| 14 |
|
.B "\-r maxres" |
| 15 |
|
][ |
| 16 |
|
.B \-w |
| 17 |
+ |
][ |
| 18 |
+ |
.B \-v |
| 19 |
|
] |
| 20 |
|
[ |
| 21 |
|
.B "input.obj" |
| 63 |
|
.I \-n |
| 64 |
|
option specifies the maximum surface set size for |
| 65 |
|
each voxel. |
| 66 |
< |
Larger numbers result in quicker mesh generation needing |
| 67 |
< |
less memory, but potentially slower rendering. |
| 66 |
< |
Smaller values may produce faster renderings, |
| 67 |
< |
since the default number (15) is on the high side to reduce |
| 68 |
< |
the compiled mesh octree size. |
| 66 |
> |
Larger numbers result in quicker mesh generation, |
| 67 |
> |
but potentially slower rendering. |
| 68 |
|
Values below 6 are not recommended, since this is the median |
| 69 |
|
valence for a mesh vertex (the number of adjacent faces), |
| 70 |
|
and smaller values will result in pointless octree subdivision. |
| 71 |
+ |
The default setting is 9. |
| 72 |
|
.PP |
| 73 |
|
The |
| 74 |
|
.I \-r |
| 80 |
|
The |
| 81 |
|
.I \-w |
| 82 |
|
option suppresses warnings. |
| 83 |
+ |
The |
| 84 |
+ |
.I \-v |
| 85 |
+ |
option prints out final mesh statistics. |
| 86 |
|
.PP |
| 87 |
|
Although the mesh file format is binary, it is meant to be portable |
| 88 |
|
between machines. |
| 141 |
|
statement) is numbered 1, and likewise |
| 142 |
|
for the first texture coordinate and the first surface normal. |
| 143 |
|
Negative indices count backward from the current position in |
| 144 |
< |
the input, where -1 is the last vertex encountered, -2 |
| 144 |
> |
the input, where \-1 is the last vertex encountered, \-2 |
| 145 |
|
is the one before that, etc. |
| 146 |
|
An index of 0 may be used for the vertex texture or normal to |
| 147 |
|
indicate none, or these may be left off entirely. |
| 148 |
|
All faces will be broken into triangles in the final mesh. |
| 146 |
– |
.I Obj2mesh |
| 147 |
– |
currently makes an unsafe assumption that faces are convex, |
| 148 |
– |
which may result in odd results if they are not. |
| 149 |
|
.PP |
| 150 |
|
All other statement types will be ignored on the input. |
| 151 |
|
Statements understood by |
| 186 |
|
To create a compiled triangle mesh from the scene file mesh.obj |
| 187 |
|
using materials from the file mesh.mat: |
| 188 |
|
.IP "" .2i |
| 189 |
< |
obj2mesh -a mesh.mat mesh.obj mesh.rtm |
| 189 |
> |
obj2mesh \-a mesh.mat mesh.obj mesh.rtm |
| 190 |
|
.PP |
| 191 |
|
To use local coordinates to place a square tiled image on a mesh object: |
| 192 |
|
.sp |
| 193 |
|
.nf |
| 194 |
|
void colorpict tiled_pat |
| 195 |
< |
7 red green blue mytile.pic . frac(Lu) frac(Lv) |
| 195 |
> |
7 red green blue mytile.hdr . frac(Lu) frac(Lv) |
| 196 |
|
0 |
| 197 |
|
0 |
| 198 |
|
|
| 211 |
|
.SH AUTHOR |
| 212 |
|
Greg Ward |
| 213 |
|
.SH "SEE ALSO" |
| 214 |
< |
gensurf(1), getinfo(1), make(1), obj2rad(1), |
| 214 |
> |
gensurf(1), getinfo(1), make(1), obj2rad(1), objutil(1) |
| 215 |
|
oconv(1), rpict(1), rvu(1), rtrace(1), xform(1) |
