NAME¶
genprism - generate a RADIANCE description of a prism
SYNOPSIS¶
genprism mat name {
- |
vfile |
N v1 v2 .. vN } [
-l lvect ][
-r radius ][
-c ][
-e ]
DESCRIPTION¶
Genprism produces a RADIANCE scene description of a prism, or extruded
polygon. The polygon to extrude lies in the z==0 plane, and is given as a list
of (x,y) pairs on the standard input (-), or from the file
vfile, or on
the command line preceded by the number of vertices,
N. The order of
the vertices and the extrusion vector
lvect (default (0,0,1)) determine
the surface orientations. The surfaces that make up the prism will be modified
by
mat and their identifiers will begin with
name. The
-r
option may be used to round the corners of the object using spheres and
cylinders. The
-c option inhibits generation of a face connecting the
last vertex to the first. The
-e option inhibits generation of the end
polygons.
EXAMPLE¶
To produce a equilateral triangular prism:
-
- genprism clear_plastic prism 3 0 0 .5 .866 1 0
AUTHOR¶
Greg Ward
BUGS¶
The rounding option only works for opaque prisms with outward facing normals. If
the normals face inward, the appearance will be bizarre.
SEE ALSO¶
genrbox(1),
genrev(1),
gensurf(1),
genworm(1),
rpict(1),
rvu(1),
xform(1)
