Try
http//www.newcolor.com/darenw/dswpov/disp.html

hope this is of interest
mick

JK <kla### [at] hotmailcom> wrote in article <35E### [at] hotmailcom>...
> 
> 
> Twyst wrote:
> 
> > Howdy. I'm planning to start a Repository for patches for Pov-Ray...
> > Organized by version, with screen shots, preferably. I'd also like to
put
> > together a list of know bugs/fixes ..
> >
> > This is where I need some help. I don't have the time to go searching
for
> > all these patches. I know of some, but I know there are more out there.
What
> > I need some help doing, is making screen shots, and tracking down
> > links/code. What I'd like to do is have the CODE available in Diffs,
and
> > maybe a link to the homepage/compiled version.
> >
> > Please, feel free to e-mail stuff to me.. I have only 1 criteria, and
that's
> > for the screen shots:320x200 if at all possible. =)
> >
> > I won't guarantee that it will be up within a week or two, but I'm
certainly
> > going to try.
> >
> > --
> > Twyst -------------------------------------------
> > twysted mynd - for pov-ray news, reviews and tutorials
> > http://twysted.net
> > e-mail: twy### [at] twystednet
> > ---------------------------------------------------
> 
>   Hi there Twyst.
> Here's something Andrew Hedges posted at povray.text.scene-files. The
problem is
> that at small sizes, the sphere object in the scene below disappears
> (ajhmeter<0.032 or something). Here's his message:
> 
> -----------------------------------------------------------
> I'm trying to create a pillar out of a union of a vertical
> cylinder topped with a sphere to round off the end, and so obviously the
> cylinder and the sphere need the same radius. This works ok when the
> value I'm using for the radii is greater than about 0.1, but when I get
> down to small numbers (like 0.01) the sphere comes out looking smaller
> than the cylinder.Here's the code I'm using (ajhmeter is an adjustable
scaling
> factor):
> 
> //-- begin code --
> #include "colors.inc"
> 
> #declare ajhmeter=0.1
> 
> camera
> {
>   location  <0.0, 1.2*ajhmeter, -2*ajhmeter>
>   direction 1.5*z
>   right     4/3*x
>   look_at   <0.0, ajhmeter,  0.0>
> }
> 
> light_source {
>   0*x
>   color red 1.0  green 1.0  blue 1.0
>   translate <-30, 30, -30>
> }
> 
> plane { y, -1 pigment {color rgb <0.7,0.5,0.3>}}
> 
> union {
>   sphere { <0, ajhmeter*1, 0>, ajhmeter*0.1  pigment {Blue} }
>   cylinder { <0, 0, 0>, <0, ajhmeter*1, 0>, ajhmeter*0.1 pigment {Red} }
> }
> 
> //-- end code --
> 
> Andrew
> -----------------------------------------------------------
> 
> I was wondering if this might be a bug.
> Perhaps you can tell, as a bug-expert (?) :-)
> JK
> 
>

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