Light ROM 4/Light ROM 4 - Disc 1.iso/text/maillist/1995/122295.doc/[e-mail] _Tue Dec 26 19:50:13 1995.msg

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From: RICK CATIZONE <[e-mail]>
To: Multiple recipients of list <[e-mail]>
Subject: Re: How to go from an outline to a rounded 3D object?
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On Sat, 23 Dec 1995 [e-mail] wrote:

>         I'm doing a project where I wanted to make different kinds of
> fish. I would use the picture of the fish in the background and trace
> around the outline with points. Tripling these and then extruding gives
> me a good starting point for a 3D version of the fish. The problem is
> making the body of the fish extend out rounded, leaving the fins
> narrow. I would subdivide or use metaform and then use the magnet tool
> to pull out the points in a bell shape then narrow the fins with the
> stretch tool. This gives me an acceptable object for background shots,
> but it doesn't look so great for closeups. I wanted more rounded and
> tapered body sections. Subdividing too much to give more points to
> pull out, but increases the polygon count too much.
>     What would be a procedure I could use starting with just an
> outline to give a more natural looking object? Should I fill within
> the outline with a matrix of points?
>
>     Don Hirschfeld  http://www.portal.com/~donrh
>
    RC:  Don...the first thing you might want to do is , rather than use
sketch tool to outline, go and set all the points you want at the
junctures you want using create points. That gives you more control; at
least that's what I find.  Then you select each point in sequential order
and hit "p" to create a fish shaped poly.

Hit F1 to center object, as I would use taper 2, and the zero point would
save you a lot of work. But first we need to extrude it slightly so it
has dimension.

Two approaches...opposites to get to the same place. You could extrude to
te maximum width at body's middle, and then taper both ends[individually];
or you could do a minimal extrude and taper2 to make mid body wider.

If that was your choice, do a minmal extrude to the width you want fin to be.
Next, hit F1. Then select all polys above mid point [would probably be a
reall good idea to make sure that a handy dividing line fell right along
the zero on the axis. Use taper2, hit n for numeric,  select Y axis, select
"minus" in the sense direction, and set a value of width that you like in the X axis[
this assumes that you have you fish running along the Zaxis.

Then select polys above the zero line, select taper two, hit n for
numeric, and just change the direction sense to "plus". In both cases you
wil want to use the EASE functions.

Certainly not the only way to do this, but it is one way.

RICK CATIZONE/ANIVISION