Hi,
I made a scene, where I detect some collisions and I want to show progress of
that collision. For example, you are poiniting at light switch and there is
circle which is filled based on time spent pointing at the switch, so the light
would turn/off after some timer period.
That "filling cricle" is saved in images 1.png, 2.png...
Then I make a textured quad
Add quad to osg::Billboard ( I want that status bar will always be towards
camera )
Add osg::Billboard to osg::Switch to switch between states (based on timer )
Here is code
Code:
osg::ref_ptr<osg::Image> image1 = osgDB::readImageFile("1.png");
osg::ref_ptr<osg::Texture2D> texture1 = new osg::Texture2D;
texture1->setImage( image1.get() );
osg::ref_ptr<osg::Geometry> quad1 = osg::createTexturedQuadGeometry(
osg::Vec3(-0.5f, 0.0f,-0.5f),
osg::Vec3(1.0f,0.0f,0.0f),
osg::Vec3(0.0f,0.0f,1.0f) );
osg::StateSet* ss1 = quad1->getOrCreateStateSet();
ss1->setTextureAttributeAndModes( 0, texture1.get() );
ss1->setMode(GL_BLEND,osg::StateAttribute::ON);
ss1->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
osg::ref_ptr<osg::Billboard> timer1 = new osg::Billboard;
timer1->setMode(osg::Billboard::POINT_ROT_EYE);
timer1->addDrawable( quad1.get());
osg::Switch* switcher = new osg::Switch;
switcher->addChild( timer1.get(),true);
rootNode->addChild( switcher);
This works well, but problem is that if there is some object between status bar
and camera then status bar is covered. I want to render status bar always on
top at the point of collision (intersection).
What should I use? I tried HUD Camera, but didnt succed ( it just didnt render
anything)
Thank you!
Cheers
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=58138#58138
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