File Formats - Revision history

Bokujishin: /* SET */

2026-04-21T05:32:57Z

SET

Flame CZE at 20:47, 17 February 2026

2026-02-17T20:47:52Z

Bokujishin at 09:37, 16 January 2026

2026-01-16T09:37:20Z

Show changes

Flame CZE: remove page from guides

2025-12-31T16:13:11Z

remove page from guides

Flame CZE: add RAF, SPR, MPR, CAR_info.bin

2025-06-06T14:53:43Z

add RAF, SPR, MPR, CAR_info.bin

Show changes

Bokujishin: /* PTH */

2025-02-12T15:52:58Z

PTH

Bokujishin: /* SET */

2025-02-12T15:50:42Z

SET

Kristofferandersen: /* TXT */

2025-01-17T09:31:51Z

TXT

Kristofferandersen: /* TXT */

2025-01-17T09:18:55Z

TXT

Racon: /* LYT */

2024-10-15T11:39:27Z

LYT

@@ Line 198: / Line 198: @@
 	byte	1	Rear Caster (i.e. always zero)
 	byte	1	Rear Tyre Type (0 through 7 is R1 through Knobbly, in order of grip)
-	byte	1	0
+	byte	1	Rear Tyre Warmer Temperature
 	byte 	1	Rear Left Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
 	byte 	1	Rear Right Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
@@ Line 219: / Line 219: @@
 	byte	1	Front Caster (need to divide by ten)
 	byte	1	Front Tyre Type (0 through 7 is R1 through Knobbly, in order of grip)
-	byte	1	0
+	byte	1	Front Tyre Warmer Temperature
 	byte	1	Front Left Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
 	byte	1	Front Right Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)

@@ Line 1,459: / Line 1,459: @@
 </pre>
-[[Category:Programming]]
+[[Category:LFS programming]]
 <!-- links to other languages -->
 [[de:Dateiformate]]

←Older revision		Revision as of 16:13, 31 December 2025
Line 1,143:		Line 1,143:
	0		0
	0</pre>		0</pre>
−
−	~~{{Guides}}~~

	[[Category:Programming]]		[[Category:Programming]]

@@ Line 21: / Line 21: @@
 == PTH ==
 Path nodes are a series of points with direction and width that describe the track that you drive along. LFS uses it to watch your progress along the track, decides if you are driving in reverse. They provide the data for the echoes and the lightmaps, hold information about which objects you can see from that point, define the left and right boundaries for the AI drivers and are also used in yellow and blue flag systems, the position list, timing and some other things. Their length is not constant but there is approximately 0.2 seconds of time between passing one node and the next, when you are driving at a reasonable speed.
 == TXT ==

@@ Line 31: / Line 31: @@
 == SET ==
-Thanks to [[user:colcob|colcob]] for originally working this format out for v0.3H ([http://forum.rscnet.org/showthread.php?t=213190]), [[user:Bob Smith|Bob Smith]] for updating it for v0.5P([http://www.lfsforum.net/showthread.php?t=14477]), [[user:Woz|Woz]] for updating the bit field values for passengers, and back to [[user:Bob Smith|Bob Smith]] for updating it for v0.5X/Y.
+Thanks to [[user:colcob|colcob]] for originally working this format out for v0.3H ([http://forum.rscnet.org/showthread.php?t=213190]), [[user:Bob Smith|Bob Smith]] for updating it for v0.5P([http://www.lfsforum.net/showthread.php?t=14477]), [[user:Woz|Woz]] for updating the bit field values for passengers, and back to [[user:Bob Smith|Bob Smith]] for updating it for v0.5X/Y. The format was updated again following v0.6V.
 <pre>TYPES :
@@ Line 47: / Line 47: @@
 	char	6	Description (always SRSETT)
 	byte	1	0
-	byte	1	LFS Internal Version (was 250 for ages, now 251) [ignore this number]
+	byte	1	LFS Internal Version (was 250 for ages, then 251, currently 252) [ignore this number]
 	byte	1	File format version (currently 2) [check this number]
 	byte	3	0
@@ Line 70: / Line 70: @@
 	byte	1	0
 	byte	1	Centre Diff Torque Split
-	word	1	Gear Ratio 7 (0 to 65536 = 0.5 to 7.5)
+	word	1	Gear Ratio 7 (0 to 65534 = 0.5 to 7.5)
-	word	1	Gear Ratio Final (0 to 65536 = 0.5 to 7.5)
+	word	1	Gear Ratio Final (0 to 65534 = 0.5 to 7.5)
-	word	1	Gear Ratio 1 (0 to 65536 = 0.5 to 7.5)
+	word	1	Gear Ratio 1 (0 to 65534 = 0.5 to 7.5)
-	word	1	Gear Ratio 2 (0 to 65536 = 0.5 to 7.5)
+	word	1	Gear Ratio 2 (0 to 65534 = 0.5 to 7.5)
-	word	1	Gear Ratio 3 (0 to 65536 = 0.5 to 7.5)
+	word	1	Gear Ratio 3 (0 to 65534 = 0.5 to 7.5)
-	word	1	Gear Ratio 4 (0 to 65536 = 0.5 to 7.5)
+	word	1	Gear Ratio 4 (0 to 65534 = 0.5 to 7.5)
-	word	1	Gear Ratio 5 (0 to 65536 = 0.5 to 7.5)
+	word	1	Gear Ratio 5 (0 to 65534 = 0.5 to 7.5)
-	word	1	Gear Ratio 6 (0 to 65536 = 0.5 to 7.5)
+	word	1	Gear Ratio 6 (0 to 65534 = 0.5 to 7.5)
 	byte	1	Passenger (4 2bit fields). Passengers are located in the byte
                          at the following locations
@@ Line 100: / Line 100: @@
 	float	1	Rear Rebound Damping (N/mm)
 	float	1	Rear Anti Roll Bar Stiffness (N/mm)
-	byte	4	0
+	float	1	Handbrake Strength (N.m)
 	byte	1	Rear Toe (0=-0.9deg, 9=0deg, 18=0.9deg)
 	byte	1	Rear Caster (i.e. always zero)
 	byte	1	Rear Tyre Type (0 through 7 is R1 through Knobbly, in order of grip)
 	byte	1	0
-	byte 	1	LR Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
+	byte 	1	Rear Left Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
-	byte 	1	RR Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
+	byte 	1	Rear Right Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
-	byte	1	0
+	byte	1	Rear Tyre Size (when using ALTERNATE configuration on GTR cars, 0 through 5 to 9 depending on the car)
 	byte	1	Rear Diff Clutch Pack Pre-load (multiply by ten)
 	byte	1	Rear Diff Type (0=Open, 1=Locked, 2=Viscous, 3=Clutch Pack)
@@ Line 113: / Line 113: @@
 	byte	1	Rear Power Locking
 	byte	1	Rear Coast Locking
-	word	1	LR Tyre Pressure (kPa)
+	word	1	Rear Left Tyre Pressure (kPa)
-	word	1	RR Tyre Pressure (kPa)
+	word	1	Rear Right Tyre Pressure (kPa)
 	float	1	Front Ride Height (NOT spring motion range)
@@ Line 126: / Line 126: @@
 	byte	1	Front Tyre Type (0 through 7 is R1 through Knobbly, in order of grip)
 	byte	1	0
-	byte	1	LF Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
+	byte	1	Front Left Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
-	byte	1	RF Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
+	byte	1	Front Right Camber Adjust ( 45=0.0deg, 0=-4.5deg, 90=4.5deg)
-	byte	1	0
+	byte	1	Front Tyre Size (when using ALTERNATE configuration on GTR cars, 0 through 5 to 9 depending on the car)
 	byte	1	Front Diff Clutch Pack Pre-load (multiply by ten)
 	byte	1	Front Diff Type (0=Open, 1=Locked, 2=Viscous, 3=Clutch Pack)
@@ Line 134: / Line 134: @@
 	byte	1	Front Power Locking
 	byte	1	Front Coast Locking
-	word	1	LF TyrePressure (kPa)
+	word	1	Front Left TyrePressure (kPa)
-	word	1	RF TyrePressure (kPa)</pre>
+	word	1	Front Right TyrePressure (kPa)</pre>
 == LYT ==

@@ Line 24: / Line 24: @@
 == TXT ==
 Language Files, they are used as language packs to translate LFS to a selected list of languages.
 Thanks to Eold, we have a translation utility program which makes it easier to make language packs. See the enclosed README.txt for more information.<br>

@@ Line 156: / Line 156: @@
      char    0       LFSLYT              : do not read file if no match
      byte    6       version             : do not read file if > 0
-     byte    7       revision            : do not read file if > 251
+     byte    7       revision            : do not read file if > 252
      word    8       num added objects   : number of OBJECT BLOCKS
      byte    10      laps                : number
-     byte    11      flags               : 3 in new files  - see NOTE4
+     byte    11      flags               : see NOTE4
 ......OBJECT BLOCKS
@@ Line 176: / Line 176: @@
 -------
 How to distinguish between physical objects and control objects, like
-start positions, checkpoints, finish line and marshall circles.
+start positions, checkpoints, finish line and marshal circles.
 if (Index >= 192) // either a circle or an unknown object
@@ Line 264: / Line 264: @@
 NOTE4 :
 -------
 If the file is saved in the most recent format, the two lowest bits
@@ Line 271: / Line 271: @@
 bit 0 : the file does not need correction for the Blackwood scaling
 bit 1 : the file does not need conversion for the new object indices
 Some very old layouts may not have bit 0 set.
 Layouts saved up to 0.5Z34 will not have bit 1 set.