private void CreateCamera()
{
// Create a camera
Camera camera = new Camera();
// Set the vertical field of view to be 60 degrees
camera.FieldOfViewY = MathHelper.ToRadians(60);
// Set the near clipping plane to be 0.1f unit away from the camera
camera.ZNearPlane = 0.1f;
// Set the far clipping plane to be 1000 units away from the camera
camera.ZFarPlane = 1000;
// Now assign this camera to a camera node, and add this camera node to our scene graph
CameraNode cameraNode = new CameraNode(camera);
scene.RootNode.AddChild(cameraNode);
// Assign the camera node to be our scene graph's current camera node
scene.CameraNode = cameraNode;
}
/// <summary>
/// Creates a scene graph node that holds the camera properties of the viewer with a specified
/// node name.
/// </summary>
/// <param name="name">The name of this camera node</param>
/// <param name="camera">The actual camera properties associated with this node</param>
public CameraNode(String name, Camera camera)
: base(name)
{
this.camera = camera;
worldTransform = Matrix.Identity;
compoundViewMatrix = Matrix.Identity;
leftCompoundMatrix = Matrix.Identity;
rightCompoundMatrix = Matrix.Identity;
if (camera != null)
{
if (camera is StereoCamera)
isStereo = true;
else
isStereo = false;
viewFrustum = new BoundingFrustum(camera.Projection);
leftViewFrustum = new BoundingFrustum(camera.Projection);
rightViewFrustum = new BoundingFrustum(camera.Projection);
}
}
private void CreateCamera()
{
// Create a camera
Camera camera = new Camera();
if (State.IsServer)
{
camera.Translation = new Vector3(0, 5, 10);
camera.Rotation = Quaternion.CreateFromAxisAngle(Vector3.UnitX, MathHelper.ToRadians(-25));
}
else
{
camera.Translation = new Vector3(0, 0, -30);
camera.Rotation = Quaternion.CreateFromAxisAngle(Vector3.UnitY, MathHelper.Pi);
}
// Set the vertical field of view to be 60 degrees
camera.FieldOfViewY = MathHelper.ToRadians(60);
// Set the near clipping plane to be 0.1f unit away from the camera
camera.ZNearPlane = 0.1f;
// Set the far clipping plane to be 1000 units away from the camera
camera.ZFarPlane = 1000;
// Now assign this camera to a camera node, and add this camera node to our scene graph
CameraNode cameraNode = new CameraNode(camera);
scene.RootNode.AddChild(cameraNode);
// Assign the camera node to be our scene graph's current camera node
scene.CameraNode = cameraNode;
}
private void CreateCamera()
{
// Set up the camera of the scene graph
Camera camera = new Camera();
// Put the camera at (0, 0, 0)
camera.Translation = new Vector3(0, 50, 120);
// Rotate the camera -45 degrees along the X axis
camera.Rotation = Quaternion.CreateFromAxisAngle(Vector3.UnitX,
MathHelper.ToRadians(-30));
// Set the vertical field of view to be 45 degrees
camera.FieldOfViewY = MathHelper.ToRadians(45);
// Set the near clipping plane to be 0.1f unit away from the camera
camera.ZNearPlane = 0.1f;
// Set the far clipping plane to be 1000 units away from the camera
camera.ZFarPlane = 1000;
// Now assign this camera to a camera node, and add this camera node to our scene graph
CameraNode cameraNode = new CameraNode(camera);
scene.RootNode.AddChild(cameraNode);
// Assign the camera node to be our scene graph's current camera node
scene.CameraNode = cameraNode;
}
private void CreateCamera()
{
// Create a camera
Camera camera = new Camera();
// Put the camera at (0, 0, 10)
camera.Translation = new Vector3(0, 0, 10);
// Set the vertical field of view to be 60 degrees
camera.FieldOfViewY = MathHelper.ToRadians(60);
// Set the near clipping plane to be 0.1f unit away from the camera
camera.ZNearPlane = 0.1f;
// Set the far clipping plane to be 1000 units away from the camera
camera.ZFarPlane = 1000;
// Now assign this camera to a camera node, and add this camera node to our scene graph
CameraNode cameraNode = new CameraNode(camera);
scene.RootNode.AddChild(cameraNode);
// Assign the camera node to be our scene graph's current camera node
scene.CameraNode = cameraNode;
}
private void CreateCamera()
{
// Set up the camera of the scene graph
Camera camera = new Camera();
// Put the camera at (0, 3, 7)
camera.Translation = new Vector3(0, 3, 7);
// Rotate the camera -15 degrees along the X axis
camera.Rotation = Quaternion.CreateFromAxisAngle(Vector3.UnitX,
MathHelper.ToRadians(-15));
// Set the vertical field of view to be 45 degrees
camera.FieldOfViewY = MathHelper.ToRadians(45);
// Set the near clipping plane to be 0.1f unit away from the camera
camera.ZNearPlane = 0.1f;
// Set the far clipping plane to be 1000 units away from the camera
camera.ZFarPlane = 1000;
// Set the initial translation and rotation of the generic input which controls
// the camera transform in this application
GenericInput.Instance.InitialTranslation = camera.Translation;
GenericInput.Instance.InitialRotation = camera.Rotation;
// Adjust the speed of the camera control
GenericInput.Instance.PanSpeed = 0.05f;
GenericInput.Instance.ZoomSpeed = 0.5f;
GenericInput.Instance.RotateSpeed = 0.02f;
// Now assign this camera to a camera node
CameraNode cameraNode = new CameraNode(camera);
// Add a transform node which will be updated based on GenericInput class
// which implements simple camera rotation and translation based on mouse
// drag and key presses.
// To rotate the camera, hold right mouse button and drag around
genericInputNode = new TransformNode();
scene.RootNode.AddChild(genericInputNode);
genericInputNode.AddChild(cameraNode);
// Assign the camera node to be our scene graph's current camera node
scene.CameraNode = cameraNode;
}
private void CreateCamera()
{
// Create a camera for 2D visualization
staticCamera = new Camera();
staticCamera.Translation = new Vector3(0, 0, 0);
staticCamera.FieldOfViewY = MathHelper.ToRadians(45);
staticCamera.ZNearPlane = 1.0f;
staticCamera.ZFarPlane = 1000;
staticCamera.AspectRatio = (float)(graphics.PreferredBackBufferWidth / graphics.PreferredBackBufferHeight);
projectionMatrix = Matrix.CreatePerspectiveFieldOfView(staticCamera.FieldOfViewY, staticCamera.AspectRatio,
staticCamera.ZNearPlane, staticCamera.ZFarPlane);
viewMatrix = Matrix.CreateLookAt(new Vector3(0,0,-10),Vector3.Zero, Vector3.Up);
staticCamera.View = viewMatrix;
staticCamera.Projection = projectionMatrix;
// Now assign camera to a camera node, and add this camera node to our scene graph
staticCameraNode = new CameraNode(staticCamera);
scene.RootNode.AddChild(staticCameraNode);
scene.CameraNode = staticCameraNode;
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="cam"></param>
public Camera(Camera cam)
{
translation = cam.Translation;
rotation = cam.Rotation;
view = cam.View;
projection = cam.Projection;
fieldOfView = cam.FieldOfViewY;
aspectRatio = cam.AspectRatio;
zNearPlane = cam.ZNearPlane;
zFarPlane = cam.ZFarPlane;
modifyView = false;
modifyProjection = false;
}
/// <summary>
/// Creates a scene graph node that holds the camera properties of the viewer.
/// </summary>
/// <param name="camera"></param>
public CameraNode(Camera camera) : this("", camera) { }
public override void Load(XmlElement xmlNode)
{
base.Load(xmlNode);
if (xmlNode.HasAttribute("Stereo"))
isStereo = bool.Parse(xmlNode.GetAttribute("Stereo"));
camera = (Camera)Activator.CreateInstance(Type.GetType(xmlNode.FirstChild.Name));
camera.Load((XmlElement)xmlNode.FirstChild);
viewFrustum = new BoundingFrustum(camera.Projection);
leftViewFrustum = new BoundingFrustum(camera.Projection);
rightViewFrustum = new BoundingFrustum(camera.Projection);
}
private void CreateCameras()
{
// Create the main camera
mainCamera = new Camera();
mainCamera.Translation = new Vector3(0, -30, -100);
mainCamera.ZNearPlane = 1;
mainCamera.ZFarPlane = 2000;
mainCameraNode = new CameraNode(mainCamera);
scene.RootNode.AddChild(mainCameraNode);
// Create the flying camera
flyingCamera = new Camera();
flyingCamera.Translation = new Vector3(0, 0, 200);
flyingCamera.ZNearPlane = 1;
flyingCamera.ZFarPlane = 2000;
cameraTrans = new TransformNode();
flyingCameraNode = new CameraNode(flyingCamera);
groundMarkerNode.AddChild(cameraTrans);
cameraTrans.AddChild(flyingCameraNode);
scene.CameraNode = mainCameraNode;
}
private void CreateCameras()
{
// Create a camera for VR scene
Camera vrCamera = new Camera();
vrCamera.Translation = new Vector3(0, -280, 480);
vrCamera.Rotation = Quaternion.CreateFromAxisAngle(Vector3.UnitX, MathHelper.ToRadians(45));
vrCamera.FieldOfViewY = MathHelper.ToRadians(60);
vrCamera.ZNearPlane = 1;
vrCamera.ZFarPlane = 2000;
vrCameraNode = new CameraNode(vrCamera);
scene.RootNode.AddChild(vrCameraNode);
// Create a camera for AR scene
Camera arCamera = new Camera();
arCamera.ZNearPlane = 1;
arCamera.ZFarPlane = 2000;
arCameraNode = new CameraNode(arCamera);
scene.RootNode.AddChild(arCameraNode);
// Set the AR camera to be the main camera so that at the time of setting up the marker tracker,
// the marker tracker will assign the right projection matrix to this camera
scene.CameraNode = arCameraNode;
}
/// <summary>
/// Creates a camera that chases a given object.
/// </summary>
/// <param name="chasedObject"></param>
private void CreateChasingCamera(GeometryNode chasedObject)
{
// Set up the camera of the scene graph
Camera camera = new Camera();
camera.Translation = new Vector3(5, 3, 0);
// Rotate the camera -20 degrees along the X axis
camera.Rotation = Quaternion.CreateFromAxisAngle(Vector3.UnitY,
MathHelper.ToRadians(90)) * Quaternion.CreateFromAxisAngle(Vector3.UnitX,
MathHelper.ToRadians(-20));
// Set the vertical field of view to be 60 degrees
camera.FieldOfViewY = MathHelper.ToRadians(45);
// Set the near clipping plane to be 0.1f unit away from the camera
camera.ZNearPlane = 0.1f;
// Set the far clipping plane to be 1000 units away from the camera
camera.ZFarPlane = 1000;
// Add this camera node to a geometry node we want to chase for
CameraNode cameraNode = new CameraNode("ChasingCamera", camera);
chasedObject.AddChild(cameraNode);
// Initially assign the chasing camera to be our scene graph's active camera node
scene.CameraNode = cameraNode;
}
private void CreateStaticCamera(bool near)
{
// Set up the camera of the scene graph
Camera camera = new Camera();
if (near)
camera.Translation = new Vector3(0, 0, 0);
else
camera.Translation = new Vector3(0, 10, 55);
// Rotate the camera -20 degrees along the X axis
camera.Rotation = Quaternion.CreateFromAxisAngle(Vector3.UnitX,
MathHelper.ToRadians(-20));
// Set the vertical field of view to be 45 degrees
camera.FieldOfViewY = MathHelper.ToRadians(45);
// Set the near clipping plane to be 0.1f unit away from the camera
camera.ZNearPlane = 0.1f;
// Set the far clipping plane to be 1000 units away from the camera
camera.ZFarPlane = 1000;
String prefix = (near) ? "Near" : "Far";
// Add this camera node to our scene graph
CameraNode cameraNode = new CameraNode(prefix + "Camera", camera);
scene.RootNode.AddChild(cameraNode);
}
