"Warp" <war### [at] tagpovrayorg> wrote in message 
news:45f70986@news.povray.org...
> Eric <[firstname]@theothersideofthenet.com> wrote:
>> There are many ways I've seen to simulate water, but all are really
>> illusions on a uniform surface.  So if you have a vertical surface coming
>> straight up out of the 'water', you get a perfectly straight line at the
>> intersection.  What options are there that will form actual 
>> height-ripples
>> in a surface?  I know of bump_map and height_field, all of which require 
>> an
>> image for the height field, but I'd rather not go that way.
>
>  Heightfields can be generated from user-defined functions.
>
> -- 
>                                                          - Warp

http://news.povray.org/povray.binaries.images/thread/%3Cweb.45d9a3a3e460fb2bc150d4c10%40news.povray.org%3E/

The water I use here is made in such a way.  The advantage of this too is 
that I can dynamically change the resolution of the heightfield whe I want, 
so I can give a low resolution to renfder faster while I'm testing other 
stuff in the scene and bump the resolution up high for a quality render.  If 
you'd like, I can post some example code for this tomorrow.

-tgq

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