Reference:Brick Pattern

The brick pattern generates a pattern of bricks. The bricks are offset by half a brick length on every other row in the x- and z-directions. A layer of mortar surrounds each brick. The syntax is given by

pigment {
  brick COLOR_1, COLOR_2
  [brick_size <Size>] [mortar Size]
  }

where COLOR_1 is the color of the mortar and COLOR_2 is the color of the brick itself. If no colors are specified a default deep red and dark gray are used. The default size of the brick and mortar together is <8, 3, 4.5> units. The default thickness of the mortar is 0.5 units. These values may be changed using the optional brick_size and mortar pattern modifiers. You may also use pigment statements in place of the colors. For example:

pigment {
  brick pigment{Jade}, pigment{Black_Marble}
  }

This example uses normals:

normal { brick 0.5 }

The float value is an optional bump size. You may also use full normal statements. For example:

normal {
  brick normal{bumps 0.2}, normal{granite 0.3}
  }

When used with textures, the syntax is

texture {
  brick texture{T_Gold_1A}, texture{Stone12}
  }

This is a block pattern which cannot use wave types, color_map, or slope_map modifiers.

The brick pattern has a default color_map built in that results in red bricks and grey mortar.