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simulate real cameras by working around vtkUserTransform to set projection matrix

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This commit is contained in:
ozantonkal 2013-08-07 16:20:23 +02:00
parent 422b967e9a
commit 71dc5f8291
1 changed files with 10 additions and 0 deletions
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10
modules/viz/src/viz3d_impl.cpp
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@ -573,6 +573,16 @@ void cv::viz::Viz3d::VizImpl::setCamera(const Camera &camera)
active_camera.SetViewAngle (camera.getFov()[1] * 180.0f / CV_PI);
active_camera.SetClippingRange (camera.getClip()[0], camera.getClip()[1]);
window_->SetSize (camera.getWindowSize().width, camera.getWindowSize().height);
// Use the intrinsic parameters of the camera to simulate more realistically
Matx44f proj_matrix;
camera.computeProjectionMatrix(proj_matrix);
Matx44f old_proj_matrix = convertToMatx(active_camera.GetProjectionTransformMatrix(((float)camera.getWindowSize().width) / camera.getWindowSize().height, -1.0f, 1.0f));
vtkTransform * transform = vtkTransform::New();
// This is a hack around not being able to set Projection Matrix
transform->SetMatrix(convertToVtkMatrix(proj_matrix * old_proj_matrix.inv()));
active_camera.SetUserTransform(transform);
transform->Delete();
}
/////////////////////////////////////////////////////////////////////////////////////////////