It complained for the empty field...I'll try with the dummy group core
node...thank you!
Erik
2009/3/11 Carsten Neumann <[email protected]>
> Hello Erik,
>
> Erik Podetti wrote:
> > As I'm doing deferred shading pass using textures + FBO +
> > PolyForeGrounds, in many cases when I launch the render action for an
> > FBO I don't need to traverse the graph any more.
> > My FBOs usually have a PolyForeground while rendering. My question is...
> > - how can I know if they traverse the graph or not? I put in
> > fbo->getExcludeNodes.push_back() the root node of my scene, but there
> > were no performance improvements.
>
> I haven't double checked, but I think this only excludes the actual node
> listed, not the subtree, not sure though.
>
> > - May I use a trav mask on the render action? Can you give me an example
> > of travmask?
>
> yes, trav masks would work. The RenderAction only visits a node and its
> subtree if the bitwise AND of its own trav mask with that of the node is
> non-zero. Setting the root's trav mask to 0 excludes it.
> But why do you have your whole scene set as a root on the FBOViewport to
> begin with? If you just leave the root field empty (or if it complains
> put in a dummy node with a group core) it should not render anything.
>
> Cheers,
> Carsten
>
>
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