Hi all,
I would like to show a Qt widget in a 3D viewer. I would like to drag it
around, scale it and interact with it.
I looked at the osgQtWidgets example but didn't find exactly what I need. Since
I already implemented objects that are osgWidget::Window, I thought to add the
geometry got from osg::createTexturedQuadGeometry() to the osgWidget::Window
geode. So I created a Texture2D object and set to the osgWidget::Window with
setTextureAttributeAndModes(0, texture). I also set an InteractiveImageHandler
as cull callback.
The problem is that I can't see the image.
For testing I set an image loaded from file to the texture object and it works
fine. So what is missing in my code to see the Qt widget image?
Code:
osg::ref_ptr<osgWidget::Window> window = new osgWidget::Canvas;
float x = 0.0;
float y = 0.0;
float width = widget->size().width();
float height = widget->size().height();
osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
osg::ref_ptr<osg::Geometry> quad;
//std::string imageFile = "C:/Users/User/Desktop/test.jpg";
//osg::ref_ptr<osg::Image> image = osgDB::readImageFile(imageFile);
//texture->setImage(image.get());
osg::ref_ptr<osgQt::QWidgetImage> widgetImage = new
osgQt::QWidgetImage(widget);
texture->setImage(widgetImage.get());
quad = osg::createTexturedQuadGeometry(osg::Vec3(x, y,0.0f),//center
osg::Vec3(width,0.0f,0.0f),//width
osg::Vec3(0.0f,height,0.0) );//height
osg::StateSet* stateset = quad->getOrCreateStateSet();
stateset->setTextureAttributeAndModes(0, texture.get());
stateset->setRenderBinDetails(1, "DepthSortedBin",
osg::StateSet::OVERRIDE_RENDERBIN_DETAILS);
osgViewer::InteractiveImageHandler* handler = new
osgViewer::InteractiveImageHandler(widgetImage.get());
quad->setCullCallback(handler);
window->getGeode()->addDrawable(quad);
Regards,
Gianni
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=63994#63994
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