I orginally just wanted a render that showed off the rigging I did on the gate when I made it.... the complex gate opening effect is because my attention wandered
I had tried a water sim for the gate, but it didn't give the effect I wanted. Because I had a very clear idea of how it should look, I just made it as a mesh and animated it with shape keys. with the basic shape made I used displacements to make it roil
previous post; https://cohost.org/the-technician/post/6157397-stargate
