Mike Williams wrote:

> The situation with the speed of holes is quite
> complicated. I have a series of pages about the situation
> here:
>     http://www.econym.demon.co.uk/holetut/index.htm
> 
> Because your holes are randomly placed, the first three
> tricks won't work, but the fourth trick might:
>     http://www.econym.demon.co.uk/holetut/holes4.htm
> 

Wow! I have been studying those tutorials several times
during my Povray years and found the Isosurface Tutorial
particularly useful. It feels strange now, suddenly, to be
writing to the author. Hmm, thank you for your work!

I have been reading Holes Tutorials too, but forgot the blob
technique.

So, what comes to the energy drink can holes... - I made the
holes as cylinders at first:

cylinder { <0,0.6,0><0,0.6,2>, 0.03
  rotate <0,RotY2,0>
  translate <0,PosY,0>
}

...and then I changed those to blobs:

blob { threshold 1
   cylinder { <0,0.6,0><2,0.6,2>, 0.03, 10000 }
   rotate <0,RotY2,0>
   translate <0,PosY,0>
}

The latter method generated comparable visual results with
the former one, but surprisingly the render time was
significantly higher - over 2 hours (2:14:34)! Do I
misunderstand something completely now?

> The situation with the speed of holes is quite
> complicated.

I really have to agree with this! :-)

   Larp

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