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Added keystone setup to vertical split stereo suport and cleaned up t…
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…he horizontal split stereo code
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@robertosfield
robertosfield committed May 7, 2013
1 parent f624c6c commit 4bcd363
Showing 1 changed file with 88 additions and 12 deletions.
100 changes: 88 additions & 12 deletions examples/osgkeystone/osgkeystone.cpp
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Expand Up @@ -993,15 +993,19 @@ void setUpViewForStereo(osgViewer::View* view, osg::DisplaySettings* ds)
} }
case(osg::DisplaySettings::HORIZONTAL_SPLIT): case(osg::DisplaySettings::HORIZONTAL_SPLIT):
{ {
bool left_eye_left_viewport = ds->getSplitStereoHorizontalEyeMapping()==osg::DisplaySettings::LEFT_EYE_LEFT_VIEWPORT;
int left_start = (left_eye_left_viewport) ? 0 : traits->width/2;
int right_start = (left_eye_left_viewport) ? traits->width/2 : 0;

// left viewport Camera // left viewport Camera
osg::ref_ptr<osg::Camera> left_camera = assignStereoCamera(view, ds, gc, osg::ref_ptr<osg::Camera> left_camera = assignStereoCamera(view, ds, gc,
0, 0, traits->width/2, traits->height, traits->doubleBuffer ? GL_BACK : GL_FRONT, left_start, 0, traits->width/2, traits->height, traits->doubleBuffer ? GL_BACK : GL_FRONT,
(ds->getSplitStereoHorizontalEyeMapping()==osg::DisplaySettings::LEFT_EYE_LEFT_VIEWPORT) ? -1.0 : 1.0); 1.0);


// right viewport Camera // right viewport Camera
osg::ref_ptr<osg::Camera> right_camera = assignStereoCamera(view, ds, gc, osg::ref_ptr<osg::Camera> right_camera = assignStereoCamera(view, ds, gc,
traits->width/2,0, traits->width/2, traits->height, traits->doubleBuffer ? GL_BACK : GL_FRONT, right_start, 0, traits->width/2, traits->height, traits->doubleBuffer ? GL_BACK : GL_FRONT,
(ds->getSplitStereoHorizontalEyeMapping()==osg::DisplaySettings::LEFT_EYE_RIGHT_VIEWPORT) ? -1.0 : 1.0); 1.0);


if (keystone.valid()) if (keystone.valid())
{ {
Expand Down Expand Up @@ -1043,7 +1047,7 @@ void setUpViewForStereo(osgViewer::View* view, osg::DisplaySettings* ds)
// create Keystone left distortion camera // create Keystone left distortion camera
keystone->gridColour.set(1.0f,0.0f,0.0,1.0); keystone->gridColour.set(1.0f,0.0f,0.0,1.0);
osg::ref_ptr<osg::Camera> left_keystone_camera = assignKeystoneDistortionCamera(view, ds, gc.get(), osg::ref_ptr<osg::Camera> left_keystone_camera = assignKeystoneDistortionCamera(view, ds, gc.get(),
0, 0, traits->width/2, traits->height, left_start, 0, traits->width/2, traits->height,
traits->doubleBuffer ? GL_BACK : GL_FRONT, traits->doubleBuffer ? GL_BACK : GL_FRONT,
left_texture, keystone.get()); left_texture, keystone.get());


Expand All @@ -1058,7 +1062,7 @@ void setUpViewForStereo(osgViewer::View* view, osg::DisplaySettings* ds)


// create Keystone right distortion camera // create Keystone right distortion camera
osg::ref_ptr<osg::Camera> right_keystone_camera = assignKeystoneDistortionCamera(view, ds, gc.get(), osg::ref_ptr<osg::Camera> right_keystone_camera = assignKeystoneDistortionCamera(view, ds, gc.get(),
traits->width/2, 0, traits->width/2, traits->height, right_start, 0, traits->width/2, traits->height,
traits->doubleBuffer ? GL_BACK : GL_FRONT, traits->doubleBuffer ? GL_BACK : GL_FRONT,
right_texture, right_keystone.get()); right_texture, right_keystone.get());


Expand All @@ -1075,15 +1079,19 @@ void setUpViewForStereo(osgViewer::View* view, osg::DisplaySettings* ds)
} }
case(osg::DisplaySettings::VERTICAL_SPLIT): case(osg::DisplaySettings::VERTICAL_SPLIT):
{ {
bool left_eye_bottom_viewport = ds->getSplitStereoVerticalEyeMapping()==osg::DisplaySettings::LEFT_EYE_BOTTOM_VIEWPORT;
int left_start = (left_eye_bottom_viewport) ? 0 : traits->height/2;
int right_start = (left_eye_bottom_viewport) ? traits->height/2 : 0;

// bottom viewport Camera // bottom viewport Camera
assignStereoCamera(view, ds, gc, osg::ref_ptr<osg::Camera> left_camera = assignStereoCamera(view, ds, gc,
0, 0, traits->width, traits->height/2, traits->doubleBuffer ? GL_BACK : GL_FRONT, 0, left_start, traits->width, traits->height/2, traits->doubleBuffer ? GL_BACK : GL_FRONT,
(ds->getSplitStereoVerticalEyeMapping()==osg::DisplaySettings::LEFT_EYE_BOTTOM_VIEWPORT) ? -1.0 : 1.0); 1.0);


// top vieport camera // top vieport camera
assignStereoCamera(view, ds, gc, osg::ref_ptr<osg::Camera> right_camera = assignStereoCamera(view, ds, gc,
0,traits->height/2, traits->width, traits->height/2, traits->doubleBuffer ? GL_BACK : GL_FRONT, 0, right_start, traits->width, traits->height/2, traits->doubleBuffer ? GL_BACK : GL_FRONT,
(ds->getSplitStereoVerticalEyeMapping()==osg::DisplaySettings::LEFT_EYE_TOP_VIEWPORT) ? -1.0 : 1.0); 1.0);


// for keystone: // for keystone:
// left camera to render to left texture using whole viewport of left texture // left camera to render to left texture using whole viewport of left texture
Expand All @@ -1092,6 +1100,74 @@ void setUpViewForStereo(osgViewer::View* view, osg::DisplaySettings* ds)
// right keystone camera to render to right viewport/window // right keystone camera to render to right viewport/window
// two keystone, one for each of the left and right viewports/windows // two keystone, one for each of the left and right viewports/windows


if (keystone.valid())
{
// for keystone:
// left camera to render to left texture using whole viewport of left texture
// right camera to render to right texture using whole viewport of right texture
// left keystone camera to render to left viewport/window
// right keystone camera to render to right viewport/window
// two keystone, one for each of the left and right viewports/windows

// create distortion texture
osg::ref_ptr<osg::Texture> left_texture = createKestoneDistortionTexture(traits->width, traits->height/2);

// convert to RTT Camera
left_camera->setViewport(0, 0, traits->width, traits->height/2);
left_camera->setDrawBuffer(GL_FRONT);
left_camera->setReadBuffer(GL_FRONT);
left_camera->setAllowEventFocus(true);
left_camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);

// attach the texture and use it as the color buffer.
left_camera->attach(osg::Camera::COLOR_BUFFER, left_texture.get());


// create distortion texture
osg::ref_ptr<osg::Texture> right_texture = createKestoneDistortionTexture(traits->width, traits->height/2);

// convert to RTT Camera
right_camera->setViewport(0, 0, traits->width, traits->height/2);
right_camera->setDrawBuffer(GL_FRONT);
right_camera->setReadBuffer(GL_FRONT);
right_camera->setAllowEventFocus(true);
right_camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);

// 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
keystone->gridColour.set(1.0f,0.0f,0.0,1.0);
osg::ref_ptr<osg::Camera> left_keystone_camera = assignKeystoneDistortionCamera(view, ds, gc.get(),
0, left_start, traits->width, traits->height/2,
traits->doubleBuffer ? GL_BACK : GL_FRONT,
left_texture, keystone.get());

left_keystone_camera->setRenderOrder(osg::Camera::NESTED_RENDER, 2);

// attach Keystone editing event handler.
left_keystone_camera->addEventCallback(new KeystoneHandler(keystone.get()));


osg::ref_ptr<Keystone> right_keystone = new Keystone;
right_keystone->gridColour.set(0.0f,1.0f,0.0,1.0);

// create Keystone right distortion camera
osg::ref_ptr<osg::Camera> right_keystone_camera = assignKeystoneDistortionCamera(view, ds, gc.get(),
0, right_start, traits->width, traits->height/2,
traits->doubleBuffer ? GL_BACK : GL_FRONT,
right_texture, right_keystone.get());

right_keystone_camera->setRenderOrder(osg::Camera::NESTED_RENDER, 3);

// attach Keystone editing event handler.
right_keystone_camera->addEventCallback(new KeystoneHandler(right_keystone.get()));

view->getCamera()->setAllowEventFocus(false);

}

break; break;
} }
case(osg::DisplaySettings::LEFT_EYE): case(osg::DisplaySettings::LEFT_EYE):
Expand Down

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