[osg-users] Slave camera lighting with disabled main camera

[Robert Osfield]

HI Ravi,

On 10 January 2018 at 14:53, Ravi Mathur <ravidavi at utexas.edu> wrote:
> I just checked, and the same behavior & solution exists on master.

Looking at the internal setup of the rendering backend I think the
reason for the behavior is that the Renderer implement found in
OpenSceneGraph/src/osgViewer/Renderer.cpp constructor reads the View's
LightingMode and then passes this on to the SceneView's it setups to
do the rendering.  This setup happens when you add the slave cameras.

I think the problem comes in that the osg::View::LightingMode value
isn't passed onto the SceneView's by the Renderer's.

Attached is a modification of src/osgViewer/Renderer.cpp that passes
the View::LightingMode value to the SceneView on each new cull
traversal.

Could you try this out to see if it works, if so I'll check it in.

Robert.
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