[eq-dev] eqOSG on two nodes

[Mehmet Fatih Uluat]

Hello Stefan,
Thanks for your reply. As you pointed out calculating wall coordinates seem
to be key point here,
it is also where I got stuck :). The previous (3 node) setup that I asked is
a little bit complex 
so I go back to initial one which have two node config of which I attached.
Now I just want to have 180 view
of front in two channels and 180 view of back in other two channels. I
prepared attached config files but both of them show same front 180 views in
frontChannel1+frontChannel2 and backChannel1+backChannel2, where I expect
180 back view in backChannel1+backChannel2. 
Also let me ask you this "to obtain backward view"; 
-Is setting heading of projection or 
-Taking symetry of wall coordinates are not enough? 
Should I do some additional programing to sort that out in render clients.

Thanks in advance...


-----Original Message-----
From: eq-dev-bounces at equalizergraphics.com
[mailto:eq-dev-bounces at equalizergraphics.com] On Behalf Of Stefan Eilemann
Sent: Sunday, March 15, 2009 3:08 PM
To: Equalizer Developer List
Subject: Re: [eq-dev] eqOSG on two nodes


On 13. Mar 2009, at 22:30, Mehmet Fatih Uluat wrote:

> Hi Stefan,
> I made the changes you mentioned, in fact I add another node with  
> three
> windows
> to obtain 360 view in wall configuration, but still no 360 view :(.
> I attached the configuration and also add an illustration [...]

Your resource section looks ok now (presumed that your GPU's are  
configured correctly for the provided window sizes).

You have to calculate the correct wall coordinates. For each planar  
canvas (left, right, 3 x back), define a compound with a wall and no  
channel. For each output area on the canvas, define a child compound  
with the correct channel and viewport.

Doing it methodically step-by-step for each wall will get you there in  
the fastest way.


HTH,

Stefan.

>
>
> -----Original Message-----
> From: eq-dev-bounces at equalizergraphics.com
> [mailto:eq-dev-bounces at equalizergraphics.com] On Behalf Of Stefan  
> Eilemann
> Sent: Friday, March 13, 2009 3:57 PM
> To: Equalizer Developer List
> Subject: Re: [eq-dev] eqOSG on two nodes
>
>
> On 13. Mar 2009, at 13:49, mfuluat wrote:
>
>> I would like to generate a 180 degree view with two nodes which have
>> one video card an two outputs respectively; totally four outputs. I
>> prepared following configuration but when I used it; both left and
>> right windows generate same two view in each node. What might be the
>> problem?
>
> You have to define viewports for your channels, right now you have two
> full-window channels per window, so the last one wins and overwrites  
> the
> previous channel rendering. The attached config remaps your config  
> to a
> single window, which does the job.
>
>> By the how can I generate achieve same 180 with wall configuration?
>
> You define your total wall size so that your distance to the wall is
> wall_width/2.
>
>
> HTH,
>
> Stefan.
>
>
>
>
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