Outlining the shapes using the Knife tool

The polygonal modeling process is incredibly powerful.…Starting from a simple cube, you can create just about any kind of shape you can imagine.…For a symmetrical object like the shark, it's really important to look at your…object from all sides during the modeling process and make sure that you…haven't gone off-track somewhere.…We're going to be roughing in the shape of this shark from the side view mostly.…I have my dummy shark in there and really it was there for position to make sure…that things lined up correctly.…I really don't need that anymore.…I'm going to start off from scratch again.…I'm going to leave my HyperNURBS in the scene, but delete this original shark cube.…

Let's add a new cube to the scene, and this is going to become the first step in the process.…So I'll add that to the HyperNURBS and you can see that makes it into a sphere.…This cube, I want to make the cube the same size as the shark model.…So if I go to the Object properties for the cube, and I go along the X-axis and…