[osg-users] osgFX::Outline lose material color while GL_LIGHTING set OFF

[Franco Tang]

robertosfield wrote:
> Hi GG,
> 
> 
> When you switch off fixed function lighting via GL_LIGHTING you change the way that OpenGL's fixed function pipeline is configured so it no longer uses the glMaterial/osg::Material values and only uses the glColor/ColorArray (osg::Geometry::setColorArray(..) values.
> 
> 


Thanks, Robert.
The color issue is about line which osgFX::Outline producted, not about osg::Drawable itself. I meant when I switched off GL_LIGHTING related with Drawable,  the color of outline went wrong.  I checked the source about osgFX::Outline and found that it used a class of Outline::OutlineTechnique derived  from osgFX::Technique. I don't very understand the mechanism about osgFX::Effect.
I would appreciated it if you give me some information about mechanism osgFX::Effect used.

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