[osg-users] Viewer slaves and RTTs

[Johny Canes]

Ah someone that thinks with me instead of trolling me (XD Robert)

I understand the idea of an FBO etc, but if I tell my camera to use an FBO, it goes black. This is because this camera is not an rrt-pbuffer, but a regular gc added to a camera that serves as a viewer slave.

I understand there can be many color attachments, but although I tell my camera to render to its only color buffer, it also renders to the screen. Is this a limitation of using a non pbuffer gc? Must be, because I've hit this problem with all my might yesterday and got nowhere :( So a bit frustrated lol

I am working on render passes right now, which means I can add an eye adaptation / adaptive tone mapping / bloom pass and more.

Is it correct that I have to add ortographic viewer slaves with their own master scene graphs with a quad to achieve them rendering in succession?


SMesserschmidt wrote:
> Hi Johny,
> 
> > Hi,
> > 
> > Might I add it was quite nontrivial to port threejs, but it all works. Now only one thing remains, which is either using a pbuffer gc or to somehow prevent my camera from drawing directly to its window.
> > 
> Well, then simply render to a FBO and pass the texture to your final 
> camera which will render to the framebuffer. The multiplerendertargets 
> example might give you some pointers.
> 
> 
> Cheers
> Sebastian
> 
> > 
> > Thank you!
> > 
> > Cheers,
> > Johny
> > 
> > ------------------
> > Read this topic online here:
> > http://forum.openscenegraph.org/viewtopic.php?p=70259#70259
> > 
> > 
> > 
> > 
> > 
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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=70261#70261