Radiance genworm program

GENWORM(1)                                                          GENWORM(1)

NAME

       genworm - generate a RADIANCE description of a functional worm

SYNOPSIS

       genworm  mat name 'x(t)' 'y(t)' 'z(t)' 'r(t)' nseg [ -e expr ][ -f file
       ]

DESCRIPTION

       Genworm produces a RADIANCE scene description of a worm defined by  the
       parametric  equations  x(t), y(t), z(t), and r(t) (the radius).  T will
       vary from 0 to 1 in steps of 1/nseg.  The surface will be  composed  of
       nseg cones or cylinders and nseg+1 spheres.  The expressions are of the
       same type used  in  RADIANCE  function  files.   Auxiliary  expressions
       and/or files may be specified in any number of -e and -f options.

EXAMPLE

       To generate a banana:

         genworm yellow banana '0' '5*sin(t)' '5*cos(t)' '.4-(.5-t)*(.5-t)' 20

AUTHOR

       Greg Ward

BUGS

       Since the worm is constructed of  intersecting  surfaces,  only  opaque
       materials  should be used with this object.  Also, a worm cannot double
       back inside itself without making a mess.

SEE ALSO

       genbox(1), genrev(1), gensurf(1), icalc(1), rpict(1), rvu(1), xform(1)

RADIANCE                           11/15/93                         GENWORM(1)