Re: [osg-users] Add a color node in the scenegraph?
Hello, I tried what you said, but it doesn't work.
Do you see an error in my code ?
Code:
osg::ref_ptr sphere = new osg::Sphere(osg::Vec3f(0.0, 0.0, 0.0),
.5f);
osg::ref_ptr sphereDrawable = new
osg::ShapeDrawable(sphere.get());
sphereDrawable->getOrCreateStateSet()->setMode(osg::StateAttribute::BLENDCOLOR,
osg::StateAttribute::ON);
osg::ref_ptr sphereGeode = new osg::Geode();
sphereGeode->addDrawable(sphereDrawable.get());
osg::Matrix I = osg::Matrix::identity();
osg::ref_ptr mtI = new osg::MatrixTransform(I);
mtI->addChild(sphereGeode.get());
double x = 0.0;
for (int k = 0; k < 10; k++) {
osg::ref_ptr patSphere = new
osg::PositionAttitudeTransform();
patSphere->setPosition(osg::Vec3f(x, 0.0, 0.0));
if (k == 5) {
osg::BlendColor* bc = new osg::BlendColor(osg::Vec4(1.0, 0.0,
0.0, 1.0));
patSphere->getOrCreateStateSet()->setAttributeAndModes(bc,
osg::StateAttribute::ON);
patSphere->getOrCreateStateSet()->setMode(osg::StateAttribute::BLENDCOLOR,
osg::StateAttribute::ON);
}
patSphere->addChild(mtI.get());
root->addChild(patSphere.get());
}
Thanks. :)
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http://forum.openscenegraph.org/viewtopic.php?p=26754#26754
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Re: [osg-users] Add a color node in the scenegraph?
Vincent Bourdier wrote: Hello, You should try just adding a material on each PAT. If I'm right, material will overpass the color of the geode... If anyone can confirm :-[ That will work if lighting is on. If lighting is off, set a BlendColor at each PAT and then configure blending on the Drawable to reference the blend color. Le 07/04/2010 11:33, Benjamin GODIN a écrit : Hello, I have a scene with one object but represented many times. My graph is something like that : [Image: http://img576.imageshack.us/img576/1522/osg.png ] I want to give different colors to the different objects. The method I've found is setColor on a ShapeDrawable but that means I need to create many instances of this object. Is there any way I can add the color in the scene graph (as a node)? Thanks. :)[/img] -- -Paul Martz Skew Matrix Software http://www.skew-matrix.com/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Add a color node in the scenegraph?
Hello, You should try just adding a material on each PAT. If I'm right, material will overpass the color of the geode... If anyone can confirm :-[ Regard, Vincent Le 07/04/2010 11:33, Benjamin GODIN a écrit : Hello, I have a scene with one object but represented many times. My graph is something like that : [Image: http://img576.imageshack.us/img576/1522/osg.png ] I want to give different colors to the different objects. The method I've found is setColor on a ShapeDrawable but that means I need to create many instances of this object. Is there any way I can add the color in the scene graph (as a node)? Thanks. :)[/img] -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26507#26507 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Add a color node in the scenegraph?
Hello, I have a scene with one object but represented many times. My graph is something like that : [Image: http://img576.imageshack.us/img576/1522/osg.png ] I want to give different colors to the different objects. The method I've found is setColor on a ShapeDrawable but that means I need to create many instances of this object. Is there any way I can add the color in the scene graph (as a node)? Thanks. :)[/img] -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=26507#26507 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
