Hi Erik,
Do you mean glowing like non-lit but selfillumination? Then you're maybe
after the setEmission property.
If you want a glow like bloom-effect, then you'll need some image
postprocessing or texture tricks.
Maybe you can send some picture which resembles what you are trying to
achieve.
BTW: your geometry doesn't have any normals, so lighting will be wrong
in any case.
Cheers
Sebastian
Hello everyone!
I'm generating a sphere geode and I'd like to add a glowing effect in any
variable color. I've only found one other similar topic on these forums but
there was no answer. I imagine this must be possible, I just don't know how to
do it. I've posted my code that creates the geode.
Any and all help is very much appreciated!
Code:
// The center of my sphere
osg::Vec3 tSphereCenter(0.0f, 0.0f, 0.0f);
// Create the geode
osg::ref_ptr < osg::Geode > pGeode = new osg::Geode;
// Create the geometry
osg::ref_ptr < osg::Geometry > pGeometry = new osg::Geometry;
// The vertex array that defines the shape of the sphere
osg::ref_ptr < osg::Vec3Array > pVertexArray = new osg::Vec3Array;
//
// Add vertices to pVertexArray using an icosahedron approach...
// How this is done is not relevant to this question...
//
// Set this as the geometry's vertex array
pGeometry->setVertexArray(pVertexArray);
// Set the primitive set
osg::ref_ptr < osg::DrawArrays > pDrawArrays = new
osg::DrawArrays(osg::PrimitiveSet::TRIANGLES, 0, static_cast < GLsizei
>(pVertexArray->size()));
pGeometry->addPrimitiveSet(pDrawArrays);
// Get the state set
osg::ref_ptr < osg::StateSet > pStateSet = pGeometry->getOrCreateStateSet();
// Create the material
osg::ref_ptr < osg::Material > pMaterial = new osg::Material;
// Set the sphere color to red
pMaterial->setDiffuse(osg::Material::FRONT_AND_BACK, osg::Vec4(1.0f, 0.0f,
0.0f, 1.0f));
// Make the sphere shiny
pMaterial->setShininess(osg::Material::FRONT_AND_BACK, 128.0f);
// Set the material on the geometry's state set
pStateSet->setAttribute(pMaterial);
// Finish up with the geometry
pStateSet->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
pGeometry->setStateSet(pStateSet);
// Add this geometry to the geode
pGeode->addDrawable(pGeometry);
// Ensure the geode is visible
pGeode->setNodeMask(0xffffffff);
// Smooth out the material
osgUtil::SmoothingVisitor sv;
pGeode->accept(sv);
// Add the geode to the scene
pSceneGroup->addChild(pGeode);
Thank you very much!
Cheers,
Erik[/code]
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=65690#65690
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