| 136 |
|
statement) is numbered 1, and likewise |
| 137 |
|
for the first texture coordinate and the first surface normal. |
| 138 |
|
Negative indices count backward from the current position in |
| 139 |
< |
the input, where -1 is the last vertex encountered, -2 |
| 139 |
> |
the input, where \-1 is the last vertex encountered, \-2 |
| 140 |
|
is the one before that, etc. |
| 141 |
|
An index of 0 may be used for the vertex texture or normal to |
| 142 |
|
indicate none, or these may be left off entirely. |
| 143 |
|
All faces will be broken into triangles in the final mesh. |
| 144 |
– |
.I Obj2mesh |
| 145 |
– |
currently makes an unsafe assumption that faces are convex, |
| 146 |
– |
which may result in odd results if they are not. |
| 144 |
|
.PP |
| 145 |
|
All other statement types will be ignored on the input. |
| 146 |
|
Statements understood by |
| 181 |
|
To create a compiled triangle mesh from the scene file mesh.obj |
| 182 |
|
using materials from the file mesh.mat: |
| 183 |
|
.IP "" .2i |
| 184 |
< |
obj2mesh -a mesh.mat mesh.obj mesh.rtm |
| 184 |
> |
obj2mesh \-a mesh.mat mesh.obj mesh.rtm |
| 185 |
|
.PP |
| 186 |
|
To use local coordinates to place a square tiled image on a mesh object: |
| 187 |
|
.sp |
| 188 |
|
.nf |
| 189 |
|
void colorpict tiled_pat |
| 190 |
< |
7 red green blue mytile.pic . frac(Lu) frac(Lv) |
| 190 |
> |
7 red green blue mytile.hdr . frac(Lu) frac(Lv) |
| 191 |
|
0 |
| 192 |
|
0 |
| 193 |
|
|
