My problem is that the clouds are supposed to become part of my depth peeling algorithm for achieving proper transparency, and hence I cannot just draw them after everything else ;)
I need to draw the clouds without any alpha blending enabled, because the depth peeling will blend the clouds into the final scene afterwards. The blending done by DrawObjects(true) causes the clouds to turn very dark at the edges in my use case. I just asked the Sundog support, because after purchasing the SDK I think there's 3 months of support included. Do you know if they also have a user forum? Christian 2013/2/26 Sebastian Messerschmidt <[email protected]> > Hi Christian, > If you are referring to drawing the clouds individually: > I had exactly the same problem and didn't find a solution apart from > rendering the clouds after everything else. (simply using the DrawObjects > approach) as I thought I'm simply stupid. > But maybe simply drop a line to support@sundog, they really helped a lot > with those issues. > Also it is worth upgrading from time to time, as they seem to release a > new version quite regularly. > > If you get some answer/solution I'd be interested, too > > cheers > Sebastian > > Hi, > > I have the need to draw the silverlining clouds without alpha blending > enabled. So I use DrawObjects(false) in order to roll my own cloud > drawing. I tried to follow the sample posted here: > http://www.sundog-soft.com/docs/html/usage.html > > Under "Here's an example of manually drawing clouds following a call to > Atmosphere::DrawObjects(false):" this guide contains some OpenGL snippets. > > But it seems the call to atm->DrawObject(*it) is messing with the OpenGL > state so badly, that I don't even see anything on screen any more > afterwards. I tried saving and restoring most OpenGL states around this > function call but got funny sparkling clouds in bizarre colours. > > I was just wondering if anyone can offer a working example of an OSG > silver lining integration with running DrawObject() for clouds in the > drawImplementation of a drawable. > > Christian > > > > _______________________________________________ > osg-users mailing > [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 > >
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