Chapter 6: Special effects This same technique could be used to map parking and road stripes on a landscape or to generate complex bump maps for the side of an automobile, for example. 6.2.1.1 Exercise:Accuratelysizingananimatedmaskmap As mentioned earlier, you will use the scanline renderer to render the animated maps. Because the maps are simply grayscale images that will render noticeably faster with the scanline renderer, you won't have to disable or change a lot of settings. For example, the physical sky background will not render in the scanline renderer, but you'll be assured of a pure black background that will provide complete transparency for the map. 1. Open the file called Ch06_ani_mask_01.max and save it to your hard drive with the name Ch06_ani_ mask_02.max. In the Top viewport, you'll see the lofted wake object. If you drag the frame slider, you'll notice that the wake and the ship are linked to the same dummy so that they move the same through the water. Drag the frame slider back to frame 0. 2. To see the material that has been assigned to the wake object, open the Material Editor and highlight the Wake_map