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how to make an helix in form of an oval?

I am trying to draw on Catia a helix, that is not shaped liked a straight spring, but instead rotates around an 3D oval shape... I tried already to project the wireframe onto an oval surface, but I ...
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375 views

Create a Complex 3D Shape in Adobe Photoshop

I am trying to create a complex 3D shape in Adobe Photoshop, like the shape pictured below. Is this possible? Are there any tutorials available? I was unable to find any. Thanks.