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Has anyone managed to produce a satisfactory ocean surface? I am
looking for a means to depict a roiling, stormy sea with crashing
waves. I have been messing with height fields and have yet to get
anything worthwhile. Any suggestions?
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One solution is to generate a height field with superimposed sine waves. I
made some include files in the past, and found that the absence of arrays in
POV was quite a nuisance. Now 3.1 is alive, and my example is somewhat
obsolete.
Applied theory comes from ocean engineering. What you need to specify fro
the sea is the significant wave height and wave period, and some wave
spreading figure. This in formation is used to generate a Bretschneider
energy density spectrum. The latter is used to generate a 20 component wave
height spectrum. These wavelets are then aggregated into the final height
field. Wave spreading is not developed completely. Now, with arrays, this
could, and will, time permitting, be done.
When you are interested, let me know, and I can mail you the as-is right
away.
Frans
Scott Middleton heeft geschreven in bericht <35A6FC31.736000ED@pld.com>...
>Has anyone managed to produce a satisfactory ocean surface? I am
>looking for a means to depict a roiling, stormy sea with crashing
>waves. I have been messing with height fields and have yet to get
>anything worthwhile. Any suggestions?
>
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Thank you for your response. I am fascinated (if somewhat overwhelmed) by the
theory. I would greatly appreciate seeing the work you have done.
Thank you!
Scott Middleton
F.VERBAAS wrote:
> One solution is to generate a height field with superimposed sine waves. I
> made some include files in the past, and found that the absence of arrays in
> POV was quite a nuisance. Now 3.1 is alive, and my example is somewhat
> obsolete.
>
> Applied theory comes from ocean engineering. What you need to specify fro
> the sea is the significant wave height and wave period, and some wave
> spreading figure. This in formation is used to generate a Bretschneider
> energy density spectrum. The latter is used to generate a 20 component wave
> height spectrum. These wavelets are then aggregated into the final height
> field. Wave spreading is not developed completely. Now, with arrays, this
> could, and will, time permitting, be done.
>
> When you are interested, let me know, and I can mail you the as-is right
> away.
>
> Frans
>
> Scott Middleton heeft geschreven in bericht <35A6FC31.736000ED@pld.com>...
> >Has anyone managed to produce a satisfactory ocean surface? I am
> >looking for a means to depict a roiling, stormy sea with crashing
> >waves. I have been messing with height fields and have yet to get
> >anything worthwhile. Any suggestions?
> >
Post a reply to this message
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Thank you for your response. I am fascinated (if somewhat overwhelmed) by the
theory. I would greatly appreciate seeing the work you have done.
Thank you!
Scott Middleton
F.VERBAAS wrote:
> One solution is to generate a height field with superimposed sine waves. I
> made some include files in the past, and found that the absence of arrays in
> POV was quite a nuisance. Now 3.1 is alive, and my example is somewhat
> obsolete.
>
> Applied theory comes from ocean engineering. What you need to specify fro
> the sea is the significant wave height and wave period, and some wave
> spreading figure. This in formation is used to generate a Bretschneider
> energy density spectrum. The latter is used to generate a 20 component wave
> height spectrum. These wavelets are then aggregated into the final height
> field. Wave spreading is not developed completely. Now, with arrays, this
> could, and will, time permitting, be done.
>
> When you are interested, let me know, and I can mail you the as-is right
> away.
>
> Frans
>
> Scott Middleton heeft geschreven in bericht <35A6FC31.736000ED@pld.com>...
> >Has anyone managed to produce a satisfactory ocean surface? I am
> >looking for a means to depict a roiling, stormy sea with crashing
> >waves. I have been messing with height fields and have yet to get
> >anything worthwhile. Any suggestions?
> >
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