Hi Mukend,
If you are creating your own viewer cameras and associated graphics
contexts then you don't need to call any of the setUpView*() methods,
otherwise you will just end up with the windows and camera it creates
and the ones you create.
Also when you are not using quad buffer stereo the draw/read buffers
of the camera should just be set the GL_BACK.
Robert.
On Tue, Mar 29, 2011 at 9:06 PM, Mukund Keshav <osgfo...@tevs.eu> wrote:
> Hi Robert,
>
> Well this is the code i have written so far, im getting two windows when i
> specify quadBufferStereo as false.
>
>
> Code:
> int main( int argc, char **argv )
> {
>
> // if not loaded assume no arguments passed in, try use default mode
> instead.
> osg::ref_ptr<osg::MatrixTransform> object = new osg::MatrixTransform;
> osg::ref_ptr<osg::Node> obj = osgDB::readNodeFile("cow.osg");
> object->addChild(obj);
>
> //
> =============================================================================
> // construct the viewer.
> osgViewer::Viewer viewer;
>
>
> viewer.setUpViewInWindow(100, 100, 640, 480);
> //
> ==============================================================================
>
>
> //
> ==============================================================================
> // Place the object.
> osg::Matrix m, s;
> m.makeTranslate(0, 0, -4000);
> s.makeScale(50, 50, 50);
>
> object->setMatrix(osg::Matrix::identity());
> object->setMatrix(s * m);
> //
> ==============================================================================
>
>
> osg::ref_ptr<osg::GraphicsContext::Traits> traits = new
> osg::GraphicsContext::Traits;
> traits->width = 640;
> traits->height = 480;
> traits->windowDecoration = true;
> traits->doubleBuffer = true;
> traits->sharedContext = 0;
> //traits->quadBufferStereo = true;
>
> osg::ref_ptr<osg::GraphicsContext> gc =
> osg::GraphicsContext::createGraphicsContext(traits.get());
>
> // ========================= Left eye
> ====================================================
> osg::ref_ptr<osg::Camera> camera = new osg::Camera;
> osg::Matrix lookPos1;
>
> lookPos1.lookAt( osg::Vec3f(0, 0, 8000), osg::Vec3f(0, 0, 0),
> osg::Vec3f(0, 1, 0) );
>
> camera->setViewMatrix(osg::Matrix::identity());
> camera->setViewMatrix(lookPos1);
> camera->setViewport(0, 0, 640, 480);
>
> camera->setGraphicsContext(gc.get());
> camera->setDrawBuffer(GL_BACK_LEFT);
>
> camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
> camera->setProjectionMatrixAsFrustum(-640, 640, -480, 480, 1900,
> 200000);
>
> osg::ColorMask *col1 = new osg::ColorMask;
> col1->setRedMask(true);
> osg::StateSet *state1 = new osg::StateSet;
> state1->setAttribute(col1);
>
> camera->setStateSet(state1);
>
> // add this slave camera to the viewer, with a shift left of the
> projection matrix
> viewer.addSlave(camera.get(), osg::Matrixd::translate(params),
> osg::Matrixd());
>
>
> // ========================= Right eye
> ====================================================
> osg::ref_ptr<osg::Camera> camera1 = new osg::Camera;
> osg::Matrix lookPos2;
>
> lookPos2.lookAt( osg::Vec3f(0, 0, 8000), osg::Vec3f(0, 0, 0),
> osg::Vec3f(0, 1, 0) );
>
> camera1->setViewMatrix(osg::Matrix::identity());
> camera1->setViewMatrix(lookPos2);
> camera1->setViewport(0, 0, 640, 480);
>
> camera1->setGraphicsContext(gc.get());
> camera1->setDrawBuffer(GL_BACK_RIGHT);
>
> camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
> camera1->setProjectionMatrixAsFrustum(-640, 640, -480, 480, 1900,
> 200000);
>
> osg::ColorMask *col2 = new osg::ColorMask;
> col2->setRedMask(true);
> osg::StateSet *state2 = new osg::StateSet;
> state1->setAttribute(col2);
>
> camera1->setStateSet(state2);
>
>
> // add this slave camera to the viewer, with a shift right of the
> projection matrix
> viewer.addSlave(camera1.get(), osg::Matrixd::translate(params),
> osg::Matrixd());
>
> //
> ===========================================================================================
>
>
> // set the scene to render
> viewer.setSceneData(object.get());
>
> viewer.run();
>
> }
>
>
>
>
>
> Here is a snapshot of the output: im not sure where i'm going wrong. The cow
> model appears black.
>
> http://img220.imageshack.us/i/88575177.png/
>
> Also, im getting the following warning:
> detected OpenGL error , invalid operation , after RenderBin::draw(,)
>
> Could you please help?
>
> Thanks,
> Mukund
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=38037#38037
>
>
>
>
>
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>
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