7 - Transformations

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 counter-clockwise about the given axis by Ø 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:

    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 of animated expressions, causing the transformations themselves to be animated. See Appendix B for further details.

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