Hello,

 

After setting up my application for using the ShadowStage core I have a
problem that can't resolve. I have a scene with the shadow stage object
in its root core. Now, I have two kinds of windows in my app, which
render this scene (not necessarily simultanously). The first one
contains a OSG::Win32Window window and renders the shadowed scene fairly
well. However, the second window is one for which I manage the GL -
context  myself. It uses a PassiveBackground and a PassiveViewport. I
have the following problem on rendering in this window:

 

The background is completely black. If I rotate the scene (which
actually shows the shadows) I can see that no clearing is performed
anymore. Without using the ShadowStage core everythink is just fine.

 

The performance is bad due to the map size I have choosen. But what is a
reasonable size? What value is typically used and what are the measures
to take into account for finding an appropriate value?

 

Could anyone give me some advice here?

Has anyone a idea with respect to the clearing operation?

 

Best,

Johannes

 


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