Hi,
I would like to have simultaneously many points of view of the same scene. I
try to obtain this by using the CompositeViewer.
I use the following code, but it doesn't work. Nothing appear to the second
window. And in the first, the camera properties aren't those I give in the
code! When I don't change camera properties of the second view (ie I
deactivate the lines after the flag "//view2 camera properties"), the view 1
appears correctly and the view 2 also appears with camera default
properties.
Can somebody help me?
I have also a question:
Is that possible to display two views of the same scene with only one window
(by using functions like camera->setUpViewInWindow...)?
How can I explained to the object view2 to use the same windows as the
object view?
Best Regards,
Jean-Baptiste.
*********************************************************************************************************************************
// Create a viewer
osgViewer::CompositeViewer * viewer = new osgViewer::CompositeViewer;
/***************************** View 1 ********************************/
osgViewer::View* view = new osgViewer::View;
//create a manipulator
Manipulator * MyManipulator = new Manipulator(view, MyCameraHandler);
view->setCameraManipulator(MyManipulator);
view->setSceneData(root);
viewer->addView(view);
/***************************** View 2 ***********************************/
osgViewer::View* view2 = new osgViewer::View;
Manipulator * MyManipulator2 = new Manipulator(view2, MyCameraHandler);
view2->setCameraManipulator(MyManipulator2);
view2->setSceneData(root);
viewer->addView(view2);
// set graphic window properties
view->setUpViewInWindow(0,0,200,200);
view2->setUpViewInWindow(200,200,200,200);
/********************************************* start the rendering
**************************************/
while(!viewer->done())
{
if(!viewer->isRealized()) //realize the graphic context and set a
default camera
{
viewer->realize();
}
/**************************** Initialize the camera of the different
views *********************************/
if (!cam_ini)
{
// View 1
osg::Camera* camera = view->getCamera();
camera->setClearColor(osg::Vec4(0.5f,0.5f,0.5f,1.0f));
camera->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
CameraHandler::Cam * cameraprop =
MyCameraHandler->GetCameraAtIndex(5);
if (cameraprop != NULL)//if camera index is valid
{
MyManipulator->setHomePosition(cameraprop->Position,cameraprop->Target,cameraprop->up);
MyManipulator->home(0);
camera->setProjectionMatrixAsPerspective(cameraprop->Fovy,cameraprop->AspectRatio,cameraprop->Near,cameraprop->Far);
camera->setViewport (0, 0, cameraprop->width,
cameraprop->height);
}
//View 2 camera properties
camera = view2->getCamera();
camera->setClearColor(osg::Vec4(0.8f,0.0f,0.0f,1.0f));
camera->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//select the default camera
cameraprop = MyCameraHandler->GetCameraAtIndex(4);
if (cameraprop != NULL)//if camera index is valid
{
MyManipulator->setHomePosition(cameraprop->Position,cameraprop->Target,cameraprop->up);
MyManipulator->home(0);
camera->setProjectionMatrixAsPerspective(cameraprop->Fovy,cameraprop->AspectRatio,cameraprop->Near,cameraprop->Far);
camera->setViewport (201, 201, 200, 200);
}
cam_ini=true;
}
viewer->frame();
}
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