Warp <war### [at] tagpovrayorg> wrote:
> H. Karsten <h-karsten()web.de> wrote:
> > I need to write a file, with contains the absolute position and rotation of
> > these objects.
>
>   Define a vector (let's call it L for short) which contains the location
> of the unmodified object, and another (O) which contains its orientation.
>
>   Each time you translate the object, add the translation vector to L.
> Each time you rotate the object, apply the same rotation to both L and O
> using vrotate(). Each time you scale the object, multiply L with the
> scaling factor (even if it's uneven scaling using a vector as factor).
>
> --
>                                                           - Warp

A question to vrotate:

When I'm rotate an object, I have to do this in a right order:

 rotate <rrx,0,0>/power
 rotate <0,0,rrz>/power
 rotate <0,rry,0>/power

This is absolute necessary!

Just by adding the values would give me the wrong result. vrotate gives the
right result?

-holger-

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