Hello, I am learning to use *Transparency Effect* on OpenSceneGraph. I don't know if I am doing it right. I have made a video screen capture. I do think that I missed something.... http://www.youtube.com/watch?v=Kzm_1X55OIM
I have multiple shapes. I attached a *osg::Material* attribute to some of them.The third sphere (nearst to the user) is set to be transparent up to 40%. // Enable blending, select transparent bin. > stateSet->setMode( GL_BLEND, osg::StateAttribute::ON ); > stateSet->setRenderingHint( osg::StateSet::TRANSPARENT_BIN ); > > // Material > osg::Material * _material = new osg::Material; > _material->setAlpha( osg::Material::FRONT_AND_BACK, 0.4f ); > _material->setColorMode( osg::Material::AMBIENT ); > stateSet->setAttributeAndModes( _material , osg::StateAttribute::ON ); > > // Blending > osg::ref_ptr<osg::BlendFunc> blendFunc = new osg::BlendFunc; > blendFunc->setFunction( osg::BlendFunc::SRC_ALPHA , > osg::BlendFunc::ONE_MINUS_SRC_ALPHA ); > stateSet->setAttributeAndModes( blendFunc ); > 1. Have I done it right ?? 2. let suppose I would like to modify the transparency of a Node picked ??? Should I get its material attribute and modify its *Alpha* ?? 3. In case, the video show a small lack of transparency between the two cylinders and the sphere ?? is it normal ?? or I missed the *osg::Depth *attribute ?? Thank you for advance for your help Cheers ps: video http://www.youtube.com/watch?v=Kzm_1X55OIM *--* *M. ALJI Mohamed*
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