| 86 |
|
.I +g |
| 87 |
|
option to save just the named group(s). |
| 88 |
|
.PP |
| 89 |
< |
A |
| 89 |
> |
The |
| 90 |
|
.I "\-c epsilon" |
| 91 |
< |
parameter may be given to coalesce vertices that are within the given epsilon. |
| 91 |
> |
option tells |
| 92 |
> |
.I robjutil |
| 93 |
> |
to coalesce vertices that are within the given epsilon. |
| 94 |
|
This is useful to improve the connectivity of models that were produced |
| 95 |
|
in a sloppy conversion process from independent polygons. |
| 96 |
|
When producing a Radiance file via the |
| 113 |
|
except that the |
| 114 |
|
.I \-a |
| 115 |
|
option is not supported for creating arrays of objects. |
| 116 |
< |
Also, any scaling applied does not affect the epsilon value given for |
| 116 |
> |
Also, any scaling factors do not affect the epsilon value given for |
| 117 |
|
coalescing vertices, as this operation is applied prior to the transform, |
| 118 |
|
even if |
| 119 |
|
.I \-c |
| 135 |
|
To rotate the scene 90 degrees about the Y-axis and scale by 10: |
| 136 |
|
.IP "" .2i |
| 137 |
|
robjutil -x "-ry 90 -s 10" orig.obj > transformed.obj |
| 138 |
+ |
.SH NOTES |
| 139 |
+ |
The .OBJ output of |
| 140 |
+ |
.I robjutil |
| 141 |
+ |
uses relative indices, so files it produces may be concatenated |
| 142 |
+ |
on the input of other tools such as |
| 143 |
+ |
.I obj2rad |
| 144 |
+ |
and |
| 145 |
+ |
.I obj2mesh |
| 146 |
+ |
by piping from |
| 147 |
+ |
.I cat(1) |
| 148 |
+ |
or similar. |
| 149 |
+ |
This offers a convenient way to separate geometry from a single .OBJ |
| 150 |
+ |
input, manipulate it in some way, then recombine during conversion. |
| 151 |
+ |
.PP |
| 152 |
+ |
Unlike |
| 153 |
+ |
.I obj2rad |
| 154 |
+ |
and |
| 155 |
+ |
.I obj2mesh, |
| 156 |
+ |
.I robjutil |
| 157 |
+ |
with the |
| 158 |
+ |
.I +r |
| 159 |
+ |
option will not substitute the group name for a material id if no |
| 160 |
+ |
.I usemtl |
| 161 |
+ |
statements are found on the input. |
| 162 |
+ |
Instead, it will assign each surface the material |
| 163 |
+ |
.I DEFAULT_MATERIAL. |
| 164 |
+ |
Since it is possible to use the |
| 165 |
+ |
.I +/-g |
| 166 |
+ |
option to select groups to include or exclude on output, it is |
| 167 |
+ |
still possible to assign materials by group manually. |
| 168 |
|
.SH AUTHOR |
| 169 |
|
Greg Ward |
| 170 |
|
.SH "SEE ALSO" |
| 171 |
< |
obj2mesh(1), obj2rad(1) oconv(1), xform(1) |
| 171 |
> |
cat(1), obj2mesh(1), obj2rad(1) oconv(1), xform(1) |
