void showAll(PerspectiveCameraRefPtr TheCamera, NodeRefPtr Scene, Vec3f Up)
{
//Make sure the volume is up to date for the Scene
Scene->updateVolume();
//Get the Minimum and Maximum bounds of the volume
Vec3f min,max;
Scene->getVolume().getBounds( min, max );
Vec3f d = max - min;
if(d.length() < Eps) //The volume is 0
{
//Default to a 1x1x1 box volume
min.setValues(-0.5f,-0.5f,-0.5f);
max.setValues( 0.5f, 0.5f, 0.5f);
d = max - min;
}
Real32 dist = osgMax(d[0],d[1]) / (2 * osgTan(TheCamera->getFov() / 2.f));
Pnt3f at((min[0] + max[0]) * .5f,(min[1] + max[1]) * .5f,(min[2] + max[2]) * .5f);
Pnt3f from=at;
from[2]+=(dist+fabs(max[2]-min[2])*0.5f);
//If the Camera Beacon is a node with a transfrom core
if(TheCamera->getBeacon() != NULL &&
TheCamera->getBeacon()->getCore() != NULL &&
TheCamera->getBeacon()->getCore()->getType().isDerivedFrom(Transform::getClassType()))
{
Matrix m;
if(!MatrixLookAt(m, from, at, Up))
{
dynamic_cast<Transform*>(TheCamera->getBeacon()->getCore())->setMatrix(m);
}
}
//Set the camera to go from 1% of the object to 10 times its size
Real32 diag = osgMax(osgMax(d[0], d[1]), d[2]);
TheCamera->setNear (diag / 100.f);
TheCamera->setFar (10 * diag);
}
void ApplicationStartScreen::attachApplication(void)
{
Inherited::attachApplication();
//Camera Transformation Node
Matrix CameraTransformMatrix;
CameraTransformMatrix.setTranslate(0.0f,0.0f, 5.0f);
TransformRefPtr CameraBeaconTransform = Transform::create();
CameraBeaconTransform->setMatrix(CameraTransformMatrix);
NodeRefPtr CameraBeaconNode = Node::create();
CameraBeaconNode->setCore(CameraBeaconTransform);
// Make Torus Node (creates Torus in background of scene)
NodeRefPtr TorusGeometryNode = NULL;
//BoostPath TorusKnotFile(MainApplication::the()->getSettings()->getDataDirectory() / std::string("Models") / std::string("TorusKnot.osb"));
//SLOG << "Loading Torus Knot from: " << TorusKnotFile.string() << std::endl;
//if(boost::filesystem::exists(TorusKnotFile))
//{
//TorusGeometryNode = SceneFileHandler::the()->read(TorusKnotFile.native_file_string().c_str());
//}
//if(TorusGeometryNode == NULL)
//{
//SWARNING << "Could not load Torus Knot from: "
//<< TorusKnotFile.string() << " because this file doesn't exist." << std::endl;
TorusGeometryNode = makeTorus(.5, 2, 64, 64);
//}
//Scene Transformation
TransformRefPtr SceneTransformCore = Transform::create();
NodeRefPtr SceneTransformNode = Node::create();
SceneTransformNode->setCore(SceneTransformCore);
SceneTransformNode->addChild(TorusGeometryNode);
//Light
NodeRefPtr LightBeaconNode = Node::create();
LightBeaconNode->setCore(Transform::create());
DirectionalLightRefPtr SceneLightCore = DirectionalLight::create();
SceneLightCore->setDirection(1.0,0.0,0.0);
SceneLightCore->setBeacon(LightBeaconNode);
NodeRefPtr SceneLightNode = Node::create();
SceneLightNode->setCore(SceneLightCore);
SceneLightNode->addChild(SceneTransformNode);
// Make Main Scene Node and add the Torus
NodeRefPtr DefaultRootNode = OSG::Node::create();
DefaultRootNode->setCore(OSG::Group::create());
DefaultRootNode->addChild(CameraBeaconNode);
DefaultRootNode->addChild(SceneLightNode);
DefaultRootNode->addChild(LightBeaconNode);
//Camera
PerspectiveCameraRefPtr DefaultCamera = PerspectiveCamera::create();
DefaultCamera->setBeacon(CameraBeaconNode);
DefaultCamera->setFov (osgDegree2Rad(60.f));
DefaultCamera->setNear (0.1f);
DefaultCamera->setFar (10000.f);
//Background
GradientBackgroundRefPtr DefaultBackground = GradientBackground::create();
DefaultBackground->addLine(Color3f(0.0f,0.0f,0.0f), 0.0f);
DefaultBackground->addLine(Color3f(0.0f,0.0f,0.5f), 1.0f);
//Animation
//KeyFrames
KeyframeTransformationSequenceRefPtr TransformationKeyframes = KeyframeTransformationSequenceMatrix4f::create();
OSG::Matrix TempMat;
TransformationKeyframes->addKeyframe(TempMat,0.0f);
TempMat.setRotate(Quaternion(Vec3f(0.0f,1.0f,0.0f), 3.14159f*0.5));
TransformationKeyframes->addKeyframe(TempMat,4.0f);
TempMat.setRotate(Quaternion(Vec3f(0.0f,1.0f,0.0f), 3.14159f*1.0));
TransformationKeyframes->addKeyframe(TempMat,8.0f);
TempMat.setRotate(Quaternion(Vec3f(0.0f,1.0f,0.0f), 3.14159f*1.5));
TransformationKeyframes->addKeyframe(TempMat,12.0f);
TempMat.setRotate(Quaternion(Vec3f(0.0f,1.0f,0.0f), 0.0f));
TransformationKeyframes->addKeyframe(TempMat,16.0f);
//Animator
KeyframeAnimatorRefPtr TorusAnimator = OSG::KeyframeAnimator::create();
TorusAnimator->setKeyframeSequence(TransformationKeyframes);
//Animation
_TorusAnimation = FieldAnimation::create();
_TorusAnimation->setAnimator(TorusAnimator);
_TorusAnimation->setInterpolationType(Animator::LINEAR_INTERPOLATION);
_TorusAnimation->setCycling(-1);
_TorusAnimation->setAnimatedField(SceneTransformCore, std::string("matrix"));
_TorusAnimation->attachUpdateProducer(MainApplication::the()->getMainWindow()->editEventProducer());
_TorusAnimation->start();
//Foreground
//ImageForegroundRefPtr LogoForeground = ImageForeground::create();
//BoostPath LogoPath(MainApplication::the()->getSettings()->getDataDirectory() / "Images/Logo.png");
//ImageRefPtr LoadedImage = ImageFileHandler::the().read(LogoPath.string().c_str());
// LogoForeground->addImage( LoadedImage, Pnt2f( 0,0 ) );
ForegroundRefPtr UserInterfaceForeground = createInterface();
_TheUIDrawingSurface->setEventProducer(MainApplication::the()->getMainWindow());
if(MainApplication::the()->getMainWindow() != NULL &&
MainApplication::the()->getMainWindow()->getMFPort()->size() == 0)
{
ViewportRefPtr DefaultViewport = Viewport::create();
DefaultViewport->setCamera (DefaultCamera);
DefaultViewport->setRoot (DefaultRootNode);
DefaultViewport->setSize (0.0f,0.0f, 1.0f,1.0f);
DefaultViewport->setBackground (DefaultBackground);
DefaultViewport->addForeground (UserInterfaceForeground);
MainApplication::the()->getMainWindow()->addPort(DefaultViewport);
}
MainApplication::the()->getMainWindow()->addKeyListener(&_StartScreenKeyListener);
MainApplication::the()->getMainWindow()->addUpdateListener(&_ScreenUpdateListener);
}
