Boat Hull Tutorial
by Barry Christian p2 |
|
Creating the Basic Shape |
| Of course, hull shapes are many and varied. I have chosen the
canoe hull, but this works for just about any hull shape. To start , we draw the
"top" of the hull. This would be the deck. We are actually building the boat
hull upside-down. Hey, come to think of it, that's how real boats are built. Hopefully
from the tutorial, you see that you only need 4 points on the spline for the canoe hull.
You can also refer to figure 1. You need one each for the bow and stern. (That's front and
back, respectively, for you land lubbers). You also need one on each side at the center of
the boat. (midships). |
Figure
1 |
Now you need to set the spline corner setting for
the bow and stern vertices to "sharp corner". You do this by clicking the upper
left button in the spline properties panel while you have
the corner to act on selected. Once you have done this for the bow and stern (front and
back) you can go to the sweep/extrude tool to shape the object into the hull. |
| Extruding the Hull |
It is a good time to turn of the grid by clicking
the grid icon . Now click the sweep/extrude icon . You will notice in your front view that the flat shape you
created earlier is now a 3D version of its former self. You may also notice that it is too
tall. That's okay though because we are going to change that in just a moment. The default
tool that is ready once you extrude it is the "Point Nav, Point Move" tool. This
is in the Point Nav panel . you will
see it grayed out(selected) in the accompanying image. If you are using trueSpace 4, you
may not see the panel. In that case, you can bring up the panel by right-clicking the
point edit icon . If you are using trueSpace 3 this will not
work, but you will not need to do it because it is already there automatically. (I don't
know why.) If you place the cursor in the perspective window, you can hold the right
button of the mouse down, thereby only adjusting the Z axis of the extruded face of the
hull. If you extrude it about 4 or 5 times it should be enough to make it smooth without
creating too many polygons. As you extrude it, you will need to size your selection down
with the "Point Nav, Scale" tool. You will find it in the Point Nav Panel where
you found the Point Move tool |
before . Notice the grayed out
icon in the Point Edit or Point Nav Panel depending on whether you are using ts4(Point
Edit) or ts3(Point Nav). Each of the extrusions should not be much smaller than the first
because a canoe hull isn't too extreme. Only the final extrusion should be a lot smaller
as you can see in Figure 2. Figure 2 shows the completed hull. Once its complete, click
the "Object Tool" . This will de-select the face
and select the entire object. |
Figure
2
 |
You will notice that the canoe is upside-down. You
can turn it over by whatever method you like.
I like to enter -180 in the "rotate X" axis in the object info panel that you
bring up by right clicking the "Object tool" . |
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