FGFS-4.1/OpenSceneGraph
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Added DisplaySettings to osg::Camera, and support into osg::View for initializing

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the Camera to the DisplaySettings ScreenWidth/Height/Distance.  Added support
for dual screen horizontal split stereo.
This commit is contained in:
Robert Osfield
2007-06-09 10:06:38 +00:00
parent e3d7e6e173
commit 90ae3f385b
6 changed files with 73 additions and 29 deletions
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29
src/osgViewer/View.cpp
View File

@@ -316,6 +316,10 @@ void View::setUpViewAcrossAllScreens()
wsi->getScreenResolution(osg::GraphicsContext::ScreenIdentifier(i), width, height);
translate_x += double(width) / (double(height) * aspectRatio);
}
bool stereoSlitScreens = numScreens==2 &&
ds->getStereoMode()==osg::DisplaySettings::HORIZONTAL_SPLIT &&
ds->getStereo();
for(unsigned int i=0; i<numScreens; ++i)
{
@@ -335,7 +339,9 @@ void View::setUpViewAcrossAllScreens()
traits->sharedContext = 0;
traits->sampleBuffers = ds->getMultiSamples();
traits->samples = ds->getNumMultiSamples();
if (ds->getStereo() && (ds->getStereoMode() == osg::DisplaySettings::QUAD_BUFFER)) {
if (ds->getStereo() && (ds->getStereoMode() == osg::DisplaySettings::QUAD_BUFFER))
{
traits->quadBufferStereo = true;
}
@@ -362,11 +368,24 @@ void View::setUpViewAcrossAllScreens()
camera->setDrawBuffer(buffer);
camera->setReadBuffer(buffer);
double newAspectRatio = double(traits->width) / double(traits->height);
double aspectRatioChange = newAspectRatio / aspectRatio;
if (stereoSlitScreens)
{
unsigned int leftCameraNum = (ds->getSplitStereoHorizontalEyeMapping()==osg::DisplaySettings::LEFT_EYE_LEFT_VIEWPORT) ? 0 : 1;
osg::ref_ptr<osg::DisplaySettings> ds_local = new osg::DisplaySettings(*ds);
ds_local->setStereoMode(leftCameraNum==i ? osg::DisplaySettings::LEFT_EYE : osg::DisplaySettings::RIGHT_EYE);
camera->setDisplaySettings(ds_local.get());
addSlave(camera.get(), osg::Matrixd(), osg::Matrixd() );
}
else
{
double newAspectRatio = double(traits->width) / double(traits->height);
double aspectRatioChange = newAspectRatio / aspectRatio;
addSlave(camera.get(), osg::Matrixd::translate( translate_x - aspectRatioChange, 0.0, 0.0) * osg::Matrix::scale(1.0/aspectRatioChange,1.0,1.0), osg::Matrixd() );
translate_x -= aspectRatioChange * 2.0;
addSlave(camera.get(), osg::Matrixd::translate( translate_x - aspectRatioChange, 0.0, 0.0) * osg::Matrix::scale(1.0/aspectRatioChange,1.0,1.0), osg::Matrixd() );
translate_x -= aspectRatioChange * 2.0;
}
}
}