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Comparing ray/doc/man/man1/robjutil.1 (file contents):
Revision 1.4 by greg, Fri Apr 3 02:32:58 2020 UTC vs.
Revision 1.6 by greg, Fri Mar 12 18:32:33 2021 UTC

# Line 19 | Line 19 | robjutil - operate on Wavefront .OBJ file
19   ][
20   .B "-c epsilon"
21   ][
22 + .B +T
23 + ][
24   .B "-x 'xf spec'"
25   ]
26   [
# Line 42 | Line 44 | and
44   .I obj2mesh(1)
45   converters.
46   The latter also preserves local texture coordinates for mapping materials.
47 + .PP
48   The
49   .I +v
50   option turns on verbose progress reports.
# Line 75 | Line 78 | The
78   and
79   .I \+m
80   options are mutually exclusive.
81 + .PP
82   Similarly, the
83   .I "\-g gname"
84   option says to remove all faces belonging to the group
# Line 85 | Line 89 | options may be given.
89   There is also a
90   .I +g
91   option to save just the named group(s).
92 + Object statements are treated the same as group statements in the input, so
93 + .I +/-g
94 + option can also be applied to object names.
95 + Note that an object name will be overridden by a group name that follows
96 + it in the input, and vice versa.
97   .PP
98   The
99   .I "\-c epsilon"
# Line 102 | Line 111 | at least for triangle mesh input.
111   does not attempt to break up non-planar polygons into triangles,
112   which is usually not a problem for .OBJ output, but may be for Radiance
113   scene descriptions (+r).
114 + .PP
115 + The
116 + .I +T
117 + option turns all faces with 4 or more sides into triangles.
118   .PP
119   The
120   .I \-x

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