For many situations, a real leather image
file (File texture) produces a good leather simulation; however,
it is often difficult to map a file texture to a surface without
distortions and discontinuity. Chord Length or Worldspace texture
mapping may eliminate distortions, but require some effort and do
not always work. In these cases, use the Leather texture.
The Leather texture
uses a 3D array of spheres to simulate 2D leather. This is unlike
real leather because real leather is a surface, not a solid. However, the Leather texture
usually produces very realistic results. The exception is if the
surface is deformed during an animation because the surface may seem
to move through the solid texture. In this case, convert the texture into
an image file (see
Baking illumination and color).
Cell Color, Crease
Color
The color of individual cells (Cell
Color) and the color surrounding the cells (Crease
Color).
Cell Size
The
size of individual cells. The Cell Size value scales
the entire texture. The valid range is 0 to infinity. The slider
range is 0 to 1. The default is 0.5.
Density
Controls
the spacing of cells in the texture. The valid range is 0 to infinity.
The slider range is 0 to 1 (fully packed). The default is 1.
Spottyness
Randomizes
the cell color intensity. The range is 0 to infinity. The slider
range is 0 to 1. At 0 all cells have the same intensity. At 1 the
cell intensity is entirely random. The default is 0.1. The Threshold value
also influences the cell color intensity.
Randomness
Randomizes
the cell position. The valid range is 0 to infinity. The slider
range is 0 to 1. At 0 cells are arranged in a regular 3D lattice.
At 1, cell location is entirely random. The default value is 0.5.
Threshold
Controls
how the cell color and crease color mix into each other. The valid
range is 0 to infinity. The slider range is 0 to 1 (if no mixing
occurs, cells display as solid color dots). The default value is
0.83.
Creases
Creates
boundaries between cells resembling creases in leather. If off,
the cells diffuse uniformly into each other. Creases is
on by default.