anchor.diff:  
   uses
     TERRA_Application,
  -  TERRA_Scene,
     TERRA_GraphicsManager,
     TERRA_Viewport,
     TERRA_DemoApplication,
  
positive.code: Begin
    Inherited;
  
    // create a image at run-time
    Img := Image.Create(256, 256);
  
    // fill with red color
    It := Img.RectangleByUV(0, 0, 1, 1, [image_Write, image_Fill]);
  
negative.code: Procedure Demo.OnCreate;
  Var
    I:Integer;
    Img:TERRAImage;
    It:ImageIterator;
  
    U, V:Single;
  