https://www.gateworld.net/news/2020/07/stargate-vfx-supervisor-creating-kawoosh-effect-sg1-early-days/

KAWOOSH!

amazing kawoosh effect on a TV budget and schedule. That iconic shot of the
Stargate connecting a wormhole to a distant world has to look right.


ordered a special [tank] for the show, and it was one meter by one meter by one




tests, then we set the pressure at 50 pounds. So, we roll the camera at 120
frames per second, the water is as flat as we can make it, you push the button
and it lets the air go down the tube right into the water. Well, as it turns
out, [the movie] used about 5 pounds, or 10 pounds. So 50 pounds just emptied
the tank everywhere!





https://www.youtube.com/watch?v=x1ODClVbjsw

https://www.youtube.com/watch?v=usHi9c3e_rY
"After years of on and off tweaking, I finalized the Kawoosh animation. It's all
done in LightWave 2018 using a complex nodal displacement setup, with some post
processing in After Effects.


Animation Test (2014)  ) I did years ago. The secret lies in tweaking the
displacement until it looks and animates like a water surface. The rest is
created by reflections of a proper background image, and a luminous surface
behind the event horizon."


Blender tutorial:

https://www.youtube.com/watch?v=zXr3IFsYWiI

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