Mountain

Find this texture in the Create bar.

Simulates rocky terrain using a 2D fractal pattern. To apply this texture as a texture map, see Map a 2D or 3D texture.

Use the Mountain texture as both a color map and a bump or displacement map (on a flat surface) to simulate snow-capped mountains. To do so, apply the Mountain texture this way:

• The texture calculates the color map based on the bump/displacement map, so, for example, the location of snow is based on the surface’s displacement.
• The color attributes (Snow Color and Rock Color) relate only to the color map and have no effect on the bump/displacement map—and all non-color attributes relate only to the bump/displacement map and have no effect on the color map.
• The Boundary, Snow Altitude, Snow Dropoff, Snow Slope, and Depth Max attribute values of the bump/displacement map override those of the color map. For example, the Boundary value of the bump/displacement map controls the raggedness of the snow/rock boundary of the color map.

  Snow Color, Rock Color

  Color of the snow and rock. Click the color file to choose a different color from the Color Chooser.

  Amplitude

  Scaling factor applied to all values in the texture. The valid range is 0 to infinity. The range is 0 to 1. The default is 1.

  Snow Roughness

  Roughness of the snow. The range is 0 (very smooth snow) to 1 (very rough snow). The default is 0.4.

  Rock Roughness

  Roughness of the rock. The range is 0 (very smooth rock) to 1 (very rough rock). The default is 0.707.

  Boundary

  Raggedness of the rock/snow boundary. The range is 0 (very smooth rock/snow boundary) to 1 (very rough rock/snow boundary). The default is 1.

  Snow Altitude

  The level (altitude) of the transition between rock and snow. The valid range is 0 to infinity. The range is 0 to 1. The default is 0.5.

  Snow Dropoff

  The suddenness with which snow no longer sticks to the mountain. The valid range is 0 to infinity. The default is 2.

  Snow Slope

  The maximum angle (expressed as a decimal value) over which snow does not stick to the mountain. For example, where the slope exceeds the Snow Slope value, it would be bare rock. The valid range is 0 to infinity. The range is 0 to 3. The default is 0.8.

  Depth Max

  The maximum number of iterations used to calculate the fractal pattern, which controls the granularity of the fractal pattern. The range is 0 to 40. The default is 20.

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