[osg-users] Shadow in GraphicsWindowEmbedded

Cong Ye sirian_ye at hotmail.com
Wed Aug 29 18:45:01 PDT 2018

Hi Robert

Thanks very much for your reply. I check the osgQt after your suggestion, I know the problem now. However, it still doesn't work after I add gl_back. As it is not high priority, I will implement shadow myself later. 

robertosfield wrote:
> On Thu, 16 Aug 2018 at 09:29, Cong Ye <> wrote:
> > I am currently using the osgShadow NodeKist. It only works when I use osgViewer as default graphics context. Now the case is, I have to assign a third party graphics context to the main camera as we are using a Qt Gui for buttons etc. After I assign osgViewer::GraphicsWindowEmbedded to the main camera, the scene cannot be drawn. Only clear color is displayed. So I assume that since the graphics context has been changed, do i have to specify where the shadow texture need to be binded?
> > 
> There isn't any special you need to do with osgShadow, it'll be
> looking after itself.
> The problem you have is mostly likely down to the issues with the Qt
> integration, and using osgShadow isn't revelling this exisiting
> problem rather than causing it.
> My best guess is that you haven't set the Draw/ReadBuffers correctly
> for you viewer level Cameras.
> If this doesn't work then please think about using osgQt.
> Robert.
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