Get random asserts when trying to Lod meshes for StaticGeometry, produced by ogre-procedural primitives

[slapin]

what():  RuntimeAssertionException: cost >= 0 && cost != LodData::UNINITIALIZED_COLLAPSE_COST failed. Invalid collapse cost in computeEdgeCollapseCost at /media/slapin/library/ogre3/ogre/Components/MeshLodGenerator/src/OgreLodCollapseCostCurvature.cpp

usually moving mesh a tiny bit in random direction makes assert go away

[slapin]

Usually lots of stuff like this preceeds assert (that is for 8 x 8 x 8 segment box)

Note: Mesh instance 'lotbase0_750_0' was defined as manually loaded, but no manual loader was provided. This Resource will be lost if it has to be reloaded.
In lotbase0_750_0 malformed triangle found with ID: 0. 
1. vertex position: (-inf, -4, -inf) vertex ID: 0
2. vertex position: (-300, -3.5, -300) vertex ID: 9
3. vertex position: (-inf, -4, -inf) vertex ID: 1
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 2. 
1. vertex position: (-inf, -4, -inf) vertex ID: 1
2. vertex position: (-225, -3.5, -300) vertex ID: 10
3. vertex position: (-inf, -4, -inf) vertex ID: 2
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 4. 
1. vertex position: (-inf, -4, -inf) vertex ID: 2
2. vertex position: (-150, -3.5, -300) vertex ID: 11
3. vertex position: (-inf, -4, -inf) vertex ID: 3
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 10. 
1. vertex position: (inf, -4, -inf) vertex ID: 5
2. vertex position: (75, -3.5, -300) vertex ID: 14
3. vertex position: (inf, -4, -inf) vertex ID: 6
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 12. 
1. vertex position: (inf, -4, -inf) vertex ID: 6
2. vertex position: (150, -3.5, -300) vertex ID: 15
3. vertex position: (inf, -4, -inf) vertex ID: 7
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 14. 
1. vertex position: (inf, -4, -inf) vertex ID: 7
2. vertex position: (225, -3.5, -300) vertex ID: 16
3. vertex position: (inf, -4, -inf) vertex ID: 8
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 241. 
1. vertex position: (-225, -3.5, 300) vertex ID: 145
2. vertex position: (-inf, -4, inf) vertex ID: 153
3. vertex position: (-inf, -4, inf) vertex ID: 154
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 243. 
1. vertex position: (-150, -3.5, 300) vertex ID: 146
2. vertex position: (-inf, -4, inf) vertex ID: 154
3. vertex position: (-inf, -4, inf) vertex ID: 155
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 245. 
1. vertex position: (-75, -3.5, 300) vertex ID: 147
2. vertex position: (-inf, -4, inf) vertex ID: 155
3. vertex position: (-inf, -4, inf) vertex ID: 156
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 251. 
1. vertex position: (150, -3.5, 300) vertex ID: 150
2. vertex position: (inf, -4, inf) vertex ID: 158
3. vertex position: (inf, -4, inf) vertex ID: 159
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 253. 
1. vertex position: (225, -3.5, 300) vertex ID: 151
2. vertex position: (inf, -4, inf) vertex ID: 159
3. vertex position: (inf, -4, inf) vertex ID: 160
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 255. 
1. vertex position: (300, -3.5, 300) vertex ID: 152
2. vertex position: (inf, -4, inf) vertex ID: 160
3. vertex position: (inf, -4, inf) vertex ID: 161
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 256. 
1. vertex position: (-inf, -4, inf) vertex ID: 162
2. vertex position: (-inf, -4, inf) vertex ID: 171
3. vertex position: (-inf, -4, inf) vertex ID: 163
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 257. 
1. vertex position: (-inf, -4, inf) vertex ID: 163
2. vertex position: (-inf, -4, inf) vertex ID: 171
3. vertex position: (-inf, -4, inf) vertex ID: 172
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 258. 
1. vertex position: (-inf, -4, inf) vertex ID: 163
2. vertex position: (-inf, -4, inf) vertex ID: 172
3. vertex position: (-inf, -4, inf) vertex ID: 164
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 259. 
1. vertex position: (-inf, -4, inf) vertex ID: 164
2. vertex position: (-inf, -4, inf) vertex ID: 172
3. vertex position: (-inf, -4, inf) vertex ID: 173
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 260. 
1. vertex position: (-inf, -4, inf) vertex ID: 164
2. vertex position: (-inf, -4, inf) vertex ID: 173
3. vertex position: (-inf, -4, inf) vertex ID: 165
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 261. 
1. vertex position: (-inf, -4, inf) vertex ID: 165
2. vertex position: (-inf, -4, inf) vertex ID: 173
3. vertex position: (-inf, -4, inf) vertex ID: 174
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 262. 
1. vertex position: (-inf, -4, inf) vertex ID: 165
2. vertex position: (-inf, -4, inf) vertex ID: 174
3. vertex position: (-nan, -4, inf) vertex ID: 166
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 265. 
1. vertex position: (inf, -4, inf) vertex ID: 167
2. vertex position: (-nan, -4, inf) vertex ID: 175
3. vertex position: (inf, -4, inf) vertex ID: 176
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 266. 
1. vertex position: (inf, -4, inf) vertex ID: 167
2. vertex position: (inf, -4, inf) vertex ID: 176
3. vertex position: (inf, -4, inf) vertex ID: 168
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 267. 
1. vertex position: (inf, -4, inf) vertex ID: 168
2. vertex position: (inf, -4, inf) vertex ID: 176
3. vertex position: (inf, -4, inf) vertex ID: 177
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 268. 
1. vertex position: (inf, -4, inf) vertex ID: 168
2. vertex position: (inf, -4, inf) vertex ID: 177
3. vertex position: (inf, -4, inf) vertex ID: 169
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 269. 
1. vertex position: (inf, -4, inf) vertex ID: 169
2. vertex position: (inf, -4, inf) vertex ID: 177
3. vertex position: (inf, -4, inf) vertex ID: 178
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 270. 
1. vertex position: (inf, -4, inf) vertex ID: 169
2. vertex position: (inf, -4, inf) vertex ID: 178
3. vertex position: (inf, -4, inf) vertex ID: 170
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 271. 
1. vertex position: (inf, -4, inf) vertex ID: 170
2. vertex position: (inf, -4, inf) vertex ID: 178
3. vertex position: (inf, -4, inf) vertex ID: 179
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 272. 
1. vertex position: (-inf, -4, inf) vertex ID: 171
2. vertex position: (-inf, -4, inf) vertex ID: 180
3. vertex position: (-inf, -4, inf) vertex ID: 172
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 273. 
1. vertex position: (-inf, -4, inf) vertex ID: 172
2. vertex position: (-inf, -4, inf) vertex ID: 180
3. vertex position: (-inf, -4, inf) vertex ID: 181
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 274. 
1. vertex position: (-inf, -4, inf) vertex ID: 172
2. vertex position: (-inf, -4, inf) vertex ID: 181
3. vertex position: (-inf, -4, inf) vertex ID: 173
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 275. 
1. vertex position: (-inf, -4, inf) vertex ID: 173
2. vertex position: (-inf, -4, inf) vertex ID: 181
3. vertex position: (-inf, -4, inf) vertex ID: 182
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 276. 
1. vertex position: (-inf, -4, inf) vertex ID: 173
2. vertex position: (-inf, -4, inf) vertex ID: 182
3. vertex position: (-inf, -4, inf) vertex ID: 174
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 277. 
1. vertex position: (-inf, -4, inf) vertex ID: 174
2. vertex position: (-inf, -4, inf) vertex ID: 182
3. vertex position: (-inf, -4, inf) vertex ID: 183
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 278. 
1. vertex position: (-inf, -4, inf) vertex ID: 174
2. vertex position: (-inf, -4, inf) vertex ID: 183
3. vertex position: (-nan, -4, inf) vertex ID: 175
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 281. 
1. vertex position: (inf, -4, inf) vertex ID: 176
2. vertex position: (-nan, -4, inf) vertex ID: 184
3. vertex position: (inf, -4, inf) vertex ID: 185
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 282. 
1. vertex position: (inf, -4, inf) vertex ID: 176
2. vertex position: (inf, -4, inf) vertex ID: 185
3. vertex position: (inf, -4, inf) vertex ID: 177
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 283. 
1. vertex position: (inf, -4, inf) vertex ID: 177
2. vertex position: (inf, -4, inf) vertex ID: 185
3. vertex position: (inf, -4, inf) vertex ID: 186
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 284. 
1. vertex position: (inf, -4, inf) vertex ID: 177
2. vertex position: (inf, -4, inf) vertex ID: 186
3. vertex position: (inf, -4, inf) vertex ID: 178
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 285. 
1. vertex position: (inf, -4, inf) vertex ID: 178
2. vertex position: (inf, -4, inf) vertex ID: 186
3. vertex position: (inf, -4, inf) vertex ID: 187
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 286. 
1. vertex position: (inf, -4, inf) vertex ID: 178
2. vertex position: (inf, -4, inf) vertex ID: 187
3. vertex position: (inf, -4, inf) vertex ID: 179
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 287. 
1. vertex position: (inf, -4, inf) vertex ID: 179
2. vertex position: (inf, -4, inf) vertex ID: 187
3. vertex position: (inf, -4, inf) vertex ID: 188
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 288. 
1. vertex position: (-inf, -4, inf) vertex ID: 180
2. vertex position: (-inf, -4, inf) vertex ID: 189
3. vertex position: (-inf, -4, inf) vertex ID: 181
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 289. 
1. vertex position: (-inf, -4, inf) vertex ID: 181
2. vertex position: (-inf, -4, inf) vertex ID: 189
3. vertex position: (-inf, -4, inf) vertex ID: 190
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 290. 
1. vertex position: (-inf, -4, inf) vertex ID: 181
2. vertex position: (-inf, -4, inf) vertex ID: 190
3. vertex position: (-inf, -4, inf) vertex ID: 182
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 291. 
1. vertex position: (-inf, -4, inf) vertex ID: 182
2. vertex position: (-inf, -4, inf) vertex ID: 190
3. vertex position: (-inf, -4, inf) vertex ID: 191
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 292. 
1. vertex position: (-inf, -4, inf) vertex ID: 182
2. vertex position: (-inf, -4, inf) vertex ID: 191
3. vertex position: (-inf, -4, inf) vertex ID: 183
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 293. 
1. vertex position: (-inf, -4, inf) vertex ID: 183
2. vertex position: (-inf, -4, inf) vertex ID: 191
3. vertex position: (-inf, -4, inf) vertex ID: 192
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 294. 
1. vertex position: (-inf, -4, inf) vertex ID: 183
2. vertex position: (-inf, -4, inf) vertex ID: 192
3. vertex position: (-nan, -4, inf) vertex ID: 184
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 297. 
1. vertex position: (inf, -4, inf) vertex ID: 185
2. vertex position: (-nan, -4, inf) vertex ID: 193
3. vertex position: (inf, -4, inf) vertex ID: 194
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 298. 
1. vertex position: (inf, -4, inf) vertex ID: 185
2. vertex position: (inf, -4, inf) vertex ID: 194
3. vertex position: (inf, -4, inf) vertex ID: 186
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 299. 
1. vertex position: (inf, -4, inf) vertex ID: 186
2. vertex position: (inf, -4, inf) vertex ID: 194
3. vertex position: (inf, -4, inf) vertex ID: 195
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 300. 
1. vertex position: (inf, -4, inf) vertex ID: 186
2. vertex position: (inf, -4, inf) vertex ID: 195
3. vertex position: (inf, -4, inf) vertex ID: 187
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 301. 
1. vertex position: (inf, -4, inf) vertex ID: 187
2. vertex position: (inf, -4, inf) vertex ID: 195
3. vertex position: (inf, -4, inf) vertex ID: 196
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 302. 
1. vertex position: (inf, -4, inf) vertex ID: 187
2. vertex position: (inf, -4, inf) vertex ID: 196
3. vertex position: (inf, -4, inf) vertex ID: 188
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 303. 
1. vertex position: (inf, -4, inf) vertex ID: 188
2. vertex position: (inf, -4, inf) vertex ID: 196
3. vertex position: (inf, -4, inf) vertex ID: 197
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 304. 
1. vertex position: (-inf, -4, inf) vertex ID: 189
2. vertex position: (-inf, -4, -nan) vertex ID: 198
3. vertex position: (-inf, -4, inf) vertex ID: 190
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 306. 
1. vertex position: (-inf, -4, inf) vertex ID: 190
2. vertex position: (-inf, -4, -nan) vertex ID: 199
3. vertex position: (-inf, -4, inf) vertex ID: 191
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 308. 
1. vertex position: (-inf, -4, inf) vertex ID: 191
2. vertex position: (-inf, -4, -nan) vertex ID: 200
3. vertex position: (-inf, -4, inf) vertex ID: 192
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 314. 
1. vertex position: (inf, -4, inf) vertex ID: 194
2. vertex position: (inf, -4, -nan) vertex ID: 203
3. vertex position: (inf, -4, inf) vertex ID: 195
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 316. 
1. vertex position: (inf, -4, inf) vertex ID: 195
2. vertex position: (inf, -4, -nan) vertex ID: 204
3. vertex position: (inf, -4, inf) vertex ID: 196
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 318. 
1. vertex position: (inf, -4, inf) vertex ID: 196
2. vertex position: (inf, -4, -nan) vertex ID: 205
3. vertex position: (inf, -4, inf) vertex ID: 197
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 321. 
1. vertex position: (-inf, -4, -nan) vertex ID: 199
2. vertex position: (-inf, -4, -inf) vertex ID: 207
3. vertex position: (-inf, -4, -inf) vertex ID: 208
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 323. 
1. vertex position: (-inf, -4, -nan) vertex ID: 200
2. vertex position: (-inf, -4, -inf) vertex ID: 208
3. vertex position: (-inf, -4, -inf) vertex ID: 209
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 325. 
1. vertex position: (-inf, -4, -nan) vertex ID: 201
2. vertex position: (-inf, -4, -inf) vertex ID: 209
3. vertex position: (-inf, -4, -inf) vertex ID: 210
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 331. 
1. vertex position: (inf, -4, -nan) vertex ID: 204
2. vertex position: (inf, -4, -inf) vertex ID: 212
3. vertex position: (inf, -4, -inf) vertex ID: 213
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 333. 
1. vertex position: (inf, -4, -nan) vertex ID: 205
2. vertex position: (inf, -4, -inf) vertex ID: 213
3. vertex position: (inf, -4, -inf) vertex ID: 214
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 335. 
1. vertex position: (inf, -4, -nan) vertex ID: 206
2. vertex position: (inf, -4, -inf) vertex ID: 214
3. vertex position: (inf, -4, -inf) vertex ID: 215
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 336. 
1. vertex position: (-inf, -4, -inf) vertex ID: 207
2. vertex position: (-inf, -4, -inf) vertex ID: 216
3. vertex position: (-inf, -4, -inf) vertex ID: 208
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 337. 
1. vertex position: (-inf, -4, -inf) vertex ID: 208
2. vertex position: (-inf, -4, -inf) vertex ID: 216
3. vertex position: (-inf, -4, -inf) vertex ID: 217
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 338. 
1. vertex position: (-inf, -4, -inf) vertex ID: 208
2. vertex position: (-inf, -4, -inf) vertex ID: 217
3. vertex position: (-inf, -4, -inf) vertex ID: 209
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 339. 
1. vertex position: (-inf, -4, -inf) vertex ID: 209
2. vertex position: (-inf, -4, -inf) vertex ID: 217
3. vertex position: (-inf, -4, -inf) vertex ID: 218
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 340. 
1. vertex position: (-inf, -4, -inf) vertex ID: 209
2. vertex position: (-inf, -4, -inf) vertex ID: 218
3. vertex position: (-inf, -4, -inf) vertex ID: 210
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 341. 
1. vertex position: (-inf, -4, -inf) vertex ID: 210
2. vertex position: (-inf, -4, -inf) vertex ID: 218
3. vertex position: (-inf, -4, -inf) vertex ID: 219
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 342. 
1. vertex position: (-inf, -4, -inf) vertex ID: 210
2. vertex position: (-inf, -4, -inf) vertex ID: 219
3. vertex position: (-nan, -4, -inf) vertex ID: 211
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 345. 
1. vertex position: (inf, -4, -inf) vertex ID: 212
2. vertex position: (-nan, -4, -inf) vertex ID: 220
3. vertex position: (inf, -4, -inf) vertex ID: 221
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 346. 
1. vertex position: (inf, -4, -inf) vertex ID: 212
2. vertex position: (inf, -4, -inf) vertex ID: 221
3. vertex position: (inf, -4, -inf) vertex ID: 213
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 347. 
1. vertex position: (inf, -4, -inf) vertex ID: 213
2. vertex position: (inf, -4, -inf) vertex ID: 221
3. vertex position: (inf, -4, -inf) vertex ID: 222
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 348. 
1. vertex position: (inf, -4, -inf) vertex ID: 213
2. vertex position: (inf, -4, -inf) vertex ID: 222
3. vertex position: (inf, -4, -inf) vertex ID: 214
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 349. 
1. vertex position: (inf, -4, -inf) vertex ID: 214
2. vertex position: (inf, -4, -inf) vertex ID: 222
3. vertex position: (inf, -4, -inf) vertex ID: 223
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 350. 
1. vertex position: (inf, -4, -inf) vertex ID: 214
2. vertex position: (inf, -4, -inf) vertex ID: 223
3. vertex position: (inf, -4, -inf) vertex ID: 215
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 351. 
1. vertex position: (inf, -4, -inf) vertex ID: 215
2. vertex position: (inf, -4, -inf) vertex ID: 223
3. vertex position: (inf, -4, -inf) vertex ID: 224
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 352. 
1. vertex position: (-inf, -4, -inf) vertex ID: 216
2. vertex position: (-inf, -4, -inf) vertex ID: 225
3. vertex position: (-inf, -4, -inf) vertex ID: 217
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 353. 
1. vertex position: (-inf, -4, -inf) vertex ID: 217
2. vertex position: (-inf, -4, -inf) vertex ID: 225
3. vertex position: (-inf, -4, -inf) vertex ID: 226
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 354. 
1. vertex position: (-inf, -4, -inf) vertex ID: 217
2. vertex position: (-inf, -4, -inf) vertex ID: 226
3. vertex position: (-inf, -4, -inf) vertex ID: 218
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 355. 
1. vertex position: (-inf, -4, -inf) vertex ID: 218
2. vertex position: (-inf, -4, -inf) vertex ID: 226
3. vertex position: (-inf, -4, -inf) vertex ID: 227
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 356. 
1. vertex position: (-inf, -4, -inf) vertex ID: 218
2. vertex position: (-inf, -4, -inf) vertex ID: 227
3. vertex position: (-inf, -4, -inf) vertex ID: 219
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 357. 
1. vertex position: (-inf, -4, -inf) vertex ID: 219
2. vertex position: (-inf, -4, -inf) vertex ID: 227
3. vertex position: (-inf, -4, -inf) vertex ID: 228
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 358. 
1. vertex position: (-inf, -4, -inf) vertex ID: 219
2. vertex position: (-inf, -4, -inf) vertex ID: 228
3. vertex position: (-nan, -4, -inf) vertex ID: 220
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 361. 
1. vertex position: (inf, -4, -inf) vertex ID: 221
2. vertex position: (-nan, -4, -inf) vertex ID: 229
3. vertex position: (inf, -4, -inf) vertex ID: 230
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 362. 
1. vertex position: (inf, -4, -inf) vertex ID: 221
2. vertex position: (inf, -4, -inf) vertex ID: 230
3. vertex position: (inf, -4, -inf) vertex ID: 222
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 363. 
1. vertex position: (inf, -4, -inf) vertex ID: 222
2. vertex position: (inf, -4, -inf) vertex ID: 230
3. vertex position: (inf, -4, -inf) vertex ID: 231
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 364. 
1. vertex position: (inf, -4, -inf) vertex ID: 222
2. vertex position: (inf, -4, -inf) vertex ID: 231
3. vertex position: (inf, -4, -inf) vertex ID: 223
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 365. 
1. vertex position: (inf, -4, -inf) vertex ID: 223
2. vertex position: (inf, -4, -inf) vertex ID: 231
3. vertex position: (inf, -4, -inf) vertex ID: 232
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 366. 
1. vertex position: (inf, -4, -inf) vertex ID: 223
2. vertex position: (inf, -4, -inf) vertex ID: 232
3. vertex position: (inf, -4, -inf) vertex ID: 224
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 367. 
1. vertex position: (inf, -4, -inf) vertex ID: 224
2. vertex position: (inf, -4, -inf) vertex ID: 232
3. vertex position: (inf, -4, -inf) vertex ID: 233
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 368. 
1. vertex position: (-inf, -4, -inf) vertex ID: 225
2. vertex position: (-inf, -4, -inf) vertex ID: 234
3. vertex position: (-inf, -4, -inf) vertex ID: 226
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 369. 
1. vertex position: (-inf, -4, -inf) vertex ID: 226
2. vertex position: (-inf, -4, -inf) vertex ID: 234
3. vertex position: (-inf, -4, -inf) vertex ID: 235
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 370. 
1. vertex position: (-inf, -4, -inf) vertex ID: 226
2. vertex position: (-inf, -4, -inf) vertex ID: 235
3. vertex position: (-inf, -4, -inf) vertex ID: 227
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 371. 
1. vertex position: (-inf, -4, -inf) vertex ID: 227
2. vertex position: (-inf, -4, -inf) vertex ID: 235
3. vertex position: (-inf, -4, -inf) vertex ID: 236
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 372. 
1. vertex position: (-inf, -4, -inf) vertex ID: 227
2. vertex position: (-inf, -4, -inf) vertex ID: 236
3. vertex position: (-inf, -4, -inf) vertex ID: 228
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 373. 
1. vertex position: (-inf, -4, -inf) vertex ID: 228
2. vertex position: (-inf, -4, -inf) vertex ID: 236
3. vertex position: (-inf, -4, -inf) vertex ID: 237
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 374. 
1. vertex position: (-inf, -4, -inf) vertex ID: 228
2. vertex position: (-inf, -4, -inf) vertex ID: 237
3. vertex position: (-nan, -4, -inf) vertex ID: 229
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 377. 
1. vertex position: (inf, -4, -inf) vertex ID: 230
2. vertex position: (-nan, -4, -inf) vertex ID: 238
3. vertex position: (inf, -4, -inf) vertex ID: 239
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 378. 
1. vertex position: (inf, -4, -inf) vertex ID: 230
2. vertex position: (inf, -4, -inf) vertex ID: 239
3. vertex position: (inf, -4, -inf) vertex ID: 231
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 379. 
1. vertex position: (inf, -4, -inf) vertex ID: 231
2. vertex position: (inf, -4, -inf) vertex ID: 239
3. vertex position: (inf, -4, -inf) vertex ID: 240
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 380. 
1. vertex position: (inf, -4, -inf) vertex ID: 231
2. vertex position: (inf, -4, -inf) vertex ID: 240
3. vertex position: (inf, -4, -inf) vertex ID: 232
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 381. 
1. vertex position: (inf, -4, -inf) vertex ID: 232
2. vertex position: (inf, -4, -inf) vertex ID: 240
3. vertex position: (inf, -4, -inf) vertex ID: 241
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 382. 
1. vertex position: (inf, -4, -inf) vertex ID: 232
2. vertex position: (inf, -4, -inf) vertex ID: 241
3. vertex position: (inf, -4, -inf) vertex ID: 233
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 383. 
1. vertex position: (inf, -4, -inf) vertex ID: 233
2. vertex position: (inf, -4, -inf) vertex ID: 241
3. vertex position: (inf, -4, -inf) vertex ID: 242
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 625. 
1. vertex position: (-300, -3.5, -225) vertex ID: 388
2. vertex position: (-inf, -4, -inf) vertex ID: 396
3. vertex position: (-inf, -4, -inf) vertex ID: 397
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 627. 
1. vertex position: (-300, -3.5, -150) vertex ID: 389
2. vertex position: (-inf, -4, -inf) vertex ID: 397
3. vertex position: (-inf, -4, -inf) vertex ID: 398
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 629. 
1. vertex position: (-300, -3.5, -75) vertex ID: 390
2. vertex position: (-inf, -4, -inf) vertex ID: 398
3. vertex position: (-inf, -4, -inf) vertex ID: 399
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 635. 
1. vertex position: (-300, -3.5, 150) vertex ID: 393
2. vertex position: (-inf, -4, inf) vertex ID: 401
3. vertex position: (-inf, -4, inf) vertex ID: 402
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 637. 
1. vertex position: (-300, -3.5, 225) vertex ID: 394
2. vertex position: (-inf, -4, inf) vertex ID: 402
3. vertex position: (-inf, -4, inf) vertex ID: 403
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 639. 
1. vertex position: (-300, -3.5, 300) vertex ID: 395
2. vertex position: (-inf, -4, inf) vertex ID: 403
3. vertex position: (-inf, -4, inf) vertex ID: 404
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 640. 
1. vertex position: (inf, -4, -inf) vertex ID: 405
2. vertex position: (300, -3.5, -300) vertex ID: 414
3. vertex position: (inf, -4, -inf) vertex ID: 406
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 642. 
1. vertex position: (inf, -4, -inf) vertex ID: 406
2. vertex position: (300, -3.5, -225) vertex ID: 415
3. vertex position: (inf, -4, -inf) vertex ID: 407
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 644. 
1. vertex position: (inf, -4, -inf) vertex ID: 407
2. vertex position: (300, -3.5, -150) vertex ID: 416
3. vertex position: (inf, -4, -inf) vertex ID: 408
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 650. 
1. vertex position: (inf, -4, inf) vertex ID: 410
2. vertex position: (300, -3.5, 75) vertex ID: 419
3. vertex position: (inf, -4, inf) vertex ID: 411
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 652. 
1. vertex position: (inf, -4, inf) vertex ID: 411
2. vertex position: (300, -3.5, 150) vertex ID: 420
3. vertex position: (inf, -4, inf) vertex ID: 412
It will be excluded from Lod level calculations.
In lotbase0_750_0 malformed triangle found with ID: 654. 
1. vertex position: (inf, -4, inf) vertex ID: 412
2. vertex position: (300, -3.5, 225) vertex ID: 421
3. vertex position: (inf, -4, inf) vertex ID: 413
It will be excluded from Lod level calculations.

Had no such problems from extrusion or lathe.

[slapin]

However if I add -0.01f vertical offset, no problems occur. Most of time I guess the errors are harmless, but sometimes lead to assert...

[paroj]

ideally you should detect and skip those triangles on generation as they only add to the size but are never actually rendered