Well, we can deceive viewer if we make so:
Code:
viewer.getLight()->setAmbient(osg::Vec4(0.0,0.0,0.0,1.0));
viewer.getLight()->setPosition(osg::Vec4(0.0,0.0,0.0,1.0));
viewer.getLight()->setDiffuse(osg::Vec4(0.0,0.0,0.0,1.0));
viewer.getLight()->setConstantAttenuation(0.003);
viewer.getLight()->setLinearAttenuation(0.1);
viewer.getLight()->setQuadraticAttenuation(0.1);
viewer.getLight()->setName("global_light");
viewer.getLight()->setLightNum(0);
viewer.setLightingMode(osg::View::SKY_LIGHT);
The light source still be exist, but will be invisible.
Cheers,
Nickolai
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=67426#67426
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