Click on each item of the table to enable or disable a handling flag. Below the table, you'll get a number which contains all the flags you have enabled.
-
-
-
-
SMOOTH_COMPRESN
-
REDUCED_MOD_MASS
-
-
-
-
-
NO_HANDBRAKE
-
STEER_REARWHEELS
-
HB_REARWHEEL_STEER
-
STEER_ALL_WHEELS
-
-
-
FREEWHEEL_NO_GAS
-
NO_REVERSE
-
-
-
-
-
CVT
-
ALT_EXT_WHEEL_BOUNDS_BEH
-
DONT_RAISE_BOUNDS_AT_SPEED
-
-
-
-
LESS_SNOW_SINK
-
TYRES_CAN_CLI
-
-
-
-
-
OFFROAD_ABILITY
-
OFFROAD_ABILITY2
-
HF_TYRES_RAISE_SIDE_IMPACT_THRESHOLD
-
-
-
-
ENABLE_LEAN
-
HEAVYARMOUR
-
-
ARMOURED
-
-
-
SELF_RIGHTING_IN_WATER
-
IMPROVED_RIGHTING_FORCE
-
-
-
-
-
-
Result
-
-
<strHandlingFlags>00000000<⁄strHandlingFlags>
-
-
Remember that some flags are can override each other. For example, STEER_REARWHEELS and STEER_ALL_WHEELS will not work together.
This tool aims to help beginners visualise and understand handling files,
+ by establishing itself as an intuitive interface between the user and the file.
+
+
+ You can start from scratch, and move sliders around right away. Just press the Save button at the bottom
+ to download the an edited file. Do remember to open it and edit the handling id.
+
+
+ Also, you can load a custom handling file below.
+
This set of values represent the vehicle body shape, and mostly
+ affect top speed behavior.
+
+
+
+
+
Downforce
+
fDownforceModifier
+
+
+ 0
+
+ 500
+
+
+
+
+
This car will generate dGs of additional grip at 60mph.
+
+
This car will generate dGs of additional grip at 100kph.
+
+
+
Downforce is a way to gain grip at speed, and can be increased by Spoilers.
+
In V, downforce is represented as two behaviors - an actual down force pressing
+ the car down, and a separate grip gain based on fDownforceModifier and a
+ ruleset.
The resulting value is added to the wheel grip, multiply by the
+ four wheels you'd usually have.
+
+
The value of fDownforceModifier can define one of three rulesets for the
+ Downforce calculations:
+
+ Dynamic: Between 1.0 and 100. The vehicle gains grip at a variable
+ rate from 0 when static to 0.035 * fDownforceModifier at 90% of its top
+ speed.
+
+
+ Static (high): 1.0 or less. The vehicle gains a flat grip increase of
+ 0.035, 0.07 if using a tuning Spoiler.
+
+
+ Static (low): 100 or more. The vehicle gains a flat grip increase of
+ 0.0105, 0.01313 if using a spoiler.
+
+
+
Active Aero vehicles ignore this value, setting a 0.035 gain when the spoiler is
+ raised, up to 0.07 when it pitches down to aid cornering or braking.
+
+
There is a fourth ruleset, used on the Open Wheel vehicles, which requires
+ advanced flags and defines specific rates per Spoiler/Bumper. Investigation is
+ still ongoing.
+
+
+
+
+
+
Air Resistance
+
fInitialDragCoeff
+
+
+
+ 0
+
+ 20
+
+
+
The vehicle's body air resistance.
+
+
+ Higher resistance means an eariler perceived loss of
+ power at higher speed, resulting in a lower top speed, as the engine cannot
+ overpower this force. Lower air resistance allows the vehicle to travel faster
+ on the same power.
+
+
+
Working as a multiplier, this value defines how much will air drag scale with
+ speed. The higher the multiplier, the more powerful air resistance will be at
+ high speeds.
+
+
+
The tug of war between Torque and Drag is not very strong. Your vehicle can
+ easily go over this speed on downhill or under performance upgrades, though
+ not very far.
+
Drag works against Torque. Both are measured in G-Forces, the speed at which
+ they even out is the vehicle's top speed.
+
Unlike Downforce, drag is omnidirectional.
+
+
+
+
+
+
+
+
+
+
+
+
+
Chassis
+
This set of values represent the vehicle body itself, and will play
+ a big role on how the vehicle behaves overall.
+
+
+
+
+
+
Mass
+
fMass
+
+ 0
+
+ 15000
+
+
+
+
+ Your car will weight 1000kg.
+
+
+
Measured in Kg, mass is only responsible for the interaction between entities.
+ Let's
+ say its the vehicle's pushing force.
+
Mass is not at all related to physical
+ agility and does not affect the car's physics at all. Only affects how well the
+ car fares when colliding
+ with other entities. Vehicles, Lamp posts, rocks, etc.
+
+
+
+
+
+
+
+
+
+
Center of Mass
+
vecCentreOfMassOffset
+
+
+
+
+ -2
+
+ 2
+
+
+
+
+
+
+ -2
+
+ 2
+
+
+
+
+
+
+ -2
+
+ 2
+
+
+
+
+
+
+
+
Rotational Inertia
+
vecInertiaMultiplier
+
+
+
+
+ -2
+
+ 2
+
+
+
+
+
+
+ -2
+
+ 2
+
+
+
+
+
+
+ -2
+
+ 2
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Engine
+
The moving force of your vehicle, this set of values govern details
+ about how different bits of the engine will behave.
+ Works in close relationswhip with Transmission.
+
+
+
+
+
+
+
Power / Acceleration
+
fInitialDriveForce
+
+
+
+ 0
+
+ 0.5
+
+
+
+
Also called engine power, it dictates the target acceleration the engine is aiming
+ for, measured in
+ G-Forces. Wheel grip may not be able to cope with it, however.
+
+
Gearing modulates this value in ratios to translate it into torque, which is the
+ final acceleration the vehicle will experience.
+
+
Electric vehicles bypass this entirely, starting with x5 torque whith drains to x1 at
+ the top speed.
+
+
+
+
+
+
+
Drive inertia
+
fDriveInertia
+
+
+
+ 0
+
+ 3
+
+
+
The vehicle will go from idle to redline in s assuming full throttle.
+
+
How responsive the engine revs will be to throttle control. It is measured in Higher
+ values will result
+ in faster RPM acceleration and deceleration, while lower values will result in more
+ sluggish RPMs.
+
+
+ Works similar to how a flywheel acts in real-life vehicles, storing drive momentum
+ from the engine. A lighter flywheel can react faster to engine RPM changes with it's
+ lack of weight, while heavier flywheels have higher momentum force which takes more
+ engine power to influence.
+
+
+
+
+
+
+
+
+
Top Speed
+
fInitialDriveMaxFlatVel
+
+
+ 0
+
+ 200
+
+
+
+
+
+
The vehicle's last gear will top at:
+
+
40 mph.
+
+ 64.37 kph.
+
+
+
+
+
+
Maximum engine top speed. Over this speed, the engine power will degrade greatly.
+
Keep in mind that gearing will stretch over this 'length'.
+
+
+
+
+
+
+
+
+
Transmission
+
Together with the Engine, the transmission settings define the power
+ output of your vehicle.
+
+
+
+
+
+
NΒΊ of Gears
+
nInitialDriveGears
+
+ 0
+
+ 6
+
+
+
Number of gears at stock.
+
+
As gears modulate the fInitialDriveForce up until
+ fInitialDriveMaxFlatVel, keepin a reasonably number of gears for your top
+ speed is reccomended.
+
+
+
Remember Transmission upgrades add one gear total.
+
+
+
+
+
Shift times
+
fClutchChangeRateScaleUpShift
+
+ 0
+
+ 10
+
+
+
The vehicle will take s to shift from gear to gear.
+
+
+
fClutchChangeRateScaleDownShift
+
+ 0
+
+ 3
+
+
+
+
+
+
+
Power Bias
+
fDriveBiasFront
+
+
+ 0
+
+ 1
+
+
+
Defines how the power from fInitialDriveForce is distributed between the
+ axles.
+
0.0 implies a fully RWD setup, with will only deliver power to the rear wheels.
+
+
+
+
+
+
+
+
+
+
+
Brakes
+
Brakes are one of the main defining factors of the performance of your
+ vehicle. This value should complement both the vehicle's power and traction, so as to keep a
+ coherent balance.
+ Unless you have reasons for it not to.
+
+
+
+
+
+
+
Brake Strength
+
fBrakeForce
+
+ 0
+
+ 1
+
+
+
Target deceleration is 60-0 mph in ~s.
+
How many Gs of deceleration are applied to each wheel.
+
+
+
+ fTractionCurveMax and fBrakeForce are closely related. Assuming
+ perfect balance, a fourth of brake is enough to make each wheel lockup.
+
+
+
+
+
+
+
Brake Bias
+
fBrakeBiasFront
+
+ 0
+
+ 1
+
+
+
+
+
Distribution of the brake strength between the axles.
+
+ Usually, the best balance is between 0.55 and 0.7 for best braking capabilities, as
+ it accounts for the weight transfer that ensues when braking.
Vehicles with
+ more body lean typically need more balance to the front.
+
+
+
+
+
+
Handbrake Strength
+
fHandBrakeForce
+
+
+ 0
+
+ 1
+
+
+
Similar to fBrakeForce, but is only applied to the rear axle(s).
+
+
+
+
+
+
+
+
Traction
+
Traction is the main limiter of power and braking ability, and has to be
+ able to handle both; otherwise your vehicle may suffer wheelspin/wheel lock.
+ However, these can also be treated as features and not defects, being part of the vehicle's
+ personality.
+
+
+
+
+
+
Tire Grip
+
fTractionCurveMax
+
+ 0
+
+ 3
+
+
+
+
fTractionCurveMin
+
+ 0
+
+ 3
+
+
+
Maximum and minimum G's the vehicle's wheels are able to pull.
+
+
+ In V, grip is represented as how much the vehicle's tires are able to accelerate or
+ decelerate the car's body, as a whole.
+
+
+ These values are constantly changed around by context, like suspension pressure,
+ surface the tire is driving on, etcetera.
+
+
+
+
+
+
Traction Curve
+
fTractionCurveLateral
+
+ 10
+
+ 30
+
+
+
Slide angle at which the car will enjoy the best grip available.
+
+
+ The vehicle will tend to stay below half of this value.
+
+
+
+ It is reccomended to keep it at default 22.5 on most vehicles, though Sports and
+ Supercars can have it as low as 18ΒΊ if you so desire, making them stay more
+ straight. Over 24ΒΊ is not reccomended save for the slidiest cars, like old muscles.
+
+
+
+
+
+
Tire Grip Bias
+
fTractionBiasFront
+
+ 0
+
+ 1
+
+
+
Grip balance:
+
+
+ This value perfectly describes situations where the front and rear axles have
+ different kinds of wheels, be it the compounds are different, or the tire width is
+ different.
Very useful for dragsters and high performance cars who come with
+ changes like these.
+
+
+
+
+
+
+
+
Offroad Traction Loss
+
fTractionLossMult
+
+ 0
+
+ 1.5
+
+
+
How exaggerated the traction loss is for this vehicle.
+
+ A value of 1.0 makes the car lose grip on each surface as expected by the game.
+ Below 1.0 you lose less grip than normal, over 1.0 you lose more grip than normal.
+
High end cars can have up to 1.5 or so before the traction loss of certain
+ surfaces ends up making the car have negative grip.
+
+
+
+
+
+
Low Speed Burnout Mult
+
fLowSpeedTractionLossMult
+
+ 0
+
+ 2
+
+
+
How exaggerated the fake burnout griploss is for this vehicle.
+
+
+
+
+
Max Steer Angle
+
fSteeringLock
+
+ 0
+
+ 50
+
+
+
Maximum steering angle for the vehicle.
+
+
+
+
+
+
+
+
Suspension
+
Stiffer, softer, loose, tight. This section governs how your car
+ floats above its wheels.
+
+
+
+
+
Spring Strength
+
fSuspensionForce
+
+ 0
+
+ 5
+
+
+
Spring strength.
+
+
+
+
+
Spring Dampen Strength
+
fSuspensionCompDamp
+
+ 0
+
+ 3
+
+
+
+
fSuspensionReboundDamp
+
+ 0
+
+ 3
+
+
+
How strongly the spring strength is dampened when compressing or decompressing.
+
+
+
+
+
Compression/Decompression Limits
+
fSuspensionUpperLimit
+
+ 0
+
+ 1
+
+
+
+
fSuspensionLowerLimit
+
+ -1
+
+ 0
+
+
+
Compression upper and lower limits, in meters. Yeah, use centimeters.
+
+
+
+
+
+
+
Suspension Raise
+
fSuspensionRaise
+
+ 0
+
+ 1
+
+
+
In meters, this raises or lowers the natural stance of the vehicle.
+
+
+
+
+
Strength Bias
+
fSuspensionBiasFront
+
+ 0
+
+ 1
+
+
+
Spring strength distribution between the axles of the vehicle.
+
+
+
+
+
+
+
+
Anti-roll Bars
+
The main goal of the Anti-roll Bars is to prevent the car from leaning
+ too much when taking a corner.
+ Do keep in mind that the wheels the cars leans into, receive more grip from the pressure, while
+ the wheels on the other side lose traction.
+
+
+
+
+
Antiroll Strength
+
fAntiRollBarForce
+
+ 0
+
+ 2
+
+
+
How strongly the antiroll bars try to keep the vehicle from leaning.
+
+
+
+
+
Strength Bias
+
fAntiRollBarBiasFront
+
+ 0
+
+ 1
+
+
+
Distribution of the antiroll bar strength between the car axles.
+
+
+
+
+
+
+
+
Rollcentre - Front
+
fRollCentreHeightFront
+
+ 0
+
+ 1
+
+
+
Relative to the model bottom, defines where the pivot point is. This is used for
+ leaning.
+
+
+
+
+
Rollcentre - Back
+
fRollCentreHeightRear
+
+ 0
+
+ 1
+
+
+
Relative to the model bottom, defines where the pivot point is. This is used for
+ leaning.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
FLAGS
+
+
+
+
+
+
+
Handling flags
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Don't edit the values in here. This area serves only
+ as a preview of the file.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Metrics
+
+
+ This editor makes an effort of translating some handling items to real world
+ measurements, depicted in red on them.
+ For transparency and ease of fact-checking, this section documents and details the math
+ used to get the Ingame metrics.
+
+
+
I then just use standard conversions to get the mph
+ equivalents for the editor section.
+
+ Speed is measured in m/s.
+
+
+
+
+
+
+
+
Handling item
+
File metric
+
Ingame metric
+
Math
+
+
+
+
+
fInitialDriveForce
+
Acceleration (G-Forces)
+
Acceleration (G-Forces)
+
fInitialDriveForce * Ratio of Current Gear
+
+
+
fDownforceModifier
+
Multiplier
+
Grip gain (G-Forces)
+
(0 - 0.035) > (0 - 90% of fInitialDriveMaxFlatVel) *
+ fDownforceModifier * NΒΊ of Wheels
+
+
+
fInitialDragCoeff
+
Multiplier
+
Air Resistance (G-Forces)
+
(Speed * (fInitialDragCoeff * 0.0001))^2
+
+
+
fDriveInertia
+
Multiplier
+
Seconds
+
1 / fDriveInertia
+
+
+
fInitialDriveMaxFlatVel
+
Speed
+
Kilometers per hour
+
fInitialDriveMaxFlatVel / 0.75
+
+
+
fClutchChangeRateScaleUpShift
+
Multiplier
+
Seconds
+
1 / fClutchChangeRateScaleUpShift
+
+
+
fBrakeForce
+
Decceleration (G-Forces) per wheel
+
Decceleration (G-Forces) per wheel
+
Speed / (fBrakeForce * Number of wheels)
+
+
+
+ Most of the new math has been figured out using SHVDN to script the math ingame, drawing
+ helpful data like torque per wheel from the game memory itself. All has been
+ confirmed ingame, in Singleplayer - feel free to do your own testing.
+
+
+
+
+
+
+
+
+
+
+
+
+
Mass comparer
+
+
+ This simple tool displays the main performance values of any given handlings you feed
+ it, for ease of comparison. It is not related to the rest of the webpage and will not
+ edit the original loaded file.
+
+
+
+
+
+
+
+
+ You can
+ also drop multiple files from OpenIV.
+
+
+
+
+
+
+
+
+
+
+
+
+ Click on the table headers to sort by that row.
+
+
+
+
+
+
+
+
+
+
Comparisons
+
+
+
You can add a comparison item for in the graphs by uploading another handling file here.
+
+
+
+
+
+
You can drop handling.meta files from OpenIV directly.