Tag Archives: portugal

portugal (post_tag auto created by Wordpresser)

The outdoor sky/clouds have joined my plants stream

I decided to add a 5th camera to the live stream of my plants (not) growing. This new camera captures the outdoor sky/clouds, and serves as a natural reference to what time of day is it, since I do not overlay any date or time indication in the sources. As I write, it is dark outside – not the best timing :).

For now, the stream is available on Twitch: https://www.twitch.tv/arturmarques_dot_com.

In the past, instead of a live stream, my option was to build time-lapse videos. To assist in the process, I coded solutions that build automatic time-lapse videos from images datasets, with configurable quality. When using these tools, I usually build 24 hours videos, but I could request the output of a larger or shorter time span – for example, I have enough material to construct months-long files. The key reason why I have not been doing so, is that I have moved much of the raw data to the cloud, which is not as instantaneously readable, as local physical volumes. When I started playing with these media and doing these easy, fun, observations, one key reward was being able to promptly unveil whatever had happened in the past x hours.

I will adapt my solutions to the new cloud storage and automate the process again. Until then, the live stream should be available with some regularity.

Prost’s 1988 McLaren F1 @Algarve = 01:27:594

This is a 01:27:594 lap around the Algarve track, racing Alain Prost’s 1988 F1 McLaren. As I write, the lap record is only 11 seconds faster, in a F1 2020 car.

From 2020-10-23 to 2020-10-25, the Formula 1 Championship is at a new racing circuit, where F1 cars have never raced before: the “Autódromo Internacional do Algarve”, in Portimão, Algarve, Portugal. F1 never officially raced, but did test there, in the past.

In a season so competitively poor and lacking dispute for the wins, the interest is beyond the podium. Tracks like Algarve’s are a very welcome addition to the calendar, not just because they are new, but mainly because they are different: in this case, the layout brings variance in the Z-axis. Cars go up and down, frequently! Corners are blinder and wider than usual, allowing and even inviting alternative trajectories, enabling a human-factor not so evident in other locations. I am enjoying it! It is unique and F1 needs variables that can contribute to less predictable race results.

I decided to try it myself, racing Alain Prost’s 1988 McLaren F1.
I have also upped my simulator’s resolution, from 2560×1600 to 3440×1440. The wider ratio is more immersive. I changed for productivity reasons, not expecting gaming benefits, but they are there.

Here is a video of a 01:27:594 (minutes:seconds:milliseconds) lap, using rFactor 2. Contrary to many, I never found the sound of this car’s Honda engine particularly enjoyable or spectacular. In-car, the noise is too regular, providing relatively poor acoustic queues for when to shift gears, up or down. Modern F1 cars literally beep the drivers when it is time to up-shift. This car also had no speed limiter and no driver-assists, and that is good.
I find the McLaren heavy, high down-force, trustable. That is its key positive attribute: it is predictable – after a short time, you know how it will behave, except when on the limit on old tires, when it becomes less clear how the tire wear will condition outcomes.
I dislike the slow gearbox and there is nothing the driver can do, to compensate it: the setup only allows different gear ratios.

Regarding the track itself, it is ever-changing in altitude, and challenging to the left-front tire under braking, because there are two right-corners which require heavy braking while not in a straight line.

The video has two segments: the first ~90 seconds are captured from in-car, exactly as seen, when playing. The second half is footage from the “TV” camera. Enjoy!

Ferrari F1 1968 @Algarve, Portugal : 01:51:9xx

If there is anything good in the current F1 2020 championship, is the new circuits, namely the “Autodromo Dino e Enzo Ferrari” (Italy), the “Autodromo Internacional do Algarve” (Portugal), and the “Intercity Istanbul Park” (Turkey).

Novelty is much needed. F1 has never been so full of young drivers, yet smelling of old déjà vu winners. Or winner, singular, such as been the boring, uncontested for tooooo long, dominance of Lewis Hamilton.

The wonderful Turkish track is a return, but it was missing from the official F1 calendar for so many years, that it feels like a debut. The Ferrari circuit is also no stranger to F1 (red) cars. In a way, the Portuguese track will be the completely new event.

I raced the Ferrari F1 1968 car around the Algarve track, in the RFactor 2 game. With no aids (no traction control, no braking assistance, no stability control), these 1968 cars are nearly impossible to control. They can be “driven” but never pushed to their real top performance levels, unless at least a bit of traction control is set on the game.

The 01:51:9xx lap that I am sharing, contrary to my usual, does use that bit of traction control (the minimum level). I could not approach the A.I. cars without such help. Even with TC on, I was 2 seconds adrift the top computer cars. If I was optimistic, I would say that if I practiced enough, I could null the difference in a few hours, but I value first impressions and my impression was that, with these cars and A.I. at 101%, TC is the only way to make the challenge feasible.

This left me wondering how hard these cars really were. I felt the Ferrari too nervous: not only small throttle inputs are enough to destabilize it out of control, but also small direction corrections can easily overcompensate and make the driver lose the car.

The video I am sharing lasts for more than the time of my recorded full lap (01:51:9xx), because it includes the start of a failed second attempt and a TV perspective of the whole event. I beached the Ferrari very early on the second lap, because of an unexpected car response out of a turn.

F1 2020 at the Estoril circuit

This is a 01:14:xxx lap around the current (2020) layout of the “Estoril” circuit, @Portugal, Europe. The car is Esteban Ocon’s 2020 Renault F1, using “RFactor2” – the simulator selected for the first ever official “24 hours of Le Mans Virtual” (check https://www.studio-397.com/2020/06/celebrating-24h-lmv/).

Relatively to the layout that hosted real Formula1 / F1 races in the 1980s, and in the 1990s, the key changes are at turn #1 – now a ~90 degrees corner, instead of a pedal-to-the-metal right – and, by the end of the lap, at what was called “curva do tanque”, which also became slower, but not as slow as in the horrible version, used for some races, following Senna’s death, when there was a literal stop-and-go “S” segment.

This is an unprepared lap, done just to test the 2020 F1 cars and the circuit. For now, the cars sound bad and have much to improve in terms of credibility – I full-throttled the Renault at the exit of several slow corners and indeed got some wheel spin, but it was too easy to control. Nevertheless, a promising first version of these cars.

The video has four segments: from in-car, then two different from-halo angles, finally one lateral perspective.