| 1 |
|
.\" RCSid "$Id$" |
| 2 |
|
.TH GENBOX 1 11/15/93 RADIANCE |
| 3 |
|
.SH NAME |
| 4 |
< |
genbox - generate a RADIANCE description of a box |
| 4 |
> |
genbox - generate a RADIANCE or Wavefront description of a box |
| 5 |
|
.SH SYNOPSIS |
| 6 |
|
.B "genbox mat name xsiz ysiz zsiz" |
| 7 |
|
[ |
| 8 |
|
.B \-i |
| 9 |
|
][ |
| 10 |
– |
.B "\-r rad" |
| 11 |
– |
| |
| 10 |
|
.B "\-b bev" |
| 11 |
+ |
| |
| 12 |
+ |
.B "\-r rad" |
| 13 |
+ |
[ |
| 14 |
+ |
.B "\-n nseg |
| 15 |
+ |
][ |
| 16 |
+ |
.B \-s |
| 17 |
|
] |
| 18 |
+ |
][ |
| 19 |
+ |
.B \-o |
| 20 |
+ |
] |
| 21 |
|
.SH DESCRIPTION |
| 22 |
|
.I Genbox |
| 23 |
|
produces a RADIANCE scene description of a parallelepiped |
| 29 |
|
.I mat |
| 30 |
|
and their identifiers will begin with |
| 31 |
|
.I name. |
| 32 |
+ |
.PP |
| 33 |
|
The |
| 34 |
|
.I \-i |
| 35 |
|
option can be used to produce a box with inward directed surface |
| 36 |
|
normals. |
| 37 |
+ |
.PP |
| 38 |
|
The |
| 30 |
– |
.I \-r |
| 31 |
– |
option can be used to specify the radius for rounded edges. |
| 32 |
– |
The |
| 39 |
|
.I \-b |
| 40 |
|
option can be used to specify the indentation for beveled edges. |
| 41 |
+ |
.PP |
| 42 |
+ |
The |
| 43 |
+ |
.I \-r |
| 44 |
+ |
option can be used to specify the radius for rounded edges, which |
| 45 |
+ |
are normally |
| 46 |
+ |
modeled as cylinders and spheres for non-inverted RADIANCE output. |
| 47 |
+ |
However, this type of model only makes sense for external views of |
| 48 |
+ |
an opaque object. |
| 49 |
+ |
If a rounded box is inverted using |
| 50 |
+ |
.I \-i, |
| 51 |
+ |
then the corners and edges are modeled with polygons, instead. |
| 52 |
+ |
This option can also be forced by specifying a minimum number of |
| 53 |
+ |
segments with the |
| 54 |
+ |
.I \-n |
| 55 |
+ |
option. |
| 56 |
+ |
The |
| 57 |
+ |
.I \-s |
| 58 |
+ |
option controls whether surface normal smoothing is applied as well. |
| 59 |
+ |
.PP |
| 60 |
+ |
The |
| 61 |
+ |
.I \-o |
| 62 |
+ |
option specifies Wavefront .OBJ output, and |
| 63 |
+ |
also forces polygons to be used with the |
| 64 |
+ |
.I \-r |
| 65 |
+ |
option. |
| 66 |
+ |
If the |
| 67 |
+ |
.I \-s |
| 68 |
+ |
option is present, vertex normals are also produced for smooth rendering. |
| 69 |
|
.SH EXAMPLE |
| 70 |
< |
To produce a rectangular box made of wood with beveled edges: |
| 70 |
> |
To produce a rectangular box made of wood with rounded edges: |
| 71 |
|
.IP "" .2i |
| 72 |
< |
genbox wood box1 5 8 3 -b .5 > box1 |
| 72 |
> |
genbox wood box1 5 8 3 \-r .5 > box1.rad |
| 73 |
> |
.PP |
| 74 |
> |
To produce a box made of crystal with beveled edges: |
| 75 |
> |
.IP "" .2i |
| 76 |
> |
genbox crystal box2 3 7 1 \-b .1 > box2.rad |
| 77 |
> |
.PP |
| 78 |
> |
To produce a transparent box with smoothed, rounded edges: |
| 79 |
> |
.IP "" .2i |
| 80 |
> |
genbox glassy box3 2 4 3 -r .25 -n 16 -s > box3.rad |
| 81 |
|
.SH AUTHOR |
| 82 |
|
Greg Ward |
| 41 |
– |
.SH BUGS |
| 42 |
– |
Because spheres and cylinders are used to construct boxes with |
| 43 |
– |
rounded edges, a transparent box of this type appears quite messy. |
| 83 |
|
.SH "SEE ALSO" |
| 84 |
< |
genrev(1), gensurf(1), genworm(1), rpict(1), rview(1), xform(1) |
| 84 |
> |
genrev(1), gensurf(1), genworm(1), obj2mesh(1), obj2rad(1), |
| 85 |
> |
robjutil(1), rpict(1), rvu(1), xform(1) |
