The material of an object can be separated into its surface properties, the
texture, and its inside, the interior. Here we will only touch
upon the texture, which can be split into three parts:
pigment, normal and finish.
Although the pigment can be much more, it is easiest to think about it as the
color of the surface. It consists of five parts: the red, green
and blue component as well as a transparency and filter
value. The first three are usually predefined from DINO, and their usage in POVray can
be a little complicated. The fourth and fifth
parameters are present as variables and they are further discussed here. The pigment
statement in the texture declaration is just a placeholder and should
not be modified. There are two exceptions to this:
- The contour object of the scalar field dataset uses this
pigment statement to define its color, filter and transmit value.
- The -nocolor option during scene
export will make this pigment statement active.
Some detail is presented on the finish and the
normal modifiers as well as their combined effect.
It is of course possible to utilize predefined settings from the POVray
distribution or other sources. The predefined
textures sections has more on that.
(c) 2001-2005 Ansgar Philippsen