|
 |
The method left a hollow cone stuck in the HF. No hole just stuck in there.
I think I will have to give up. It sounded like an easy idea and a good
effect, but seems to difficult to implement. Thanks for the assistance
though!
"Ken" <tyl### [at] pacbell net> wrote in message
news:395C05D7.36D917D0@pacbell.net...
>
>
> Patrick Dugan wrote:
> >
> > I am pretty familiar with the difference command. The cone is being
removed
> > from the table top.
>
> It is important to remember that a HF object is much like a sheet of
> paper. It is considered an infinately thin object. So trying to make
> a hole in a HF requires that you provide the hole material for it.
> Otherwise all you are really doint is making a cutout in the surface
> of the HF itself.
>
> Try the following steps -
>
> 1. intersect the cone by the HF - use the open keyword with the cone
> (This step creates the hole material with a top that conforms to
> the irregular features of the surface of the HF object) You might
> also try clipping the cone with the HF if this step does not work
> as described.
>
> #declare Cone =
> intersection {
> cone{<...>,.,<...>,. open}
> height_field {}
> }
>
> 2. difference the HF with another cone of the same size and location
> - do not use the open keyword with this cone. (This step creates
> the cutout through the HF. You could as easily use an intesection
> for this operation)
>
> #declare HF =
> difference {
> height_field {}
> cone {}
> }
>
> 3. union the intersected cone with the differenced HF. (This step
> combines your "hole" with the HF object to create the effect
> you are looking for - I hope).
>
> union {
> object{Cone}
> object{HF }
> }
>
>
> This might work but I have not verified it.
>
> --
> Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
> http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
Post a reply to this message
|
|
