FGFS-4.1/OpenSceneGraph
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Added a dedicated RTT texture for each of the left and right eyes when doing ANAGLYPHIC stereo to avoid issues with scene graphs containing ClearNode's such as when using in Present3D

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This commit is contained in:
Robert Osfield 2013-05-20 10:23:03 +00:00
parent 482581feb0
commit 086ffd1672
1 changed files with 100 additions and 35 deletions
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67
src/osgViewer/View.cpp
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@ -1578,6 +1578,70 @@ void View::setUpViewForStereo()
osg::ref_ptr<Keystone> keystone = keystones.front();
bool useTwoTexture = true;
if (useTwoTexture)
{
// create left distortion texture
osg::ref_ptr<osg::Texture> left_texture = createDistortionTexture(traits->width, traits->height);
// convert to RTT Camera
left_camera->setDrawBuffer(GL_FRONT);
left_camera->setReadBuffer(GL_FRONT);
left_camera->setAllowEventFocus(false);
left_camera->setRenderOrder(osg::Camera::NESTED_RENDER, 0);
left_camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
left_camera->getOrCreateStateSet()->removeAttribute(osg::StateAttribute::COLORMASK);
left_camera->setClearMask(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
// attach the texture and use it as the color buffer.
left_camera->attach(osg::Camera::COLOR_BUFFER, left_texture.get());
// create left distortion texture
osg::ref_ptr<osg::Texture> right_texture = createDistortionTexture(traits->width, traits->height);
// convert to RTT Camera
right_camera->setDrawBuffer(GL_FRONT);
right_camera->setReadBuffer(GL_FRONT);
right_camera->setAllowEventFocus(false);
right_camera->setRenderOrder(osg::Camera::NESTED_RENDER, 1);
right_camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
right_camera->getOrCreateStateSet()->removeAttribute(osg::StateAttribute::COLORMASK);
right_camera->setClearMask(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
// attach the texture and use it as the color buffer.
right_camera->attach(osg::Camera::COLOR_BUFFER, right_texture.get());
// create Keystone left distortion camera
osg::ref_ptr<osg::Camera> left_keystone_camera = assignKeystoneDistortionCamera(ds, gc.get(),
0, 0, traits->width, traits->height,
traits->doubleBuffer ? GL_BACK : GL_FRONT,
left_texture.get(), keystone.get());
left_keystone_camera->setRenderOrder(osg::Camera::NESTED_RENDER, 2);
left_keystone_camera->setClearMask(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
left_keystone_camera->getOrCreateStateSet()->setAttribute(new osg::ColorMask(true, false, false, true));
// create Keystone right distortion camera
osg::ref_ptr<osg::Camera> right_keystone_camera = assignKeystoneDistortionCamera(ds, gc.get(),
0, 0, traits->width, traits->height,
traits->doubleBuffer ? GL_BACK : GL_FRONT,
right_texture.get(), keystone.get());
right_keystone_camera->setRenderOrder(osg::Camera::NESTED_RENDER, 3);
right_keystone_camera->setClearMask(GL_DEPTH_BUFFER_BIT);
right_keystone_camera->getOrCreateStateSet()->setAttribute(new osg::ColorMask(false, true, true, true));
// attach Keystone editing event handler.
right_keystone_camera->addEventCallback(new KeystoneHandler(keystone.get()));
getCamera()->setAllowEventFocus(false);
}
else
{
// create distortion texture
osg::ref_ptr<osg::Texture> texture = createDistortionTexture(traits->width, traits->height);
@ -1585,7 +1649,7 @@ void View::setUpViewForStereo()
left_camera->setDrawBuffer(GL_FRONT);
left_camera->setReadBuffer(GL_FRONT);
left_camera->setAllowEventFocus(false);
right_camera->setRenderOrder(osg::Camera::NESTED_RENDER, 0);
left_camera->setRenderOrder(osg::Camera::NESTED_RENDER, 0);
left_camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
// attach the texture and use it as the color buffer.
@ -1614,6 +1678,7 @@ void View::setUpViewForStereo()
// attach Keystone editing event handler.
camera->addEventCallback(new KeystoneHandler(keystone.get()));
}
}
break;
}