2.5.5 Patterned Textures

Patterned textures are complex textures made up of multiple textures. The component textures may be plain textures or may be made up of patterned textures. A plain texture has just one pigment, normal and finish statement. Even a pigment with a pigment map is still one pigment and thus considered a plain texture as are normals with normal map statements.

Patterned textures use either a texture_map statement to specify a blend or pattern of textures or they use block textures such as checker with a texture list or a bitmap similar to an image map called a material map specified with a material_map statement.

The syntax is...

PATTERNED_TEXTURE:
    texture
    {
        [PATTERNED_TEXTURE_ID]
        [TRANSFORMATIONS...]
    } |
    texture
    {
        PATTERN_TYPE
        [TEXTURE_PATTERN_MODIFIERS...]
    } |
    texture
    {
        tiles TEXTURE tile2 TEXTURE
        [TRANSFORMATIONS...]
    } |
    texture
    {
        material_map
        {
            BITMAP_TYPE "bitmap.ext"
            [BITMAP_MODS...] TEXTURE... [TRANSFORMATIONS...]
        }
    }
TEXTURE_PATTERN_MODIFIER:
    PATTERN_MODIFIER | TEXTURE_LIST |
    texture_map { TEXTURE_MAP_BODY }

There are restrictions on using patterned textures. A patterned texture may not be used as a default texture (see section "The #default Directive"). A patterned texture cannot be used as a layer in a layered texture however you may use layered textures as any of the textures contained within a patterned texture.