Mark Hanford wrote:
>I've been trying to make scene involving plowed fields, and am
>currently using a height-field made from a gradient-x pattern with a
>bit of tiny bozo noise over the top, all of which is then scaled
><1500,25,1000>.  This results in a nice rough brown ridged surface a
>bit like corrugated tin roofing /\/\/\/\/\/\.
>
>What I did next was ditch the hf, as I need a bit of hillysillyness,
>and use a squashed cylinder{-5000*x, 5000*x, 500} with the
>afforementioned gradient and bozo patterns to achieve a similar result
>as standing on a very small stripey cylindrical world, but without the
>pretty ploughed waves.
>
>What I'd really really like though, is a curved wavey surface, which
>my ailing mind is incapable of getting the function for.
>I assume it's some combination of
>function { sqrt(pow(x,2)- + pow(z,2)) - 1 }  (but rotated to
>horizontal)
>function { f_noise3d(?,?,?)}
>function { f_ridge?(?????)}
>
>
>I've tried combinations of these, but due to too much guesswork and
>not enough understanding (yet) of ISO's, I've been having trouble :(
>
>I might post an image in p.b.i if this makes no sense to anyone...
>
>many thanks,
>
>--
>Mark Hanford
>
>Putting POV code on the web? Make it look pretty with POV2HTML...
>http://www.hanfordonline.co.uk/povray
>


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