Pure demo .model files

[shakotay2]

Here I am again - the rider of dead horses. I really don't know why I didn't use half floats that time, as suggested by finale00.

SWINGARM_01_LOD1_model.JPG

this format is difficult but I'll try to write an importer

but you didn't ever do - did you?

[llama]

I am trying to read this file too, so far I did a parser based on the information in your screenshot. But I cant figure out the pattern in them. Did you get the model by trial and error? The only thing I notice is that the file has an 8 bytes header with the first 4 bytes always set to 05,00,00,00 in every .model file of the game, but cant figure out what the next 4 bytes are since they all change.

[llama]

a couple of months ago I made a plugin for them

Do you have the source for it? Or any .model documentation? I need to implement it inside my own ModelViewer that uses my own engine. I am trying to get into this reverse engineering field and I am having troubles as beginner

[llama]

I realized that the indices always tell the first face as the bytes 0000,0001,0002 so I look up for the first appearance of magic number

Code: Select all

uint64_t 0x1000200010000

And I can get the starting address of the indices.

But I cant tell if the amount of vertices and indices is given by a sentinel value or a particular offset from the weird header values. So far I couldnt find any value of the vertices count or indices count I have

[llama]

Doing the same process as above I could find that there are two times this happens in a LOD1 file but this does not ocurre in a LOD3 file so this is a hack but I can use the second magic number address that happens after the indices address and substract the last one from the new address and divide that by 2 (the uint16 size) and get the amount of indices to read

[llama]

Nevermind, the process above breaks with a lot of other models so it wont work. I'll try to come up with another idea

[shakotay2]

So far I couldnt find any value of the vertices count or indices count I have

This is what I used for the Swingarm_01_LOD1 (strangely it's different from the model in my post as of Dec 07, 2015 3:50 pm,
maybe because it's an axle):
.

Pure Swingarm_01_LOD1.png

(Couldn't find the FI count of mesh 1 (1062 dec.) in the data.)

btw: please, don't create a post for every sentence. You can edit your posts...

edit: I assume CommonInventory.bin contains the parts that are common for all vehicles:

Code: Select all

  0 VER 1
  1 48
  2 FRAME
  3 1
  4 FRAME_LOD
  5 ..L.
  6 FGUARD
  7 1
  8 FRAMEGUARD_LOD
  9 .M..
 10 SKIDPLATE
 11 0
 12 BUMPER
 13 0
 14 BOOST_BOTTLE
 15 0
 16 ENGINE
 17 1
 18 ENGINE_LOD
 19 ..L.
 20 EXHAUST
 21 0
 22 FARING_BODY
 23 0
 24 FARING_MUDGUARD_FRONT_LEFT
 25 0
 26 FARING_MUDGUARD_FRONT_RIGHT
 27 0
 28 FARING_MUDGUARD_REAR
 29 0
 30 FARING_NOSECONE
 31 0
 32 FARING_RADIATORGUARD
 33 0
 34 SEAT
 35 0
 36 HANDLEBARS
 37 1
 38 HANDLEBARS_LOD
 39 ..L.
 40 GRIPS
 41 0
 42 HANDGUARDS
 43 0
 44 NERFBAR
 45 0
 46 LEFT_A_UARM
 47 0
 48 LEFT_A_LARM
 49 1
 50 A_ARM_LOD
 51 .ML.
 52 LEFT_A_SARM
 53 0
 54 LEFT_A_HUB
 55 0
 56 LEFT_A_BRAKE
 57 0
 58 LEFT_A_SPRING
 59 0
 60 LEFT_A_DAMPER
 61 0
 62 FRONT_LEFT_WHEEL_RIM
 63 0
 64 FRONT_LEFT_WHEEL_TIRE
 65 1
 66 WHEELS_LOD
 67 ..L.
 68 RIGHT_A_UARM
 69 0
 70 RIGHT_A_LARM
 71 1
 72 A_ARM_LOD
 73 .ML.
 74 RIGHT_A_SARM
 75 0
 76 RIGHT_A_HUB
 77 0
 78 RIGHT_A_BRAKE
 79 0
 80 RIGHT_A_SPRING
 81 0
 82 RIGHT_A_DAMPER
 83 0
 84 FRONT_RIGHT_WHEEL_RIM
 85 0
 86 FRONT_RIGHT_WHEEL_TIRE
 87 1
 88 WHEELS_LOD
 89 ..L.
 90 SWINGARM
 91 0
 92 SPROCKET
 93 0
 94 CHAIN
 95 0
 96 REAR_AXLE
 97 0
 98 REAR_BRAKE_DISC
 99 0
100 REAR_BRAKE_CALIPER
101 0
102 REAR_SPRING
103 0
104 REAR_DAMPER
105 0
106 REAR_LEFT_WHEEL_RIM
107 0
108 REAR_LEFT_WHEEL_TIRE
109 1
110 WHEELS_LOD
111 ..L.
112 REAR_RIGHT_WHEEL_RIM
113 0
114 REAR_RIGHT_WHEEL_TIRE
115 1
116 WHEELS_LOD
117 ..L.

while from PartsInventory.bin you can choose:

Code: Select all

  0 VER 1
  1 48
  2 FRAME
  3 5
  4 FRAME_01
  5 HM..
  6 FRAME_02
  7 HM..
  8 FRAME_03
  9 HM..
 10 FRAME_04
 11 HM..
 12 FRAME_99
 13 HML.
 14 FGUARD
 15 7
 16 FRAMEGUARD_01
 17 H...
 18 FRAMEGUARD_02
 19 H...
 20 FRAMEGUARD_03
 21 H...
 22 FRAMEGUARD_04
 23 H...
 24 FRAMEGUARD_05
 25 H...
 26 FRAMEGUARD_98
 27 HML.
 28 FRAMEGUARD_99
 29 HML.
 30 SKIDPLATE
 31 0
 32 BUMPER
 33 11
 34 BUMPER_01
 35 HMLP
 36 BUMPER_02
 37 HMLP
 38 BUMPER_03
 39 HMLP
 40 BUMPER_04
 41 HMLP
 42 BUMPER_05
 43 HMLP
 44 BUMPER_06
 45 HMLP
 46 BUMPER_07
 47 HMLP
 48 BUMPER_08
 49 HMLP
 50 BUMPER_09
 51 HMLP
 52 BUMPER_10
 53 HMLP
 54 BUMPER_99
 55 HML.
 56 BOOST_BOTTLE
 57 2
 58 BOOST_BOTTLE_01
 59 HM..
 60 BOOST_BOTTLE_02
 61 HM..
 62 ENGINE
 63 5
 64 ENGINE_01
 65 HM.P
 66 ENGINE_02
 67 HM.P
 68 ENGINE_03
 69 HM.P
 70 ENGINE_04
 71 HM.P
 72 ENGINE_05
 73 HM.P
 74 EXHAUST
 75 0
 76 FARING_BODY
 77 11
 78 FARING_01_PARTS_01
 79 HML.
 80 FARING_02_PARTS_01
 81 HML.
 82 FARING_03_PARTS_01
 83 HML.
 84 FARING_04_PARTS_01
 85 HML.
 86 FARING_05_PARTS_01
 87 HML.
 88 FARING_06_PARTS_01
 89 HML.
 90 FARING_07_PARTS_01
 91 HML.
 92 FARING_08_PARTS_01
 93 HML.
 94 FARING_09_PARTS_01
 95 HML.
 96 FARING_10_PARTS_01
 97 HML.
 98 FARING_99_PARTS_01
 99 HML.
100 FARING_MUDGUARD_FRONT_LEFT
101 55
102 FARING_01_PARTS_01
103 HML.
104 FARING_01_PARTS_02
105 HML.
106 FARING_01_PARTS_03
107 HML.
108 FARING_01_PARTS_04
109 HML.
110 FARING_01_PARTS_05
111 HML.
112 FARING_02_PARTS_01
113 HML.
114 FARING_02_PARTS_02
115 HML.
116 FARING_02_PARTS_03
117 HML.
118 FARING_02_PARTS_04
119 HML.
120 FARING_02_PARTS_05
121 HML.
122 FARING_03_PARTS_01
123 HML.
124 FARING_03_PARTS_02
125 HML.
126 FARING_03_PARTS_03
127 HMLP
128 FARING_03_PARTS_04
129 HML.
130 FARING_03_PARTS_05
131 HM..
132 FARING_04_PARTS_01
133 HML.
134 FARING_04_PARTS_02
135 HML.
136 FARING_04_PARTS_03
137 HML.
138 FARING_04_PARTS_04
139 HML.
140 FARING_04_PARTS_05
141 HML.
142 FARING_05_PARTS_01
143 HML.
144 FARING_05_PARTS_02
145 HML.
146 FARING_05_PARTS_03
147 HML.
148 FARING_05_PARTS_04
149 HML.
150 FARING_05_PARTS_05
151 HML.
152 FARING_06_PARTS_01
153 HML.
154 FARING_06_PARTS_02
155 HML.
156 FARING_06_PARTS_03
157 HMLP
158 FARING_06_PARTS_04
159 HML.
160 FARING_06_PARTS_05
161 HML.
162 FARING_07_PARTS_01
163 HML.
164 FARING_07_PARTS_02
165 HML.
166 FARING_07_PARTS_03
167 HML.
168 FARING_07_PARTS_04
169 HML.
170 FARING_07_PARTS_05
171 HML.
172 FARING_08_PARTS_01
173 HML.
174 FARING_08_PARTS_02
175 HML.
176 FARING_08_PARTS_03
177 HML.
178 FARING_08_PARTS_04
179 HML.
180 FARING_08_PARTS_05
181 HML.
182 FARING_09_PARTS_01
183 HML.
184 FARING_09_PARTS_02
185 HML.
186 FARING_09_PARTS_03
187 HML.
188 FARING_09_PARTS_04
189 HML.
190 FARING_09_PARTS_05
191 HML.
192 FARING_10_PARTS_01
193 HML.
194 FARING_10_PARTS_02
195 HML.
196 FARING_10_PARTS_03
197 HML.
198 FARING_10_PARTS_04
199 HML.
200 FARING_10_PARTS_05
201 HML.
202 FARING_99_PARTS_01
203 HML.
204 FARING_99_PARTS_02
205 HML.
206 FARING_99_PARTS_03
207 HML.
208 FARING_99_PARTS_04
209 HML.
210 FARING_99_PARTS_05
211 HML.
212 FARING_MUDGUARD_FRONT_RIGHT
213 55
214 FARING_01_PARTS_01
215 HML.
216 FARING_01_PARTS_02
217 HML.
218 FARING_01_PARTS_03
219 HML.
220 FARING_01_PARTS_04
221 HML.
222 FARING_01_PARTS_05
223 HML.
224 FARING_02_PARTS_01
225 HML.
226 FARING_02_PARTS_02
227 HML.
228 FARING_02_PARTS_03
229 HML.
230 FARING_02_PARTS_04
231 HML.
232 FARING_02_PARTS_05
233 HML.
234 FARING_03_PARTS_01
235 HML.
236 FARING_03_PARTS_02
237 HML.
238 FARING_03_PARTS_03
239 HMLP
240 FARING_03_PARTS_04
241 HML.
242 FARING_03_PARTS_05
243 HM..
244 FARING_04_PARTS_01
245 HML.
246 FARING_04_PARTS_02
247 HML.
248 FARING_04_PARTS_03
249 HML.
250 FARING_04_PARTS_04
251 HML.
252 FARING_04_PARTS_05
253 HML.
254 FARING_05_PARTS_01
255 HML.
256 FARING_05_PARTS_02
257 HML.
258 FARING_05_PARTS_03
259 HML.
260 FARING_05_PARTS_04
261 HML.
262 FARING_05_PARTS_05
263 HML.
264 FARING_06_PARTS_01
265 HML.
266 FARING_06_PARTS_02
267 HML.
268 FARING_06_PARTS_03
269 HMLP
270 FARING_06_PARTS_04
271 HML.
272 FARING_06_PARTS_05
273 HML.
274 FARING_07_PARTS_01
275 HML.
276 FARING_07_PARTS_02
277 HML.
278 FARING_07_PARTS_03
279 HML.
280 FARING_07_PARTS_04
281 HML.
282 FARING_07_PARTS_05
283 HML.
284 FARING_08_PARTS_01
285 HML.
286 FARING_08_PARTS_02
287 HML.
288 FARING_08_PARTS_03
289 HML.
290 FARING_08_PARTS_04
291 HML.
292 FARING_08_PARTS_05
293 HML.
294 FARING_09_PARTS_01
295 HML.
296 FARING_09_PARTS_02
297 HML.
298 FARING_09_PARTS_03
299 HML.
300 FARING_09_PARTS_04
301 HML.
302 FARING_09_PARTS_05
303 HML.
304 FARING_10_PARTS_01
305 HML.
306 FARING_10_PARTS_02
307 HML.
308 FARING_10_PARTS_03
309 HML.
310 FARING_10_PARTS_04
311 HML.
312 FARING_10_PARTS_05
313 HML.
314 FARING_99_PARTS_01
315 HML.
316 FARING_99_PARTS_02
317 HML.
318 FARING_99_PARTS_03
319 HML.
320 FARING_99_PARTS_04
321 HML.
322 FARING_99_PARTS_05
323 HML.
324 FARING_MUDGUARD_REAR
325 55
326 FARING_01_PARTS_01
327 HML.
328 FARING_01_PARTS_02
329 HML.
330 FARING_01_PARTS_03
331 HML.
332 FARING_01_PARTS_04
333 HML.
334 FARING_01_PARTS_05
335 HML.
336 FARING_02_PARTS_01
337 HML.
338 FARING_02_PARTS_02
339 HML.
340 FARING_02_PARTS_03
341 HML.
342 FARING_02_PARTS_04
343 HML.
344 FARING_02_PARTS_05
345 HML.
346 FARING_03_PARTS_01
347 HML.
348 FARING_03_PARTS_02
349 HML.
350 FARING_03_PARTS_03
351 HMLP
352 FARING_03_PARTS_04
353 HML.
354 FARING_03_PARTS_05
355 HML.
356 FARING_04_PARTS_01
357 HML.
358 FARING_04_PARTS_02
359 HML.
360 FARING_04_PARTS_03
361 HML.
362 FARING_04_PARTS_04
363 HML.
364 FARING_04_PARTS_05
365 HML.
366 FARING_05_PARTS_01
367 HML.
368 FARING_05_PARTS_02
369 HML.
370 FARING_05_PARTS_03
371 HML.
372 FARING_05_PARTS_04
373 HML.
374 FARING_05_PARTS_05
375 HML.
376 FARING_06_PARTS_01
...[Code]

[shakotay2]

A little bit tedious to collect all parts of a model (stopped it after 11, wheel and rim count as 2):
.

vehicle_a.png

[llama]

btw: please, don't create a post for every sentence. You can edit your posts...

Oh my bad I'll have it in mind next time. Thank you for the advice. I am new to the forums.

edit: I assume CommonInventory.bin contains the parts that are common for all vehicles:

Hmm it didn't occurred to me look in other files for the info. Last night I tried to find some info in the executable, but I could not debug it since it crashed IDA.

A little bit tedious to collect all parts of a model (

Wow! You got pretty far. I am trying to create a parser that parse all of them so I don't have to figure it out for every part but is becoming difficult.

If you dont mind me asking, how do you make hex2obj show you the model as you do in your screenshots?

[shakotay2]

I am trying to create a parser that parse all of them so I don't have to figure it out for every part

Cool.

but is becoming difficult.

Do it step by step. Feel free to ask - sometimes I can help...

if you dont mind me asking, how do you make hex2obj show you the model as you do in your screenshots?

It's a modified source of Szymon Rusinkiewicz's mesh_viewer. Afaics it's part of Trimesh2 now:
https://github.com/jrock08/Trimesh2

btw: these are the "common parts"; as you can see, axles are missing (and more):
.

Vehicle-common-parts.png

[llama]

I have been reading the disassembly and found the model loading bit. The downside is that most of it looks like calling functions dynamically as it every part of the model need a specific function or maybe the disassembler did something wrong. I am not an expert so I will have to come up with a pretty rough solution.

Yes, there are some parts that are common, mostly LODs for the far view like the LOD3 of the engine and handlebars.
The interesting parts are in the "Parts" folder.

It seems like the .model have material information, maybe also the textures itself(Edit: textures are more likely in the Vehicles.textures file) given that the correctly parsed files left a lot of bytes uncovered.

I'll keep updating my results

[shakotay2]

(Edit: textures are more likely in the Vehicles.textures file) given that the correctly parsed files left a lot of bytes uncovered.

Yes, from a quick glance there's 227 dds files contained:

Code: Select all

  0 TUBE_CHROME_SPEC [77d55485]
  1 PEGS_GENERIC [df2e3896]
  2 PEGS_GENERIC_SPEC [1d30781]
...
224 N_Grip_04_YELLOW [dbcc829f]
225 N_Grip_04_ORANGE [fab9cd0f]
226 N_Grip_04_GREEN [0]

(You can find those assumed hashes in brackets twice in vehicles.textures. Since the last one is zero I might be off by one line.)

First texture:
.

Pure_tex_1.jpg

[Durik256]

Pure model viewer


(open or drag&drop *.model/ *.obj)

[llama]

The pureviewer has a timeout on a license for an obfuscator which make it impossible to execute the viewer.