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Chapter 32: Unwrapping UVs and Mapping Textures
                                       FIGURE 32.1
                                     The UVW Map modifier lets you specify various mapping coordinates for material maps.






















                                             To use the UVW Map modifier, follow these steps:
                                                 1. Open the Nasa decal on rocket.max file from the Chap 32 directory on the DVD.
                                                    This file includes a model of a rocket with the appropriate materials applied. The Chap 32 direc-
                                                    tory on the DVD also includes a 300 × 600 image of the word NASA in black capital letters on a
                                                    white background. The background color of this image was set to be transparent, and the image
                                                    was saved as a .gif.
                                     Note
                                     The GIF format, typically used for Web pages, can easily make areas of the image transparent. These transparent
                                     areas become the alpha channel when loaded into Max. n

                                                 2. Open the Material Editor (or press the M key), and double-click on the Standard material in the
                                                    Material/Map Browser. Name the material NASA Logo. Click the Diffuse color swatch, and select
                                                    a white color. Then double click on the Bitmap map button in the Material/Map Browser. Locate
                                                    the NASA image from the Chap 32 directory on the DVD, and click Open. The bitmap image
                                                    loads, and the Bitmap parameters display in the rollouts. In the Coordinates rollout, enter a value
                                                    of –90 in the W Angle field. The letters rotate vertically. Then, in the Bitmap Parameters rollout,
                                                    select the Image Alpha option.





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