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Part IV: Materials, Cameras, and Lighting Basics



                      FIGURE 17.22
                    The Smoke map simulates the look of smoke when applied as opacity mapping.















                           Speckle map
                           The Speckle map produces small, randomly positioned specks. The Speckle Parameters rollout lets you
                           control the Size and color of the specks. Two color swatches are for the base and speck colors.
                           Figure 17.23 shows the Speckle map with Size values of (from left to right) 100, 200, and 400.

                      FIGURE 17.23
                    The Speckle map paints small, random specks on the surface of an object.















                           Splat map
                           The Splat map can create the look of covering an object with splattered paint. In the Splat Parameters roll-
                           out, you can set the Size of the splattered areas and the number of Iterations, which is how many times the
                           fractal algorithm is computed. For each additional Iteration, a smaller set of spatters appears. The Threshold
                           value determines how much of each color to mix. The rollout also includes two colors for the splattered
                           sections, or you can load maps instead.
                           Figure 17.24 shows the Splat map with a Size value of 60, 6 Iterations, and Threshold values of (from left to
                           right) 0.2, 0.3, and 0.4.
                           Stucco map
                           The Stucco map generates random patches of gradients that create the look of a stucco surface if applied as
                           a bump map. In the Stucco Parameters rollout, the Size value determines the size of these areas. The
                           Thickness value determines how blurry the patches are, which changes the sharpness of the bumps for a
                           bump map. The Threshold value determines how much of each color to mix. The rollout also includes two
                           colors for the patchy sections, or you can load maps instead.

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