Thanks Robert, Rendering to texture is ok, it works fine. What I need is to completely split the rendering (pre and others) in 2 very own calls (or find a way to do the same) To explain the context / my need, here is a little documented 'code' :
myOwn3DEngine* aCustom3DEngine; osgViewer* myViewer; //init the osg world, add a osg shadowedScene (with osgShadow::ShadowMap technique) [...] //init my own world (aside osg one) [...] //in the application loop: // do all osg render to textures (including shadow map generating) myViewer->prerenderingTraversals(); // <---- I miss this one :) // play with generated textures (like adding shadow of non osg objects in shadow maps) myOwn3DEngine->updateOsgShadowMaps(); // draw my custom 3d engine, with shared shadow map (shadow maps will include osg shadows) myOwn3DEngine->render(); //draw the OSG scene with updated textures (excluding prerendering stages, as they are done few lines above) myViewer->renderingTraversals(); => is there any method to do something like that ? if I call twice the current renderingTraversals(), textures (including shadow maps) will be overwritten at each ? node switch in the graph to enable/disable the rtt camera ? (seems ugly to me) Fred On Mon, Oct 19, 2009 at 9:43 PM, Robert Osfield <[email protected]> wrote: > Hi Frederic, > > Are you familiar with the osgViewer/osg::Camera RTT capabilities? > They are very flexible now, you can render subgraphs under an scene > graph RTT osg::Camera as a pre rendering stage then switch it off for > subsequent frames. Have a look at the osgprerender, > osgprerendercubemap examples as well as osgShadow itself. > > Robert. > > On Mon, Oct 19, 2009 at 7:52 PM, Frederic Marmond <[email protected]> wrote: >> Hi all, >> >> I would like to generate a shadow map before the real scene draw, in >> order to alter it (add 3rd parties objects shadows in it) before >> applying the shadow map to the 'real' world. >> The context is that osg is called inside a custom 3D engine, so a post >> prerender callback won't be enough. >> >> How should I achieve that ? >> is there a way to do only pre-render stages, then others ? >> >> thanks in advance >> >> Fred >> _______________________________________________ >> osg-users mailing list >> [email protected] >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
