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Chapter 17: Adding Material Details with Maps

Particle Age map
The Particle Age map is used with particle systems to change the color of particles over their lifetime. The
Particle Age Parameters rollout includes three different color swatches and age values.
Particle MBlur map
The Particle MBlur map is also used with particle systems. This map is used to blur particles as they
increase in velocity. The Particle Motion Blur Parameters rollout includes two colors: The first color is the
one used for the slower portions of the particle, and the second color is used for the fast portions. When
you apply this map as an opacity map, the particles are blurred. The Sharpness value determines the
amount of blur.

Cross-Ref
For more on both the Particle Age and Particle MBlur maps, see Chapter 41, “Creating Particles and Particle
Flow.” n
Perlin Marble map
This map creates marble textures using a different algorithm. Perlin Marble is more chaotic and random
than the Marble map. The Perlin Marble Parameters rollout includes a Size parameter, which adjusts the
size of the marble pattern, and a Levels parameter, which determines how many times the algorithm is
applied. The two color swatches determine the base and vein colors, or you can assign a map. There are
also values for the Saturation of the colors.
Figure 17.21 shows the Perlin Marble map Size values of (from left to right) 50, 100, and 200.
Smoke map
The Smoke map can create random fractal-based patterns such as those you would see in smoke. In the
Smoke Parameters rollout, you can set the Size of the smoke areas and the number of Iterations (how many
times the fractal algorithm is computed). The Phase value shifts the smoke about, and the Exponent value
produces thin, wispy lines of smoke. The rollout also includes two colors for the smoke particles and the
area between the smoke particles, or you can load maps instead.
Figure 17.22 shows the Smoke map with Size values of (from left to right) 40, 80, and 200.

FIGURE 17.21
The Perlin Marble map creates a marble pattern with random veins.

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