and disappears from the scene.
>
> We have flown around other terrain databases and the same problem
> occurs.
>
> We recently upgraded from OS 5.3 and Performer 2.0, and we did not
> have this problem with the older versions.
>
> The debug indicates only 37.5% of the texture memory in use.
>
> Any suggestions would be greatly appreciated?
>
> Thank you,
> Suzie

Sounds like there's a problem with state management, maybe a
problem with the way the loader created the scene graph and
associated state information from the flight file.

What version of Multigen, flight file format & loader are you using?

Cheers,Angus.


--
"Only the mediocre are always at their best." -- Jean Giraudoux

For advanced 3D graphics Performer + OpenGL based examples and tutors:
http://www.dorbie.com/


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