Gurus, What is the reason for keeping LightSource in OSG?
I successfully removed all osg::LightSources from my scene graph and used just osg::Light - it is well placed and follows the transformation of the parent node (f.ex. locomotive) as it moves. Except absolute reference frame, is there any reason for LightSource existence in OSG? I think yes, but missing arguments.
Thx for explanation, John Thrall, Bryan wrote:
You place the LightSource in the scene graph where you want the light to be positioned. I don't think it is necessary for directional lights (they are infinitely far away, so don't have a position), but say you want a spotlight attached to a train locomotive. You could update osg::Light's position every time the locomotive moves, or you could attach a LightSource to the locomotive's scene graph and have the light placed correctly automatically.
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