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Does anyone know how to make an overhang on a height field?
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Well, it can't be done... not with normal height fields anyway... (because
remember, it just gets height from the image...)
There are several ways aroung it though...
--
Lance.
---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
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it isn't possible.
you'd have to use a mesh for that.
Steven Jones wrote:
>
> Does anyone know how to make an overhang on a height field?
--
//Spider
[ spi### [at] bahnhof se ]-[ http://www.bahnhof.se/~spider/ ]
What I can do and what I could do, I just don't know anymore
"Marian"
By: "Sisters Of Mercy"
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Lance Birch wrote in message <37076385.0@news.povray.org>...
>Well, it can't be done... not with normal height fields anyway... (because
>remember, it just gets height from the image...)
>
>There are several ways aroung it though...
>
Well, you're a lot of help :)
What several ways do you have in mind?
Margus
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import in Breeze and convert to a mesh... :-)
or use a tool for it. (sorry, I don't have the time to write one)
Margus Ramst wrote:
>
> Lance Birch wrote in message <37076385.0@news.povray.org>...
> >Well, it can't be done... not with normal height fields anyway... (because
> >remember, it just gets height from the image...)
> >
> >There are several ways aroung it though...
> >
>
> Well, you're a lot of help :)
>
> What several ways do you have in mind?
>
> Margus
--
//Spider
[ spi### [at] bahnhofse ]-[ http://www.bahnhof.se/~spider/ ]
What I can do and what I could do, I just don't know anymore
"Marian"
By: "Sisters Of Mercy"
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<<it isn't possible.
you'd have to use a mesh for that.>>
Wrong. You could make an INVERTED (<1,-1,1>) height field... I've got
an example, in the form of a upcoming irtc entry... You'll have ta wait
11 days...
H. E. Day
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Hmm, Not really, I've been working on them asw well, but never quite got that
cave-like overhang look. perhaps it's my HF ...
"H. E. Day" wrote:
>
> <<it isn't possible.
> you'd have to use a mesh for that.>>
>
> Wrong. You could make an INVERTED (<1,-1,1>) height field... I've got
> an example, in the form of a upcoming irtc entry... You'll have ta wait
> 11 days...
>
> H. E. Day
--
//Spider
[ spi### [at] bahnhofse ]-[ http://www.bahnhof.se/~spider/ ]
What I can do and what I could do, I just don't know anymore
"Marian"
By: "Sisters Of Mercy"
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Would say the same. I am thinking of a normal highfield with a negative
highfield on top. The only problem I see is to get the change of the
slope correctly.
Alex
H. E. Day wrote:
>
> <<it isn't possible.
> you'd have to use a mesh for that.>>
>
> Wrong. You could make an INVERTED (<1,-1,1>) height field... I've got
> an example, in the form of a upcoming irtc entry... You'll have ta wait
> 11 days...
>
> H. E. Day
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I have just go another idea. To make a volcano is rather easy, but if it
is rotated (<-90,0,0>) it should give a nice cave. Of course it can't go
down again, but works if this feature isn't needed.
Alex
Steven Jones wrote:
>
> Does anyone know how to make an overhang on a height field?
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'matrix' used to shear it might do if you can get the right matrix maybe
(I have no skill in them myself whatsoever). Or possibly (and better
yet) multiple instances of the same HF scaled/translated/rotated by some
amount to offset from a "base" HF. Something like:
union {
object {Your_Base_HF} // same as the one below, only no 'water_level'
(could have tho)
#declare C=1
#while (C<10)
object {
Your_Added_HFs //with a large enough 'water_level' to remove the
base.
scale C/5 //goes to 2 times larger than original
rotate C*3*y //rotates to 30 degrees on y axis
translate <C/10,C/10,0> //move a total of 1 unit along x & y axes
}
#declare C=C+1 //ten HFs
#end
} //union
This is just my quick answer typed out here so you'll need to write your
own.
Steven Jones wrote:
>
> Does anyone know how to make an overhang on a height field?
--
omniVERSE: beyond the universe
http://members.aol.com/inversez/homepage.htm
mailto:inv### [at] aolcom?Subject=PoV-News
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