"JRG" wrote:
> "Rune" wrote:
> > Which mesh grass macro is the best for a
> > curvy height_field like this?
>
> Try Gilles' macro. Of course you have to modify it,
> as it presently does not support heightfields.
> AFAIK at least one pover (Tony[B]?) has already
> done that. So ask him. :)

Have done, but he seems to may have lost it...

Anyway, I tried some grass made by Alan Holding which works for
height_fields.

When using a medium sized field of grass, his mesh grass renders about as
fast as my faked grass, when taking into account the parsing. Both images
were finished in two minutes at 320x240. However, when increasing the number
of blades, the parse time of the mesh grass increases very much, and
exceeded half an hour in my test. The larger the field, the higher memory
requirement and longer parsing time there is for mesh grass. In contrast, my
faked grass has no parse time at all, nor any significant memory
requirement, no matter the size of the field. So my faked grass is best
suited for large fields of grass.

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:  http://rsj.mobilixnet.dk (updated Mar 19)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Ring:  http://webring.povray.co.uk

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