POV-Ray cones question

Is it possible to make the end of a cone curve up or down in POV Ray so that the cone wouldn't just be straight?  An example picture of what I want (really primitive) is at http://www.pnn.com/~dbaldwin/game/example.gif  Could I get example code, too?
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trollmanAsked:
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Patricia080698Commented:
I might have another solution to your problem. If you want your cone to have a rounded corner, I would suggest making a cone with a cutout end and adding a circle at the end. same place as the cutout end. Put It in a way that they are one over the other one and make them the same color or texture. Good luck.
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trollmanAuthor Commented:
Adjusted points to 70
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trollmanAuthor Commented:
Adjusted points to 80
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trollmanAuthor Commented:
Adjusted points to 90
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trollmanAuthor Commented:
Adjusted points to 100
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gbentleyCommented:
If you want to use the cone object then the answer is no. It is strictly a straight cone.

The only way that you can do this is to create the shape from a mesh of triangles. The difficulty of doing this depends on your maths skills.

If you want some more information on this, please comment on this answer.
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trollmanAuthor Commented:
I would like to know how to do it with a mesh of triangles.  I actually just wanted a cone shaped object, not necessarily a cone.  Guess I should have specified that!
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trollmanAuthor Commented:
If you are still out there, gbentley, I would still like to know how to do it.
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gbentleyCommented:
Trollman,

Give me a day or so, and I'll get back to you. I don't have a full time connection, so I only just got your message.
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trollmanAuthor Commented:
OK, whenever is fine.
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gbentleyCommented:
I am having a lot of trouble getting the maths right on this one. I will keep trying as it is something that I also want to do. The main trouble is that shortish cones "wrinkle" when you bend them.

In the meantime, there is another way. Look for Chris Colefax's plugin called BENDER. This is on the net. Just search on his name. This is an include file that lets you bend any kind of object in POVRAY. It is fairly easy to use.
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trollmanAuthor Commented:
Alright, I will try that and give you the points if it works for me.   I probably won't be able to try it until the end of the day.

Jonathan Baldwin
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trollmanAuthor Commented:
I am pretty sure that plug-in will work, but I can't seem to get it to.  I got it to look sort of all right, but then it started to do weird things.  Do you think you could give me some code that would make a bent cone that would look good?  Sorry for taking a while to get back, I have been away for a while and I was very busy.  I raised the points up.
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AfroNinjaCommented:
There may be another way to do it.  I don't know how familiar you are with L-Systems, but if you define a shape using LParser (available from http://www.xs4all.nl/~ljlapre/) with a starting thickness of 1 or 0 and define a path that expands and turns as you need, you can then get exactly the shape you need.

Here's a sample LParser script to do this.  I haven't tested it, because I'm not at a computer where I can currently do so, but if I get the chance to refine it, I'll let you know.

---begin script
2          # 2 Levels of recursion.  This allows it to complete the script once
20        # Roll /  Pitch / Yaw angle
1          # Starting Thickness
A         # Starting Rule
# Rules
A=BBBB"?F"?F"?F
B="?F+
@
---end script

Again, that won't work for sure, but it's worth a shot.
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trollmanAuthor Commented:
I'll try that as soon as possible and write back if it works.
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trollmanAuthor Commented:
That actually looks pretty good!  Thanks!
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