Hi all,
I'm having a difficulty understanding whats goes wrong with my scene
setting.
I tried merge between the osghud example and the osgdistortion example.
The result I expected was to have object in the background which
responds to the mouse movement, HUD in front of it, and the entire image
distorted.
So initially I had a graph build like that
Root
Distortion Group
HUDed scene
Which equals
Root
DistortedTextureDisplayCamera
RTT Camera
GridGeometry
PostRenderCamera Scene
Hud geometry
This didn't work. I couldn't see the HUD.
Later I changed it to
Root
DistortedTextureDisplayCamera RTT Cameta
order 1 RTT Cameta order 1
GridGeometry
Hud geometry Scene
This configuration did get the right result.
Later on I tried, just for the test to render a scene
Root
DistortedTextureDisplayCamera
RTT Camera
GridGeometry
Camera
Scene
This is exactly the osgdistortion example with the adding of a camera
above the scene. This camera has all the default settings, which means
it does nothing, but I couldn't see anything.
Can you please explain why the first and the last graphs didn't give the
expected results? Isn't it possible to add cameras under RTT camera?
I had similar problems with depth partitioning and shadows. Does it mean
that when using RTT, these solutions have to be rearranged completely in
the aspect of the camera hierarchy?
Thanks,
Guy.
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