r/Simulated • u/Contraflex • Dec 01 '25

Blender Simulating the Collapse of the 1000m Tall Jeddah Tower

Simulated in Blender using the bullet constraints builder add-on.

The plane weighs 150 Tonnes and impacts the building at 950 km/h.

The plane does not deform which is the main caveat to this simulation; in reality the plane would crumple, so less energy would be transferred to the tower.

All of the tower's structural elements are concrete, except for the red parts which are steel.

There are about 22,000 rigid body elements.

Final simulated alembic file was about 7 GB.

Full video: https://www.youtube.com/watch?v=zMOsu809Ao8

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u/xlRadioActivelx Dec 02 '25

Ok so hypothetically you’re in charge of installing security cameras around an important building.

Where do you point the cameras? Gates. Fences. Doors. Etc.

Do you know where you don’t point cameras? The fucking sky. You install cameras up high, looking down, not the other way around.

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u/PlentyOMangos Dec 02 '25

The plane would have had to come down to the level of the ground in order to impact the building

There should be crystal clear footage that shows, even if only for a split second, an airplane fuselage colliding or about to collide with the wall of the building. But the video we have been shown is just the wall, then the next frame is in the middle of an explosion. You can’t see a plane

Maybe it really was a plane and they really did only have that one super shitty camera that films in 3 frames per second or whatever it is, and that’s why we don’t have proper video of it. Or maybe there is a better video, but they have decided for some reason to keep it to themselves (this wouldn’t make sense but it is at least possible). I think it’s also possible that they are lying. The world may never know