Re: [osg-users] Driving 3D and 2D display by just rendering one time

2013-04-23 Thread Robert Osfield
Hi Abhinav,

From what you've written I can't gleen enough knowledge of your hardware or
software setup to provide any specific guidelines.  In general I'd say keep
your 3D graphics separate from your 2D and sync them via some thread safe
scheme you come up that manages any common data appropriately.

Robert.


On 12 April 2013 09:42, Abhinav Goyal abhi...@vizexperts.com wrote:

 Hi All,

 I want to drive two outputs.  One output is 120hz 3D capable while other
 is 60HZ (2D capable).

 I thought of two approaches for obtaining this scenario.

 First :
 Render the scene graph two times one with 120Hz and other with 60HZ.
 This seems fine but here every computation is happening two times.

 Second Approach:
 Render the scene graph with 120HZ( Having both left and right frames) and
 just extract the left or right frame and give this as input to second
 display.

 I am not sure whether something like approach 2  can be done or not.
 Please guide me in this regard and suggest if there is a better way of
 obtaining the same result.

 ...

 Thank you!

 Cheers,
 Abhinav

 --
 Read this topic online here:
 http://forum.openscenegraph.org/viewtopic.php?p=53585#53585





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[osg-users] Driving 3D and 2D display by just rendering one time

2013-04-22 Thread Abhinav Goyal
Hi All,

I want to drive two outputs.  One output is 120hz 3D capable while other is 
60HZ (2D capable). 

I thought of two approaches for obtaining this scenario.

First : 
Render the scene graph two times one with 120Hz and other with 60HZ.
This seems fine but here every computation is happening two times.

Second Approach:
Render the scene graph with 120HZ( Having both left and right frames) and just 
extract the left or right frame and give this as input to second display.

I am not sure whether something like approach 2  can be done or not. Please 
guide me in this regard and suggest if there is a better way of obtaining the 
same result.

... 

Thank you!

Cheers,
Abhinav

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=53585#53585





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