Hi,
I want to implement color picking for my application using rendering to temp
buffer (back_buffer) every element in different color (
http://content.gpwiki.org/index.php/OpenGL_Selection_Using_Unique_Color_IDs ).
Is there any option in osg how to to this ... personally i would prefer
something like this:
Code:
class ColorPicking : public osgGA::GUIEventHandler
{
handle(const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa)
{
if (ea.getEventType() == osgGA::GUIEventAdapter::PUSH)
{
// setup buffers
// draw content of aa
// readPixels
}
return false;
}
};
Reason is pretty simple: it's really hard to intersect complex things, things
cropped with stencil, untesselated polygons with holes ... etc.
Thank you!
Cheers,
Filip[/code]
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=43450#43450
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