Hello
I'm trying to embed osg in an SFML window. I found some examples and managed to
include an osgViewer. However there is a problem with the rendering. I'm not
sure what exactly is happening but it looks like if the normals get messed up
or so, see the attached image.
According to examples and posts I found it should work. Also since ATM I'm not
rendering anything with SFML. I also found this post indicating some problems,
but since I'm a beginner I'm not sure if it matters: "Notify OSG when OpenGL
state gets modified externally (e.g. by SFML)" (can't post links)
Also I don't have the push/popGLStates..
Here's my test code:
Code:
// compile e.g.:
// g++ sfml-test.cpp -o sfml-test -lsfml-window -lsfml-graphics -lsfml-system
-losg -losgViewer -losgDB -losgGA
#include <iostream>
// SFML
#include <SFML/Window.hpp>
//#include <SFML/Graphics.hpp>
// OpenSceneGraph
#include <osg/PositionAttitudeTransform>
//#include <osg/ShapeDrawable>
#include <osgViewer/Viewer>
#include <osgGA/TrackballManipulator>
//#include <osgGA/OrbitManipulator>
#include <osgDB/ReadFile>
using namespace std;
int main() {
// SFML Window
sf::Window window;
window.create(sf::VideoMode(800, 600), "My window");
window.setVerticalSyncEnabled(true);
sf::Vector2u size = window.getSize();
// OSG
// load model from file
osg::ref_ptr<osg::Node> model (osgDB::readNodeFile("cessna.osgt"));
if (!model) {
cout << "3D model not found, leaving..." << endl;
return 1;
}
// create model position-attitude transformer
osg::ref_ptr<osg::PositionAttitudeTransform> model_pat (new
osg::PositionAttitudeTransform);
// add the object geode as a child of the object PAT
model_pat->addChild(model.get());
// set up scene graph
//
// root --> model_pat --> model
//
// creating the root node
osg::ref_ptr<osg::Group> root (new osg::Group);
root->addChild(model_pat.get());
//Creating the viewer
osgViewer::Viewer viewer;
osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> gw =
viewer.setUpViewerAsEmbeddedInWindow(0, 0, size.x, size.y);
// set scene to render and run
viewer.setSceneData(root.get());
// attach a trackball manipulator to all user control of the view
// (needed when loop is used below)
//osgGA::OrbitManipulator* om = new osgGA::OrbitManipulator;
osgGA::TrackballManipulator* om = new osgGA::TrackballManipulator;
viewer.setCameraManipulator(om);
viewer.getCameraManipulator()->setHomePosition( osg::Vec3d(30,-50,30),
// eye
osg::Vec3d(0,0,0),
// center
osg::Vec3d(0,0,1)
// up
);
viewer.home();
// instead of returning, use loop now
viewer.realize();
/*auto state = gw->getState();
state->setUseModelViewAndProjectionUniforms(true);
state->setUseVertexAttributeAliasing(true);*/
// GAME LOOP
while (window.isOpen()) {
// --> read input
sf::Event event;
while (window.pollEvent(event)) {
switch(event.type) {
case sf::Event::Closed:
window.close();
break;
case sf::Event::KeyPressed:
if (event.key.code == sf::Keyboard::Escape) {
window.close();
}
break;
case sf::Event::Resized:
gw->resized(0, 0, event.size.width, event.size.height);
break;
}
}
window.setActive();
//window.pushGLStates();
// OSG Viewer step
viewer.frame();
//window.popGLStates();
window.display();
}
return 0;
}
Any ideas ?
Thanks!
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=69185#69185
Attachments:
http://forum.openscenegraph.org//files/screen_osg_150.jpg
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