Hi,
I am trying to find mouse positions on a window when I use slave cameras.
Firstly, I tested the positions with camera manuplator.
In this case, if I check the position of left - bottom on windows,
it used to be 0.0, 0.0.
And if the windows size are width = 100 and height = 100, the position of right
- top used to be 100,100.
However, when I use slave cameras on windows, the position valuse changes.
for examples, 1.01.., 2.0.... I don't know why the position valuse is not
matched with windows size as I expected.
Is there anyone who knows that?
hear are codes.
// left window + left slave camera
{
osg::ref_ptr<osg::GraphicsContext::Traits> traits = new
osg::GraphicsContext::Traits;
traits->x = xoffset + 0;
traits->y = yoffset + 0;
traits->width = windowsize_width;
traits->height = windowsize_height;
traits->windowDecoration = true;
traits->doubleBuffer = true;
traits->sharedContext = 0;
osg::ref_ptr<osg::GraphicsContext> gc =
osg::GraphicsContext::createGraphicsContext(traits.get());
osg::ref_ptr<osg::Camera> camera = new osg::Camera;
camera->setGraphicsContext(gc.get());
camera->setViewport(new osg::Viewport(0,0, traits->width,
traits->height));
GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
camera->setDrawBuffer(buffer);
camera->setReadBuffer(buffer);
// add this slave camera to the viewer, with a shift left of
the projection matrix
viewer.addSlave(camera.get(),
osg::Matrixd::translate(0.0,0.0,0.0), osg::Matrixd());
}
bool GameEventHandler::handle(const osgGA::GUIEventAdapter&
ea,osgGA::GUIActionAdapter& aa)
{
float x = ea.getX();
float y = ea.getY();
std::cout<<x<<","<<y<<std::endl;
}
...
Thank you!
Cheers,
HyeongCheol
Code:
Code:
Code:
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http://forum.openscenegraph.org/viewtopic.php?p=26217#26217
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