.
. ![[Quick Ref]](../icons/quick_ref.gif)
Next: Texturing
Up: Rayshade User's Guide and
Previous: Surface Specification
Rayshade supports the application of linear transformations to objects
and textures. If more than one transformation is specified, the
total resulting transformation is computed and applied.

- translate ^delta
Translate (move) by ^delta.

- rotate ^axis
Rotate counter-clockwise about the given axis by
degrees.

- scale ^v
Scale by ^v.
All three scaling components must be non-zero, else degenerate matrices
will result.

- transform ^row1 ^row2 ^row3 [^delta]
Apply the given 3-by-3 transformation matrix. If given, ^delta
specifies a translation vector.
Transformations should
be specified in the order in which they are to be applied
immediately following the item to
be transformed.
For example:
/*
* Ellipsoid, rotated cube
*/
sphere 1. 0 0 0 scale 2. 1. 1. translate 0 0 -2.5
box 0 0 0 .5 .5 .5
rotate 0 0 1 45 rotate 1 0 0 45 translate 0 0 2.5
Transformations may also be applied to
textures:
surface red
diffuse 1 0 0 ambient 1 0 0
plane 0 0 -4 0 0 1
texture checker red scale 2 2 2 rotate 0 0 1 45
Note that transformation parameters may be specified using
animated expressions,
causing the transformations themselves to be animated.
.
. ![[Quick Ref]](../icons/quick_ref.gif)
Next: Texturing
Up: Rayshade User's Guide and
Previous: Surface Specification
Jelle van Zeijl (jvzeijl@iso.estec.esa.nl)
Wed Jun 15 16:19:08 MET DST 1994