Below are the original image of the catapult that Im trying to clone,
and the progress so far. I wish I could say the top one was mine, but it is
of course not.

Anyways, Im looking at the metal details now, and the two lion heads roaring
in the front pussles me... I tried using a height_field from a adjusted
googled image... but, well, it's not that great as you can see.

Any ideas on how to create a lion head like that?
Or any teqniques on transforming "real" images to usable height_fields?

Kaplonk!

//RH

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Attachments:
Download 'pultings.jpg' (74 KB)

Preview of image 'pultings.jpg'

"RusHHouR" <gee### [at] mailnu> schreef in bericht 
news:web.45035cbfb1f300bf47d3ae5e0@news.povray.org...
>
> Any ideas on how to create a lion head like that?
> Or any teqniques on transforming "real" images to usable height_fields?
>

Hmm.. I am afraid you will have to model it in Wings3D for the best effect 
(or any other mesh building program).
Good work so far!

Thomas

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"RusHHouR" <gee### [at] mailnu> wrote:

>
> Anyways, Im looking at the metal details now, and the two lion heads roaring
> in the front pussles me... I tried using a height_field from a adjusted
> googled image... but, well, it's not that great as you can see.

The lion's head is interesting. It does indeed look like it could be modeled
as a heightfield (no undercuts--kind of like a vacu-formed shell.) I seem to
remember coming across an interactive heightfield modeler app somewhere on
the 'net, but can't remember where. Allowing one to paint an image and to
see the resulting HF in real-time.
>

> Or any teqniques on transforming "real" images to usable height_fields?

If you could solve THAT little problem, we would all be in your debt! ;-)

Nice work on the catapult so far. (Was this a real weapon?)

Ken W.

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"RusHHouR" <gee### [at] mailnu> wrote:
>
> Any ideas on how to create a lion head like that?
> Or any teqniques on transforming "real" images to usable height_fields?
>

The catapult looks good so far and the lion height field actually looks
better than I was expecting when I read your description of how it was
created. I think a mesh modelled lion is the best option but if you are
like me (I have no mesh modelling experience at all) I think you could get
away with using a blob I have used these for modelling organic looking
shapes in some images when the detail level does not need to be very high.
The closest I have come to a lion with a blob is on the image below, you
can have the source if you want (but I am sure you could find a better lion
than this one somewhere).

Sean

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Preview of image 'throne.jpg'

Well, I have no experience of mesh either. But maybe it's time to give it a
go. Height_field seems to be out of the question after all...

Kenneth, I do not think this exact model ever was a real weapon. The
original image is (I think) taken from some X-box game's conceptuals.
Actually, while modeling it, it struck me that it was not obvious at all
how this contruction could produce any sort of real catapult-movement.

But still, I love that image.

Thanks for all the compliments on the work so far! :D

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> Actually, while modeling it, it struck me that it was not obvious at all
> how this contruction could produce any sort of real catapult-movement.
The ropes around the pivot act as a torsional spring. The handles at
the back are to force the catch off the hook.

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The original full scale image is at
http://xbox.advancedmn.com/images/media/Catapult.jpg
The stored energy comes from stretching a rope spring on the axle when the 
boom is racheted down.
DLM

"RusHHouR" <gee### [at] mailnu> wrote in message 
news:web.4504417b6d4b72ce47d3ae5e0@news.povray.org...
> Well, I have no experience of mesh either. But maybe it's time to give it 
> a
> go. Height_field seems to be out of the question after all...
>
> Kenneth, I do not think this exact model ever was a real weapon. The
> original image is (I think) taken from some X-box game's conceptuals.
> Actually, while modeling it, it struck me that it was not obvious at all
> how this contruction could produce any sort of real catapult-movement.
>
> But still, I love that image.
>
> Thanks for all the compliments on the work so far! :D
>
>
>

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"Tim Attwood" <tim### [at] comcastnet> schreef in bericht 
news:45046439$1@news.povray.org...
>> Actually, while modeling it, it struck me that it was not obvious at all
>> how this contruction could produce any sort of real catapult-movement.
> The ropes around the pivot act as a torsional spring. The handles at
> the back are to force the catch off the hook.
>
Yes, and for those who have seen Scrapheap on TV, know that it is not so 
obvious to build a working one :-)

Thomas

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"RusHHouR" <gee### [at] mailnu> wrote:
> Below are the original image of the catapult that Im trying to clone,
> and the progress so far. I wish I could say the top one was mine, but it is
> of course not.
>
> Anyways, Im looking at the metal details now, and the two lion heads roaring
> in the front pussles me... I tried using a height_field from a adjusted
> googled image... but, well, it's not that great as you can see.
>
> Any ideas on how to create a lion head like that?
> Or any teqniques on transforming "real" images to usable height_fields?
>
> Kaplonk!
>
> //RH

Hello.

Maybe you can get inspired by a standard pov sample file:
scenes/advanced/ionic5.

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Attachments:
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Preview of image 'ionic5.jpg'

Sean btw that throne is a great piece, I forgot to say!
And thanks Tim and dlm for enlightening me on the tecnique used in this
model.
On the issue of building a real catapult sort of thing, I remember at least
one man who has reached success:

http://www.i-am-bored.com/bored_link.cfm?link_id=18075
Cows beware! ;D

And wow, Bruno, thanks a lot!
I really should take the time to deeper explore the POV folders before
venturing out into the dark.
I think I am already very inspired by that scene!

I wonder what else I might find...

//RH

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