i create a compass on the screen, but when i open an model , the HUD Compass
disappeared . following is my code.
can some one tell me how to resolve this problem?
//create hud camera
theCameraNode = new osg::Camera;
theCameraNode->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
theCameraNode->setProjectionMatrix(osg::Matrix::ortho2D(-1,1,-1,1));
theCameraNode->setViewMatrix(osg::Matrix::identity());
theCameraNode->setViewport(0,0,200,200);
theCameraNode->setClearMask(GL_DEPTH_BUFFER_BIT);
theCameraNode->setRenderOrder(osg::CameraNode::POST_RENDER);
theCompass = new ocsCompass; // compass node
theCameraNode->addChild(theCompass);
addChild(theCameraNode);
wh_xiexing
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