/// <summary>
/// Helper function to create a texture. It checks the root path first,
/// then tries the DXSDK media path (as specified in the system registry).
/// </summary>
public static Texture CreateTexture(Device device, string textureFilename)
{
return(GraphicsUtility.CreateTexture(device, textureFilename, Format.Unknown));
}
/// <summary>
/// Fired when the containers mouse is moving
/// </summary>
private void OnContainerMouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (GetAsyncKeyState(CameraControlKey))
{
if (e.Button == System.Windows.Forms.MouseButtons.Left && parent.Camera.Rotatable)
{
if (internaldragging)
{
// adjustedY is normally just (e.Y)
int adjustedY = saveMouseY - (e.Y - saveMouseY);
// recompute nowQuat
Vector3 vCur = ScreenToVector(e.X, adjustedY);
#region new rotate - ignore this
// // Normalize based on size of window and bounding sphere radius
// float fDeltaX = (saveMouseX-e.X) * 0.005f; // * internalradiusTranslation / internalWidth;
// float fDeltaY = (saveMouseY-e.Y) * 0.005f; // * internalradiusTranslation / internalHeight;
//
//
// // calculate the directional view vector, and use it for our panning plane vectors
// Vector3 direction = parent.Camera.TargetPoint - parent.Camera.EyePosition;
// Vector3 panX = Vector3.Cross(direction, parent.Camera.UpVector);
// Vector3 panY = parent.Camera.UpVector;
//
// // calculate the view (camera movement) vector
// Vector3 vCur = parent.Camera.TargetPoint +
// (panX * e.X) + (panY * e.Y);
#endregion
Quaternion qAxisToAxis = GraphicsUtility.D3DXQuaternionAxisToAxis(internalvectorDown, vCur);
internalnowQuat = internaldownQuat;
internalnowQuat = Quaternion.Multiply(internalnowQuat, qAxisToAxis);
internalrotationDelta = Matrix.RotationQuaternion(qAxisToAxis);
}
else
{
internalrotationDelta = Matrix.Identity;
}
internalrotationMatrix = Matrix.RotationQuaternion(internalnowQuat);
internaldragging = true;
// set cursor
if (cursorInvalid)
{
parent.Cursor = new Cursor(GetType(), "rotate.cur");
cursorInvalid = false;
}
}
if ((e.Button == System.Windows.Forms.MouseButtons.Right) || (e.Button == System.Windows.Forms.MouseButtons.Middle))
{
// Normalize based on size of window and bounding sphere radius
float fDeltaX = (saveMouseX - e.X) * internalradiusTranslation / internalWidth;
float fDeltaY = (saveMouseY - e.Y) * internalradiusTranslation / internalHeight;
if (e.Button == System.Windows.Forms.MouseButtons.Middle && parent.Camera.Pannable)
{
// camera: panning //
// calculate the directional view vector, and use it for our panning plane vectors
Vector3 direction = parent.Camera.TargetPoint - parent.Camera.EyePosition;
Vector3 panX = Vector3.Cross(direction, parent.Camera.UpVector);
Vector3 panY = parent.Camera.UpVector;
// calculate the view (camera movement) vector
Vector3 view = parent.Camera.TargetPoint +
(panX * fDeltaX) + (panY * fDeltaY * 5.0f);
// determine the translation matrix
internaltranslationDelta = Matrix.Translation(view.X, view.Y, view.Z);
internaltranslationMatrix = Matrix.Multiply(internaltranslationMatrix, internaltranslationDelta);
// set cursor
if (cursorInvalid)
{
parent.Cursor = new Cursor(GetType(), "move.cur");
cursorInvalid = false;
}
}
if (e.Button == System.Windows.Forms.MouseButtons.Right && parent.Camera.Zoomable)
{
// camera: zooming //
// calculate the camera's directional vector
Vector3 direction = parent.Camera.TargetPoint - parent.Camera.EyePosition;
internaltranslationDelta = Matrix.Translation(direction.X * -fDeltaY, direction.Y * -fDeltaY, direction.Z * -fDeltaY);
internaltranslationMatrix = Matrix.Multiply(internaltranslationMatrix, internaltranslationDelta);
// zoom orthogonal camera
parent.Camera.OrthoZoom -= fDeltaY * 4.0f;
if (parent.Camera.OrthoZoom < 4.0f)
{
parent.Camera.OrthoZoom = 4.0f;
}
parent.Camera.SetProjectionParameters(parent.Camera.FOV, parent.Camera.AspectRatio,
parent.Camera.NearClipPlane, parent.Camera.FarClipPlane);
// set cursor
if (cursorInvalid)
{
parent.Cursor = new Cursor(GetType(), "zoom.cur");
cursorInvalid = false;
}
}
// Store mouse coordinate
saveMouseX = e.X;
saveMouseY = e.Y;
} // end of zoom/pan
// copy the world matrix transformations
Matrix worldTemp = Matrix.Translation(parent.Camera.TargetPoint);
worldTemp.Multiply(internalrotationMatrix);
worldTemp.Multiply(internaltranslationMatrix);
parent.Camera.WorldMatrix = worldTemp;
// render this camera's viewport
parent.Render();
}
else
{
internaldragging = false;
cursorInvalid = true;
}
}