hughes, b. wrote:

> "Bill Hails" <bil### [at] europeyahoo-inccom> wrote in message
> news:3e5fdce5@news.povray.org...
>> Hi. I'm sorry if this is a FAQ, but I can't find anything
>> in the docs.
>>
>> If I use a height field for a landscape, is there
>> any way I can randomly place objects on the surface,
>> or add grass that follows the height field?
> 
> You could look up keyword 'trace' in the Scene Help if you have POV 3.5,
> and check out the includes\rand.inc too.

wow, thanks. 'trace' looks like the perfect solution, at least for
random placement. I'll play around.

> If you have version 3.1 of POV-Ray and MegaPOV 0.7 there is a hf_height_at
> feature made specifically for returning points on the surface of a height
> field. There are four trace examples in the folder scenes\language so you
> might be able to learn something from those. An alternative would be to
> search the newsgroups; easy to do from the web http://news.povray.org/
> (you'll need to click through to set up a cookie if your first time in).
> There have been plenty of these HF object placement scenes done before.

-- 
I would've gotten away with it too, if it wasn't for those pesky kids!

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