When visiting city 17, don’t forget to visit the Citadel. You can't miss it: it's a huge black alien structure in the center of the city, which rises above the remains of the human race with Dr. Breen's cozy office on the top floor. Half-Life 2 begins at the foot of the Citadel and ends at its roof, with a slight detour to any other place in between.
The Citadel is a tall building. It is so high that it can be seen pointing to the sky with the tip buried in the clouds even hours after leaving the city. But what height is it, exactly? Half-Life fans wanted to know.
In 2009, someone emailed Half-Life 2 writer Marc Laidlaw to ask about the size of the citadel.
Laidlaw, apparently, didn’t know either. According to the person who sent him an email, Laidlaw asked a Half-Life 2 artist and he said it was "at least a mile& # 39; high, adding: "If you can find someone with an HL2 tree, they could load it into the model viewer and multiply it by 16 (since this is a skybox version), you will get an exact height . "
Several calculations were made and finally in 2012 it was determined that the Citadel has a height of 2,569 meters (8,430 feet). That's a little over a mile and a half. Very tall! (Note: Initial calculations showed that it was even higher, almost 3,000 meters, but these calculations were revised to take into account that part of the structure was buried.) an image created for scale next to other buildings on Earth. And these days, even the Combine Overwiki accepts this height so correct.
But a redditor named Rscreamroad hasn’t finished buying it and has apparently bothered him for about the last 9 years or so, since the height of the Citadel was calculated. He decided to recalculate, and published an extensive account of his findings on Reddit.
“Over these nine years, I had a lot of objections that destroyed my immersion in the game,” Rscreamroad says in the post. "At least I want to try to convey my ideas to the community and resume this debate."
Part of Rscreamroad's problem is that if the height of 2,569 meters is correct, this would mean that the Citadel is only about 250 meters wide, which doesn't make much sense to those who have been inside the Citadel. We’ve seen not only the height of the building, but the degree of size it has, having taken a long combined walk through its interior near the end of Half-Life 2. 250 meters (820 feet) no they seem big enough to Keep there everything we've seen, from cannon fleets to knights who angrily tread inside. The track through which the pod circulates is quite long and involves an interior width considerably greater than 250 meters.
So Rscreamroad investigated a few things. He loaded the level that takes place at the top of the Citadel and looked down at the texture of the city below, which he eventually assumed was based on a real satellite image. In the game files, that cityscape was actually four different images and, after pasting them together, Rscreamroad compared it to real cities, finally discovering that the view of City 17 from the top of the Citadel is he really created from an image that looked down on New York. And the position of the camera in this image is 8,773 meters high. When you are at the top of the Citadel looking down, the city is almost 9,000 meters below you.
Basing the height of the Citadel on an image of the ground below might not be the most scientific conclusion, as artists probably only chose an image that looked good and gave players the impression of being very airy. But when Rscreamroad loaded the Citadel model from Half-Life 2 to Blender, it found that it really wasn’t that far off. His measurements at Blender concluded that the Citadel was "8,406 meters or 27,580 feet. It was also 860 meters wide and 230 meters underground."
If Rscreamroad is correct, it is considerably taller than 2,569 meters. It is more than five kilometers high. It makes the Citadel about three times taller than everyone has assumed over the last decade. And being so high makes the interior wide enough to make the long journey combined with pods make a lot more sense.
However, Rscreamroad is not sold at all in this new measure. He says: "The truth is that the Source engine has a lot of different versions (of the Citadel model). In the developer's resources I found information that they started using the 1/12 scale for the skybox unit in the last In some cases, 1 unit is not equal to 1 inch, but 2/3 inch, and Blender itself, according to versions 2.79 and 2.8+, slightly changed the size conversion mechanism of the models in relation to loaded models. "
I'd say a five-mile citadel looks like … a little too high, for me anyway. At the very least, it seems like the Half-Life community has something new to discuss. If you prefer to watch a video to read the entire Reddit post , Rscreamroad has also made a video and you can watch it here on YouTube.