[Bf-committers] Improvement of BGE rendering for CAVE systems

Ton Roosendaal ton at blender.org
Fri Nov 4 17:32:34 CET 2011


Interesting stuff! I'll make sure our dome/vr guru Dalai Felinto will  
check on it :)


Ton Roosendaal  Blender Foundation   ton at blender.org    www.blender.org
Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands

On 4 Nov, 2011, at 14:32, Damien Touraine wrote:

> Hi,
> I'm working on the BlenderCAVE project
> (http://www.gmrv.es/~jgascon/BlenderCave/). Its purpose is to use
> blender to render on CAVE systems
> (http://en.wikipedia.org/wiki/Cave_Automatic_Virtual_Environment).
> We use python API to synchronize the scene across all computers that
> render on a screen. Python API is also used to adapte the camera to  
> the
> current screen (ie : the one that is attached to the current  
> computer).
> For this feature, it is important to be able to define precisely the
> projection matrices for both eyes independently. More specically, we
> must be able to adapt the projection to the right position of the user
> eye. For instance, you can to turn on yourself while looking on the
> floor screen. With default stereocopy viewing mode of BGE the eyes of
> the user must stay parallel to the screen and "horizontal".
> Although we have searched, we haven't found any way to define  
> projection
> matrix for left eye independently from right eye through the python  
> API.
> Thus, we suggest a patch we have developped. This patch creates two
> projection matrices  (left and right eye) besides the current one  
> for a
> given camera. It manages the rendering for daily use (ie.: outside
> BlenderCAVE project).
> I can send the patch that is based on SVN version 41510 (uncompressed
> "svn diff" : ~12K) on this list. But I'm not sure that it is the right
> place.
> Regards
>     Damien Touraine, long time developper of CAVE applications
> -- 
> --------------------------------------------------------------------
> Damien TOURAINE - Ingénieur de Recherche CNRS, LIMSI-CNRS
> Groupe de RV&A "VENISE", (http://www.limsi.fr/venise/)
> Bat. 508, Universite Paris-Sud 91403 Orsay cedex - +33 1 69 85 81 64
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