/// <summary>
/// render scene in every view port.
/// </summary>
/// <param name="viewPort"></param>
/// <param name="clientRectangle"></param>
/// <param name="pickingGeometryType"></param>
private void RenderViewPort(ViewPort viewPort, Rectangle clientRectangle, PickingGeometryType pickingGeometryType)
{
if (viewPort.Enabled)
{
// render in this view port.
if (viewPort.Visiable)
{
// render scene in this view port.
viewPort.Render(this, clientRectangle, pickingGeometryType);
}
// render children viewport.
foreach (ViewPort item in viewPort.Children)
{
this.RenderViewPort(item, clientRectangle, pickingGeometryType);
}
}
}
// TODO: big bug: when mouse is picking something and move outside of viewport to anothher one, camera will go wrong.
/// <summary>
/// Initializes a new instance of the <see cref="RenderEventArgs"/> class.
/// </summary>
/// <param name="canvasRect"></param>
/// <param name="viewPort">camera used during rendering.</param>
/// <param name="pickingGeometryType">Target geometry type(point, line, triangle, quad or polygon) for color-coded-picking; otherwise useless.</param>
public RenderEventArgs(Rectangle canvasRect, ViewPort viewPort, PickingGeometryType pickingGeometryType)
{
this.CanvasRect = canvasRect;
this.UsingViewPort = viewPort;
this.PickingGeometryType = pickingGeometryType;
}