THE INSIDER’S GUIDE
In last week’s episode, LiveTrack 3.0 and how the weather gets set up at the beginning of the session was explained in-depth, but what about the evolution of LiveTrack, and how it develops over time and throughout the duration of the session?
That has a serious impact on your race plans, of course, and given that LiveTrack 3.0 is fully dynamic, how the weather and the track evolve is entirely dependent on two main variables:
- The weather—hot or cold, dry or wet or variable, the weather plays a major role in the dynamic evolution of a track
- The cars on track—tyres coming into contact with the race surface also plays a major role in the dynamic evolution of the track, and this includes both the number of cars and the type of car on the track
How do cars impact the race surface in LiveTrack 3.0?
- The more cars there are circulating on-track, the more impact they will have on the track; more rubber build up, more water displacement, higher potential for dirt, dust and other loose material to be brought onto the circuit if a car goes off track, all of this will impact the nature of the track’s surface dynamically and thereby play a big role in the grip that the track affords
- The type of car also has an impact. Faster high downforce cars are usually good at displacing water, so they will dry the track quicker than a low-end touring or road car that can’t shift as much water
- Cars driving around the circuit also help to heat up the tarmac which will dramatically affect grip levels. The racing line is usually a little warmer than off the racing line, as friction generated by contact between tyre and track gets embedded into the track’s surface. Places like braking zones, turn-in points and traction zones see more heat build up because of the impact of higher loads from the tyres. The longer the break between cars passing, the more the track will cool again too
- In conditions going from wet to dry, or easing rainfall, drying lines will start to dynamically appear on the track depending where around the circuit cars are driving. The tyres displace the water and form a drying/dryer line over time. The more cars run over the same racing line, the quicker a drying line will appear. In offline modes, or when drivers consistently take the same line in multiplayer racing, you’ll find a more prominent drying line appear quicker, as a field of AI or pro drivers are a lot more adept at churning out consistent laps using the same line lap-after-lap’
- Cars driving through wet parts of the track, especially through the LiveTrack puddles, drag and splash water back onto dryer parts of the track. This helps to disperse water to other areas but may also affect the grip in some areas as a dry line may be completely dry one lap, but next time round a car may have splashed water across the track thereby affecting grip
Now that the cars and how they influence LiveTrack 3.0 has been discussed, let’s take a look at how the weather does similar:
- The amount of sunlight, and the season of the year, will have a direct impact on the ambient and track temperatures. These will affect how quickly water builds up around the circuit in the case of gong from dry to wet conditions, and also how quickly water evaporates from the track surface when going from wet to dry. Clearer and hotter conditions will dry a track quicker and it will also take longer for water to build-up than what you can expect with overcast and cooler conditions
- Rainfall will wash away some of the rubber, dirt and loose material that has built-up on the track, “cleaning it” a bit. The rubber that has built up and remains on the track, however, will actually become more slippery, hence why deviating from the racing line in wet conditions can be beneficial for finding more grip. Any dirt that remains on the circuit, meanwhile, will turn to mud and become even more slippery while any further dirt and dust material being pulled onto the track in wet conditions will also be muddy and slippery
- Rain is localised on the track. The weather system simulates rain clouds that vary in size, starting point, and direction they move in. This is also influenced by wind direction. As these clouds move around the track environment, they will expand or shrink in size, overlap or disperse, spread out and move independently from each other. Areas under these rain clouds will receive rainfall, meaning that in some especially larger track environments, you may well find that some parts will be wet, some completely bone dry. Overlapping rain clouds, meanwhile, will result in heavier rainfall
One thing to note is the LiveTrack 3.0 system is tied to the Time Progression setting. Accelerating the Time Progression will result in LiveTrack 3.0 also accelerating; what this means is that rubber, dirt and temperature build up occur faster than the normal standard rate, as will the amount of water build up, dispersion, and evaporation in changing conditions.
With this all combined, LiveTrack 3.0 and weather systems create a diverse set of conditions that evolve completely dynamically over time. No session or race is going to be the same and evolve in the same way as another. The amount of variance is expansive, and greatly adds to the predictability and immersion of the LiveTrack 3.0 and weather systems in Project CARS 2.
Now sit back, grab a cup and watch as Yorkie065 takes you on an in-depth tour of LiveTrack 3.0 in Project CARS 2, and shows its dynamic evolution in action.