[osg-users] osgPPU::Processor and other root's children traversing order

2012-10-03 Thread Peterakos 
Hello.

I am working on osgPPU but there are some things i haven't completely
understood yet.
I add 2 children in root's group.

A cow model and the osgPPU::Processor.
In processor i have added 1 child which outputs the depth buffer and under
that child i have added 1 child which outputs to frame buffer.

I have noticed that the order of
root-addChild(loadedModel);
root-addChild(ppu);
doesnt matter and i am wondering why.


UnitCameraAttachmentBypass needs the depth buffer which is taken from
camera. But if ppu is rendered first (as first child) there will be no
depth buffer to output
to frame buffer (through UnitCameraAttachmentBypass's child, which is
UnitOut).

Why is this happening ? do i miss something?

The scene graph is the following

root
   ppu
   UnitCameraAttachmentBypass (outputs Depth)
  UnitOut
   loadedModel


Thank you for your time.
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Re: [osg-users] osgPPU::Processor and other root's children traversing order

2012-10-03 Thread Sergey Polischuk 
Hiiirc ppu stuff does it things at a renderbin 100. Cheers. 03.10.2012, 23:42, "Peterakos" hay...@gmail.com:Hello.I am working on osgPPU but there are some things i haven't completely understood yet.I add 2 children in root's group.A cow model and the osgPPU::Processor.In processor i have added 1 child which outputs the depth buffer and under that child i have added 1 child which outputs to frame buffer.I have noticed that the order of root-addChild(loadedModel);root-addChild(ppu);doesnt matter and i am wondering why.UnitCameraAttachmentBypass needs the depth buffer which is taken from camera. But if ppu is rendered first (as first child) there will be no depth buffer to output to frame buffer (through UnitCameraAttachmentBypass's child, which is UnitOut).Why is this happening ? do i miss something?The scene graph is the followingroot   ppu       UnitCameraAttachmentBypass (outputs Depth)          UnitOut   loadedModelThank you for your time.,___osg-users mailing listosg-users@lists.openscenegraph.orghttp://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org___
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