May be it is that blending is not turned on :
stateSet->setMode(GL_BLEND, StateAttribute::ON);
Can
2008/11/4 Renan Mendes <[EMAIL PROTECTED]>
> Hi,
> In my application, I'm trying to create a point (a small sphere) and
> alter its properties, like shininess and transparency. When I execute the
> following method, the point is created with shininess effects alright.
> However, no matter how much I change the values related to transparency
> (values from 0. to 1.), nothing seems to be different in my view...
> What do I have to do to get the right result?
>
> osg::Geode* Point::createPoint(osg::Vec3f position)
>
> {
>
> this->geode = new osg::Geode() // geode is an
> osg::ref_ptr<osg::Geode>, member of my class
>
> this->drawable = new osg::ShapeDrawable(new
> osg::Sphere(position, RADIUS)); // drawable is an
>
>
> // osg::ref_ptr<osg::Drawable>, member
> of my class
>
> this->drawable->setColor(osg::Vec4(0.0, 0.0, 1.0, 1.0));
>
> this->geode->addDrawable(this->drawable);
>
> this->material -> setColorMode(osg::Material::DIFFUSE);
>
> this->material -> setAmbient(osg::Material::FRONT_AND_BACK,
> osg::Vec4(1, 1, 1, 1));
>
> this->material ->
> setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
>
> this->material ->
> setShininess(osg::Material::FRONT_AND_BACK, 128.0f);
>
> this->material ->
> setTransparency(osg::Material::FRONT_AND_BACK, 0.5f);
>
> geode -> getOrCreateStateSet() ->
> setAttributeAndModes(this->material.get(), osg::StateAttribute::ON);
>
>
>
> return geode.get();
>
> }
>
> Thanks for your help,
>
> Renan
>
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>
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