Hi all, I've read a lot on this forum about rendering geometry on top of a scene (HUD style), but I would like some details on how to render geometry "in the background".
I'm writing a small nodekit which is a "Far Object" and I have some problems with zbuffer and Near/Far planes calculations to avoid precisions problems... * If I'm right, I only need to use the setRenderBinDetails to a very negative value to be sure the node is rendered first of all. * I don't see how to deal with Zbuffer problem now... Obviously, I want to see my far nodes in the scene, but I want to avoid Z precision issues when rendering medium sized geometry near of the camera, so how do I manage this ? I think I need to keep the automatic Near/Far calculation if I want to see the nodes, but after rendering them, I need to clear the Zbuffer, what is the good method to achieve this ? using a ClearNode ? As my far node is designed to be a nodekit, I maybe need to avoid the use of a local camera as I see in discussions, because it could be introduce performances pb with many far nodes isn't it ? thanks a lot, Eric ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16877#16877 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
