Esempio n. 1
0
        /// <summary>
        /// Updates the Camera 
        /// </summary>
        public void Update(float passedTimeSinceLastFrame, Device device, DPFCanvas canvas)
        {
            KeyboardState state = keyboard.GetCurrentState();
            if (state.IsPressed(Key.R))
                ResetCamera();

            if (state.IsPressed(Key.C))
            {

                RedSea.Singleton.WPFWindow.Screenshot(RedSea.Singleton.SnapFileName + "Snape_" + RedSea.Singleton.Filename + ".png");
            }

            // Map mouse movement to angles.
            UpdateThetaPhiFromMouse(passedTimeSinceLastFrame, canvas);

            // Compute view direction from angles.
            viewDirection = new Vector3((float)(System.Math.Cos(phi) * System.Math.Sin(theta)),
                                        (float)(System.Math.Cos(theta)),
                                        (float)(System.Math.Sin(phi) * System.Math.Sin(theta)));
            // Compute up vector.
            float theta2 = (float)theta + (float)System.Math.PI / 2.0f;
            upVec = new Vector3((float)(System.Math.Cos(phi) * System.Math.Sin(theta2)),
                                (float)(System.Math.Cos(theta2)),
                                (float)(System.Math.Sin(phi) * System.Math.Sin(theta2)));
            rightVec = Vector3.Cross(upVec, viewDirection);

            // Update.
            // Forward movement.
            float forward = (state.IsPressed(Key.W) ? 1.0f : 0.0f) - (state.IsPressed(Key.S) ? 1.0f : 0.0f);
            position += forward * forwardSpeed * viewDirection;

            // Side movement.
            float side = (state.IsPressed(Key.D) ? 1.0f : 0.0f) - (state.IsPressed(Key.A) ? 1.0f : 0.0f);
            position += side * sideSpeed * rightVec;

            // Upward movement.
            float up = state.IsPressed(Key.Space) ? 1.0f : 0.0f - (state.IsPressed(Key.LeftAlt) ? 1.0f : 0.0f);
            position += up * upSpeed * upVec;

            // Compute view matrix.
            View = Matrix.LookAtLH(position, position + viewDirection, upVec);
            UpdateResources(device);
        }
Esempio n. 2
0
        /// <summary>
        /// intern helper to update view angles by mouse
        /// </summary>
        protected void UpdateThetaPhiFromMouse(float passedTimeSinceLastFrame, DPFCanvas canvas)
        {
            MouseState stateMouse = mouse.GetCurrentState();
            KeyboardState stateKeyboard = keyboard.GetCurrentState();

            // Left button pressed. Perform plane intersection.
            if (stateMouse.IsPressed(0))
            {
                System.Windows.Point mouse = System.Windows.Input.Mouse.GetPosition(canvas);
                _releaseMouseRelative.X = (float)((2 * mouse.X - canvas.ActualWidth) / canvas.ActualWidth);
                _releaseMouseRelative.Y = (float)((2 * mouse.Y - canvas.ActualHeight) / canvas.ActualHeight);

                //Console.WriteLine(_releaseMouseRelative.ToString());
                if (_setMouseRelative == null)
                {
                    _setMouseRelative = _releaseMouseRelative;
                }

                RedSea.Singleton.UpdateSelection();
            }
            // Mouse wheel pressed. Move camera.
            else if (_setMouseRelative != null)
            {
                RedSea.Singleton.EndSelection();
                _setMouseRelative = null;
            }

            if (stateMouse.IsPressed(2))
            {
                // mouse movement
                double deltaX = Cursor.Position.X - lastMouseX;
                double deltaY = Cursor.Position.Y - lastMouseY;
                phi -= deltaX * rotationSpeed;
                theta -= deltaY * rotationSpeed;
            }
            else
            {
                //theta += (stateKeyboard.IsPressed(Key.UpArrow) ? rotationSpeed * passedTimeSinceLastFrame * 0.3f : 0.0f);
                //theta -= (stateKeyboard.IsPressed(Key.DownArrow) ? rotationSpeed * passedTimeSinceLastFrame * 0.3f : 0.0f);
                //phi -= (stateKeyboard.IsPressed(Key.RightArrow) ? rotationSpeed * passedTimeSinceLastFrame * 0.3f : 0.0f);
                //phi += (stateKeyboard.IsPressed(Key.LeftArrow) ? rotationSpeed * passedTimeSinceLastFrame * 0.3f : 0.0f);
            }

            lastMouseX = Cursor.Position.X;
            lastMouseY = Cursor.Position.Y;
        }
Esempio n. 3
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 public void SetCanvas(DPFCanvas canv)
 {
     _canvas = canv;
 }