Thanks to LanuHum for the inspiration... I read his post with the words
"We can't" and "POV-Ray" on the same sentence, and I could not resist
the temptation. ;)

It's done with a sum of several f_ridged_mf() on a function
height_field, media for the water and CIE_Skylight.inc for the sky. It
could be saved as a mesh using HF_Square, but after some tests I decided
to stick to the "live" height_field version, as it parses much faster.

P.S.: The foam is still on the making...
--
jaime

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On 3/31/2016 7:35 PM, Jaime Vives Piqueres wrote:
> I could not resist
> the temptation. ;)

They remind me of my time before the mast. :-)

They are really quite good. :-D

-- 

Regards
     Stephen

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Am 31.03.2016 um 20:35 schrieb Jaime Vives Piqueres:
> Thanks to LanuHum for the inspiration... I read his post with the words
> "We can't" and "POV-Ray" on the same sentence, and I could not resist
> the temptation. ;)
> 
> It's done with a sum of several f_ridged_mf() on a function
> height_field, media for the water and CIE_Skylight.inc for the sky. It
> could be saved as a mesh using HF_Square, but after some tests I decided
> to stick to the "live" height_field version, as it parses much faster.
> 
> P.S.: The foam is still on the making...

I am freakin' impressed.

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El 31/03/16 a las 21:11, Stephen escribió:
> They remind me of my time before the mast. :-)
>
> They are really quite good. :-D

   If that's a compliment from a true seaman, then I must have nailed it!

   But well, I must admit I've myself observed the sea a lot, both from
the coast and offshore: I used to go fishing with my father a lot during
summer when I was young... I think he had a Taylor 50, IIRC.

--
jaime

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El 31/03/16 a las 21:13, clipka escribió:
> I am freakin' impressed.

   Thanks!

   It was relatively easy once I found a simple example of f_ridged_mf()
that I could understand (thanks to an old post from JGR). I just added
it four times to the function at decreasing scales with decreasing
weights. I used it in a similar vein as a normal too. The resolution of
the function HF is 8192x8192, and it just takes under 3 min. to parse.

   The color for the media was also easy: SeaGreen from colors.inc seemed
perfect at first try for both the scattering and the absorption.

--
jaime

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On 3/31/2016 10:00 PM, Jaime Vives Piqueres wrote:
> El 31/03/16 a las 21:11, Stephen escribió:
>> They remind me of my time before the mast. :-)
>>
>> They are really quite good. :-D
>
>    If that's a compliment from a true seaman, then I must have nailed it!
>

It is a compliment but not from a true seaman. I spent 16 years on 
offshore oil rigs though. Two of them on semi submersibles. I spent many 
an hour "wave watching". A glorious pastime almost as good as watching 
the gas flare off before it was legislated against.

Hmm! just remembered. I was a lifeboat coxswain for a few years. Does 
that count?

>    But well, I must admit I've myself observed the sea a lot, both from
> the coast and offshore: I used to go fishing with my father a lot during
> summer when I was young... I think he had a Taylor 50, IIRC.
>

There is something fascinating about watching the sea. Ever the same 
always different. From a helicopter, you can't tell how high you are, 
fractal it is.
If you can render white caps or foam crests I will be mightily impressed.


-- 

Regards
     Stephen

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El 31/03/16 a las 23:49, Stephen escribió:
> I spent 16 years on offshore oil rigs though.

   Well, then you must know how the sea looks almost as good as a true
seaman. :)


> There is something fascinating about watching the sea.

   Yes, just last weekend I was doing that. It was a beach with stones
instead sand, and looking at the pebbles was almost as fascinating.


> If you can render white caps or foam crests I will be mightily
> impressed.

   I'm on it, but it's not easy to get it convincing enough...

--
jaime

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On 3/31/2016 11:06 PM, Jaime Vives Piqueres wrote:
> El 31/03/16 a las 23:49, Stephen escribió:
>> I spent 16 years on offshore oil rigs though.
>
>    Well, then you must know how the sea looks almost as good as a true
> seaman. :)
>
>

Maybe better. I had a better view a hundred feet or so above the waves. 
We used to watch the supply boats disappear in the troughs. A fine view 
they got. Up and down, up and down. ;)

>> There is something fascinating about watching the sea.
>
>    Yes, just last weekend I was doing that. It was a beach with stones
> instead sand, and looking at the pebbles was almost as fascinating.
>
>

Oh yes. :-)
Are you on the Mediterranean or the Atlantic coast?

>> If you can render white caps or foam crests I will be mightily
>> impressed.
>
>    I'm on it, but it's not easy to get it convincing enough...
>

That I believe. I spent weeks trying to get a good result using Tek's 
isosurface, not very well. :(

http://www.tc-rtc.co.uk/portfolio/Stephen/366/index.html

-- 

Regards
     Stephen

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Very nice Jaime. I like the distance better than the foreground. I think 
foam will help. Maybe in the Caribbean the water is that clean, but not 
off New England. :)

Am 2016-03-31 17:49, also sprach Stephen:
> It is a compliment but not from a true seaman. I spent 16 years on
> offshore oil rigs though.

I worked on this tub http://www.mysticwhalercruises.com/

One job I hated was "Balaska! Polish the bell!".
Summer sun on the open water, I'd be stripped down to my cut-offs and 
bandana. I found out later the purpose was to draw the white pegs [1] 
out of their cabins below and they'd come hang out on deck and *not* 
watch me sweat. ;)

[1] On the cruise cabin assignment board in the land office, cabins were 
assigned by gender. White pegs were single women. We loved cruises with 
several white pegs...
-- 
dik

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On 31-3-2016 20:35, Jaime Vives Piqueres wrote:
> Thanks to LanuHum for the inspiration... I read his post with the words
> "We can't" and "POV-Ray" on the same sentence, and I could not resist
> the temptation. ;)
>
> It's done with a sum of several f_ridged_mf() on a function
> height_field, media for the water and CIE_Skylight.inc for the sky. It
> could be saved as a mesh using HF_Square, but after some tests I decided
> to stick to the "live" height_field version, as it parses much faster.
>
> P.S.: The foam is still on the making...
> --

You have hit it square on, Jaime!  Congrats indeed.


-- 
Thomas

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