# TextureAtom

NAME

    TextureAtom - set texture of atoms
    TextureBond - set texture of bonds
    TextureDist - set texture of distances
    TexturePrim - set texture of primitives
    TextureInit - set initial texture

SYNOPSIS

    TextureAtom string expr expr expr
    TextureBond string expr expr expr
    TextureDist string expr expr expr
    TexturePrim string expr expr expr
    TextureInit string expr expr expr

DESCRIPTION

The first four commands set the texture mapping parameters of all selected atoms, bonds, distances or primitives. `TextureInit` sets the initial texture mapping parameters used for new objects.

The first parameter gives the name of a texture, the second paramter its scaling factor.

The third parameter determines the amount of bumpiness of the surface. 0.0 results in a smooth surface, 1.0 in a very bumpy surface. The fourth paramter is a scaling factor for the bump pattern, a larger scaling factor will result in wider bumps.

Texture mapping is not supported on screen, these parameters are used for preparing files for ray-tracing (PlotPOV).

The texture name must appear in the texture definition file of POV-Ray (textures.inc). If a texture is selected, the attributes of this texture will override the colors and material properties selected otherwise. If the name has the extension ".gif", it is assumed to be the name of a GIF file which is used as image map.

Giving a value of 'as is' for the texture name or less than 0.0 for any numerical argument will not change it, this is useful for changing only part of the parameters.

EXAMPLES

    TextureAtom 'Blood_Marble' 0.5 0.0 1.0
    TextureBond '' 1.0 0.5 1.0

SEE ALSO

`Select*`, `Color*`, `Material*`, `PlotPov`

DATE

991016