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* Hexagon 2.2 or higher
Support Files - None
We are going to create the surface of the conch shell using a double sweep. This tool builds a surface from one section and two profiles. The section will be a curve and the two profiles will be two nested helixes. We’ll then turn this into a 3-d shape that can have two shading domains, one for the inner shell, and one for the outer shell.
This makes a long thin tapered helix (end radius 0) with 6 turns that will be the inner spiral of the conch. Make sure it stays in the same spot.
This makes a shorter, wider tapered helix 6 turns that will be the outer spiral of the conch. Make sure it stays in the same spot.
Notice that their starting points of both helixes align nicely and lie directly on center the horizontal plane.
None of these adjustments are necessary, so you can skip this step, but they give the conch a bit more of a realistic look.
Now close the tiny space between the two shells.
You’re now ready to export the object and use it! The last image is one that was done quickly in Carrara applying a fractal bump to the outer shell to put some texture on it. I’m sure with a good texture your conch will look perfect!
I hope you’ve learned something new with this tutorial. Happy modeling!