6.6.2 Swimming Fish

Let's create a fish:

1. Create a freeform fish (or a snake or any other creature whose length it greater than its thickness).

2. Make the fish the current level and subdivide it to groups from the tail to the head.

3. Create a DIRECTION method to the same level with the groups.

4. Create a closed B-Spline path representing the route the fish swims, at the same level with the fish primitive (one level upwards from the groups).

5. Select the B-Spline curve representing the path for the fish, select the menu Create/Structure/Link and Cut and Paste it under the method object.

Play the animation to make the fish swim along the path.

Note: That a curved path makes your fish swim like a fish. If the curve contains no small bends, your creature acts like a slug: it does not wriggle. It may take some time to fully learn to know the nature of this method, but the results are worth the effort!