So, I know rf is a bit irreleavent now, but I thought I'd release this anyways. Just been updating it on facebook pages the last 5 years. Last I updated rd looks to be about 2012 LMAO. Anyways, i left off at version 3.1... This if it werent a complete do over so many times over would have been version like 11 or 12 by now haha. They've come a LONG ways and if you fix the cars inertia's as I describe you will find they make this game more accurate than any other game every made. They behave perfectly. Obviously you need your suspension geometry and other hdv values accurate to accurately replicate the car you put them on, but just having the intertia correct for the mass and car type you will be amazed.
Here's a video of me driving a car that has my full physics set applied to it I have also uploaded it on here for you to download, it's called Noisy Tribes REALFactor, on the tail of the dragon:
To install my tire physics to an existing mod please open the tires folder within the REAL Phyiscs folder and select the tire size you want for that car and highlight it copy. Then open the mods vehicle folder that the car you want to use them on is in and paste them. Next, Place this code string in the selected cars upgrade.ini file and replace [tire size of your choice] with the actual size (Ex: 205-50-15):
UpgradeType="Tires"
{
UpgradeLevel="Mods Original Tires"
{
}
UpgradeLevel="REAL Tires"
{
Description="[tire size of your choice] tires in real tire physics simulation by RSmithDRIFT"
Price=-1
HDV=[GENERAL]
HDV=tirebrand=[Tire size of your choice].tbc
HDV=
}
}
If the car already has a tire upgrade section you shouldnt use the above code. You need to add this code to the pre-existing tire upgrade code, again replacing the [tire size of your choice] part:
UpgradeLevel="REAL Tires"
{
Description="[tire size of your choice] tires in real tire physics simulation by RSmithDrift"
Price=-1
HDV=[GENERAL]
HDV=tirebrand=[Tire size of your choice].tbc
HDV=
}
To fix the intertia, open the cars .hdv file and find this line and follow the directions described here.
Inertia=(2929, 3151, 549) // (Pitch, Yaw, Roll) all inertia except fuel. A car is basically a rectangle. I'm giong to make this simple otherwise it can be overwhelmingly complex of an equation. Now here's where we need to know the dimensions of the body of the vehicle to put into this formula: Pitch = (Mass/12)*(Length*Length+Height*Height) In short the formula is (M/12)*(Y²+Z²) or (M/12)*(L²+H²) Yaw = (M/12)*(Length²+Width²) Roll = (M/12)*(Height²+Width²) Now that is assuming the weight is evenly distributed. Which is the average situation now adays. But we need to also know what materials the car is made of and essentially how much extra reinforcing it has with them. A older car made of steel will have more inertia than a supercar made of carbon fiber for example even if they weigh the same and are the same external size. A steel unibody street car typically has 25% more inertia than its size. A fiberglass/aluminum/carbonfiber bodied vehicle will typically have the same intertia as size. An open wheeled car will typically have 25% less intertia than it's size. It is important to note here that the height in real life will have the ground clearance (ride height) in it and in rfactor you want to subtract that amount because the reference plane is the bottom of the chasis, not the ground. Also we want to subtract half of the side window hight from the hight value as well, since the roof of a car is usually only about half as long as the car itself, Typically this value is .28
Here's a video of me driving a car that has my full physics set applied to it I have also uploaded it on here for you to download, it's called Noisy Tribes REALFactor, on the tail of the dragon:
To install my tire physics to an existing mod please open the tires folder within the REAL Phyiscs folder and select the tire size you want for that car and highlight it copy. Then open the mods vehicle folder that the car you want to use them on is in and paste them. Next, Place this code string in the selected cars upgrade.ini file and replace [tire size of your choice] with the actual size (Ex: 205-50-15):
UpgradeType="Tires"
{
UpgradeLevel="Mods Original Tires"
{
}
UpgradeLevel="REAL Tires"
{
Description="[tire size of your choice] tires in real tire physics simulation by RSmithDRIFT"
Price=-1
HDV=[GENERAL]
HDV=tirebrand=[Tire size of your choice].tbc
HDV=
}
}
If the car already has a tire upgrade section you shouldnt use the above code. You need to add this code to the pre-existing tire upgrade code, again replacing the [tire size of your choice] part:
UpgradeLevel="REAL Tires"
{
Description="[tire size of your choice] tires in real tire physics simulation by RSmithDrift"
Price=-1
HDV=[GENERAL]
HDV=tirebrand=[Tire size of your choice].tbc
HDV=
}
To fix the intertia, open the cars .hdv file and find this line and follow the directions described here.
Inertia=(2929, 3151, 549) // (Pitch, Yaw, Roll) all inertia except fuel. A car is basically a rectangle. I'm giong to make this simple otherwise it can be overwhelmingly complex of an equation. Now here's where we need to know the dimensions of the body of the vehicle to put into this formula: Pitch = (Mass/12)*(Length*Length+Height*Height) In short the formula is (M/12)*(Y²+Z²) or (M/12)*(L²+H²) Yaw = (M/12)*(Length²+Width²) Roll = (M/12)*(Height²+Width²) Now that is assuming the weight is evenly distributed. Which is the average situation now adays. But we need to also know what materials the car is made of and essentially how much extra reinforcing it has with them. A older car made of steel will have more inertia than a supercar made of carbon fiber for example even if they weigh the same and are the same external size. A steel unibody street car typically has 25% more inertia than its size. A fiberglass/aluminum/carbonfiber bodied vehicle will typically have the same intertia as size. An open wheeled car will typically have 25% less intertia than it's size. It is important to note here that the height in real life will have the ground clearance (ride height) in it and in rfactor you want to subtract that amount because the reference plane is the bottom of the chasis, not the ground. Also we want to subtract half of the side window hight from the hight value as well, since the roof of a car is usually only about half as long as the car itself, Typically this value is .28
