Changes

.X file is uncompressed 3D stage model with texture embedeed. The file contains basic unused info (currently unknown, probably for editor?not used by FF8 engine), camera data, movement, translations and geometry data.  Battle stages '''DOES NOT''' contain pointers to next sections. All pointers are '''HARDCODED''' in FF8.EXE. [[FF8/BattleStage/Pointers|Click me for battle stage pointer list]]

| Info/ScriptPlayStation MIPS assembly

| Currently unknown. Probably header + info, that is not needed Used only in game itself. Can be null'ied and nothing will happen ingame. PS version; skipped in PC

| 02 00 08 00 20 00 (usually 0x5d4/8)

| GeometryModel section| 01 06 00 00 01 00 (See geometry section info)

| 01 10 00 00 00 09 (Always)| Contains one .TIM texture , 8 BPP|} == How is this file handled by the engine? == FF8 loads specific file and reads it from hardcoded (written in FF8 code) position (or reads MIPS PlayStation assembly that contains battle stage load code). This hardcoded position points to camera data (in PC). Camera data has size uint16, which is calculated and relative jump is made. Just after camera, a typical section based file handling is made.  {| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint32| Number of sections|-| 4| uint32| Objects group #1|-| 8| uint32| Objects group #2|-| 12| uint32| Objects group #3|-| 16| uint32| Objects group #4|-| 20| uint32| Texture [unused in code]|-| 24| uint32| Texture|-| 28| uint32| Relative to EOF|} ====Objects Group===={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint32| Number of sections|-| 4| uint32| Pointer to Settings #1|-| 8| uint32| Pointer to ObjectsList|-| 12| uint32| Pointer to Settings #2|-| 16| uint32| Relative to end_of_group

== Info/Script ===Objects List====={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint32| Number of objects|-| Num_of_obj*4| uint32| Relative pointer to segment (one .obj file) [01 00 01 00]|}

Currently unknown=====Settings 1====={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint16| Unknown, fixed 2?|-| 2| sint16 (probably, or uint16)| Scale (01 is the smallest)|-| 4| 4 bytes| PADDING|-| 8| 4 bytes| Nothing?|-| 12| 4 bytes| Nothing?|-| 16| 2 bytes| if not FF FF, takes up to ~1400 then model vanishes|-| 18| sint16| X or Z Axis rot origin (Translation)|-| 20| 44 bytes from start. Unused | Left null for storing some engine data AFTER loaded in-game|-| 64| 2 bytes| if not FF FF or 00 00, then model vanishes|-| 66| 2 bytes| Nothing?|-| 68| . Can be ..up to end| Left null'ied and nothing happen.for storing some engine data AFTER loaded in-game|}

This header accesses opcodes related might look difficult, but it's like multi-pointer file that starts at different location given by executable. See list at the beginning of this wiki to Direct3D "shadow" stuffsee which stages camera starts at which position (where FF8. Is highly connected exe really starts to AF3DN.p read file as BattleStage) [FF8 stores whole file, even with useless data before camera]OpCode that accesses If this still makes trouble, see this portion of data is "unsigned divide by 2".video: TODO

Starts at ~0x5d4(see How the engine handles this file?). [.text:00509820] {| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204, operates 204,204)" | Description|-| 0| uInt16| Pointers count. Fixed (02 00) '''[Unused in code]'''|-| 2| uInt16| Relative jump to CameraSetting. Should be (08 00)|-| 4| uInt16| Relative jump to CameraAnimationCollection. Should be (20 00)|-| 6| uInt16| Camera data size (starting from 0) '''[unused in code]'''|-| 8| 24 bytes| Camera Settings|-| 32| ?? bytes| Camera Animation Collection|} ====Camera Setting==== {| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| char (based on disassembly)| CameraAnimMode?|-| 1| byte?| StopEnemyBeforeAnim?|-| 2| Bitfield? (1B)| UHM?|-| 3| ???| DefaultEndofCameraPosition_Zoom?|-| 4 | ???| ???|} ====Camera Animations Collection====  {| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint16| NumOfSets|-| 2 *(Set index)| uint16| Relative pointer to camera Animation Set|-| 2 *(Set index)+ 2| uint16| Camera EOF|-| CameraAnimationSetPointer| CameraAnimationSet| CameraAnimationSet|} =====CameraAnimationSet=====Seems to be 8 pointers in each set.{| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-|0|ushort|AnimPointer*2 |-|AnimPointer|Varies 144-146-148 bytes usually|CameraAnimation|} == Camera Animation (WIP) == All this is based on best effort knowledge from reversing by Maki. I'm just trying to understand it.=== Control Word ==={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint16_t (bit varies)| Main controller. If 0xFFFFU END|}==== FOV ==== Control Word & 0b0000'0000'1100'0000U===== 1 Default ====={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| None| None| Start = 0x200|-| None| None| End = 0x200|}===== 2 Same ====={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint16_t| Start|-| 2| uint16_t| Padding|-| None| None| End = Start|}===== 2 Different ====={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint16_t| Start|-| 2| uint16_t| Padding|-| 4| uint16_t| End|} ==== ROLL ==== Control Word & 0b0000'0011'0000'0000U===== 0 Unknown ===== TODO===== 1 Default ====={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| None| None| Start = 0x000|-| None| None| End = 0x000|}===== 2 Same ====={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint16_t| Start|-| None| None| End = Start|}===== 2 Different ====={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| uint16_t| Start|-| 2| uint16_t| End|} ==== LAYOUT ==== Control Word & 0b0000'0000'0000'0001U===== 0 Default ===== You'll loop through the data till the first value is less than 0. pushing back to a variable length container.{| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description|-| 0| int16_t| if < 0 break; could be related to time of frame.|-| 2| 16 bytes translation | Animation Frame|} ===== 1 Other ===== TODO===Time=== Time is calculated from number of X Y frames. You basically set starting position World+lookat and Z axisending position, then mark number of frames to interpolate between them. Due Every frame is one draw call and it costs 16. Starting time needs to be equal or higher for next animation frame to orthogenical view also operates camera in screen view making be read; If next frame==0xFFFF then it possible to move camera from 2D generated screen's all done. TODO=== Animation Frame ==={| border="1" cellspacing="1" cellpadding="3" align="center" style="border: 1px solid black; border-collapse: collapse;"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background: One thing rgb(204,204,204)" | Description|-| 0| uint16_t| is missingframe durations shot|-| 2| Vertice<uint16_t> (x,y,z)| World|-| 8| uint16_t| is frame ending shot|-| 10| Vertice<uint16_t> (x,y,z)| Look At|} =====Dependency=====  CAMERA: - how does the camera start Camera Settings -Camera Animation Collection (even three collections in a0stg006.x and structure of up to 7 in a0stg101.x!) | | -Camera animation Set (Always 8 camera key-movementanimations, may be empty (0xFFFF); look for example to a0stg127. Global parameters x collectionId==1; there are 8 animations, but 7 of camera translations them are known0xFFFF (pointers increase by 2)) | | - Camera animation  =====Example===== a0stg006.x:<br>0x5d8 -> 02 00 08 00 20 00 # Get EOF-> *(0x5d8 + 8) -> 32# Jump to EOF -> 0x5d8 + 32 = 0x5F8 (This is now Camera Animation Collection)# Get pointer to correct anim collection. In this case we will use AnimCollectionID == 0, so: *(0x5F8 + 0*2 + 2) -> 0x0c# Jump to Anim collection data: 0x5F8 + 0x0c = 0x604 (This is now Camera Animation Set)# Jump to Camera animation by cameraAnimSetID, let's take for example cameraAnimSetID == 7, so: *(0x604 + 7*2) -> 0x25E. Now carefully, jump by multiplying it by 2! ## 0x604 + (0x25E * 2) = 0xAC0 Therefore: a0stg006.x Camera animation 7 in camera collection 0 is at 0xAC0

| (AbsolutePosition MOD 4) + 24

string StrByte = InputBytes[TexturePage_index].ToString("X2"); //Gets TPage byte as HEX text StrByte = "0" + StrByte.Substring(1); // Deletes the first char/ 4 bits Byte TPage = Byte.Parse(StrByte); // Parses result as new byte int TPageINT = TPage * 128; //For 8 -bit TIM's, the texture page : 0xB2 byte is : 2*128 sized= 256

ExampleFor 4-bit TIM: 0xB2 byte is:2*128 256 = 256512

=== TIM Texture width/height resolving === //Updated - 19.07.2015 by MaKiPL Byte[] Stage = File.ReadAllBytes(@"PATH TO .X stage file"); //Load file to memory Byte[] TIMtexture = { 0x10, 0x00, 0x00, 0x00, 0x09 }; //Initialize 8BPP header int TIMoffset = ByteSearch(Stage, TIMtexture, 0); //Search Each time you half the number of bits you double the amount of data you can store in Stage for TIM header int TIMoffsetCLUTetc = TIM + 18; // Logic pass UInt16 CLUTsize = BitConverterthe same space.ToUInt16(Stage, TIMoffsetCLUTetc); //GET CLUT size to UInt16 TIMoffsetCLUTetc += 2 + (CLUTsize * 512) + 8; // Logic pass - pass CLUT offset, to get to sensitive data UInt16 szerU = BitConverterSo the calculated Texture Page is different.ToUInt16(Stage, TIMoffsetCLUTetc); //Get raw UInt16 value of width from texture data UInt16 wysoU = BitConverter.ToUInt16(Stage, TIMoffsetCLUTetc + 2); //Get raw UInt16 height value from texture data (real) int width = szerU * 2; //Calculate real texture width (For 8BPP = width*2)

'''1.====Quad wing order:'''====

'''2.====Quad triangulation face order'''====

'''3.====Triangles VT order:'''====

====Example:====