//---------------------------------------------------------
//---------------------------------------------------------
/* vtransform ( V, Transformation ) 
   vinv_transform( V , Transformation ) // 'Undo'
      This allows more complex transformations combining translate, scale, rotate, and matrix. 
      vtransform() macro applies a transformation (rotate, scale, translate, matrix) to a point. 
      vinv_transform() does the inverse transformations ('undo').
*/
//---------------------------------------------------------
#include "transform.inc"
//---------------------------------------------------------
  #declare A = < 1.5, 0.3, 0.25 >;
  #declare Trans1 = transform{ rotate<0,-50,0> translate<0,0.7,0>; };
 
  #declare B = vtransform ( A, Trans1 );
//---------------------------------------------------------
//---------------------------------------------------------