Hi Yann, from my experience with different shadow maps techniques the best results I am getting with open terrain and models is with LightSpacePerspectiveShadowMapDB.
To answer your question: probably you have found the masks for shadow casting and recieval with setReceivesShadowTraversalMask and setCastsShadowTraversalMask methods of ShadowedScene. Then you set these masks in the node->setNodeMask. For the terrain you set the nodemask to terrain->setNodeMask(CastsShadowTraversalMask | ReceivesShadowTraversalMask) and for the truck you do truck->setNodeMask(ReceivesShadowTraversalMask) I have some code I can share if you wish that works well with huge terrains and models. Ping me on my email if you want Nick On Thu, Apr 10, 2014 at 4:27 PM, Yann Takvorian <ytakvor...@virtualsim.com>wrote: > Hi, > > I have tried to use osgShadow on a terrain database to make it more > reallistic but could not get what I want. > > I started with the osgShadow sample (v3.1.5) and noticed on the island > demo (-4) that the shadows where jittering when the light was moving. > > Then, I replaced the island with an OSG database onto which I added one > truck. > > So, my shadowedScene contains 2 nodes, the osg database node and the truck > node. > > On the final result, I tried several shadow techniques. The ShadowMap is > the one I like the most but the result with the moving truck is not > satisfactory. > > I believe that the selfshadowing is the problem because, when the terrain > is receving only and the truck is casting, the shadow of the truck is nice, > BUT, there is no shadow for all buildings and trees of the database ! > > Is is possible to remove the selfshadowing effect ? > > Could it be possible to make the terrain apply the shadow on itself, > without the truck node, then cast the truck node on the terrain only ? (so > that to prevent the terrain from casting shadows on the truck) > > Any hint would help me. > Thanks in advance. > ... > > Thank you! > > Cheers, > Yann > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=58872#58872 > > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- trajce nikolov nick
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