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Dose anybody has other learing resources about osgOcean?


 
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wyh891205
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Joined: 26 Mar 2012
Posts: 4

PostPosted: Fri Apr 06, 2012 7:02 am    Post subject:
Dose anybody has other learing resources about osgOcean?
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Hi,
I find it difficult to learn the osgOcean by reading the source code only. In addition, the document of this code is not very specific.

So, I need some other guidebook or some similar documents, which can help me to understand the osgOcean quickly(No special detailed).

Thank you!

Cheers,
Han Wang
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kcbale
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Joined: 04 Mar 2011
Posts: 68

PostPosted: Thu Apr 12, 2012 12:40 pm    Post subject:
Dose anybody has other learing resources about osgOcean?
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Hi Han,

I'm the author of the code, if you can be more specific about what you want to know maybe I can help you.


There isn't any documentation, only the example program to guide your way I'm afraid.


Regards,


Kim.


On 6 April 2012 08:02, Han Wang < (
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)> wrote:
Quote:
Hi,
I find it difficult to learn the osgOcean by reading the source code only. In addition, the document of this code is not very specific.

 So, I need some other guidebook or some similar documents, which can help me to understand the  osgOcean quickly(No special detailed).

Thank you!

Cheers,
Han Wang

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wyh891205
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Joined: 26 Mar 2012
Posts: 4

PostPosted: Sun Apr 15, 2012 12:53 pm    Post subject:
Re: Dose anybody has other learing resources about osgOcean?
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Hi, Kim,

Thanks for your help.

I will try to read the code myself. If I meet some problems that make me confused, I'll send massage to you for help.

Regards,

Han


kcbale wrote:
Hi Han,

I'm the author of the code, if you can be more specific about what you want to know maybe I can help you.


There isn't any documentation, only the example program to guide your way I'm afraid.


Regards,


Kim.


On 6 April 2012 08:02, Han Wang < (
Only registered users can see emails on this board!
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)> wrote:
Quote:
Hi,
I find it difficult to learn the osgOcean by reading the source code only. In addition, the document of this code is not very specific.

 So, I need some other guidebook or some similar documents, which can help me to understand the  osgOcean quickly(No special detailed).

Thank you!

Cheers,
Han Wang

------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=46894#46894





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bcolbert (Brad Colbert)
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Joined: 24 May 2012
Posts: 30

PostPosted: Thu May 24, 2012 5:12 pm    Post subject:
osgOcean information
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Hi Kim,

I too am looking for resources about some specifics on osgOcean.

Generally, what is the ratio of wind speed to wave height? Is there a "simple" function for this? I want to be able to model certain wave heights and, as I understand it, this is driven by wind speed.

Are the top/bottom wave colors derived by hand or from a publication? If a publication, which? (Same question for the lighting color)

I'm trying to gain an understanding of the size of the OceanScene (tiles). Looking at the bounding sphere it starts out at roughly 12000x12000 (is that meters?) When setting the parameters for osgOcean::FFTOceanSurface (gridsize, resolution, numtiles) to values other than what is in the example results in some pretty rough artifacts. Is there a rule of thumb for setting these values?


Thank you!

Cheers,
Brad
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kcbale
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Joined: 04 Mar 2011
Posts: 68

PostPosted: Fri May 25, 2012 6:26 pm    Post subject:
Dose anybody has other learing resources about osgOcean?
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Hi Brad,

I've tried to document the FFTSimulation as well as possible if you look at the source, at least in the trunk you should see an explanation of units etc and the paper it was based on.


http://code.google.com/p/osgocean/source/browse/trunk/src/osgOcean/FFTSimulation.cpp 


Here is the most up to date version of the paper, well worth a read if you're interested in understanding it fully.


http://evasion.imag.fr/Membres/Fabrice.Neyret/NaturalScenes/fluids/water/waves/fluids-nuages/waves/Jonathan/articlesCG/simulating-ocean-water-01.pdf 


I should point out that a lot of tweaks were made to make it look aesthetically pleasing, it's not an ocean simulation more of a statistical approximation. 


Any further questions do get let me know.


Regards,


Kim.

On 24 May 2012 18:12, Brad Colbert < (
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)> wrote:
Quote:
Hi Kim,

I too am looking for resources about some specifics on osgOcean.

Generally, what is the ratio of wind speed to wave height?  Is there a "simple" function for this?  I want to be able to model certain wave heights and, as I understand it, this is driven by wind speed.

Are the top/bottom wave colors derived by hand or from a publication?  If a publication, which?  (Same question for the lighting color)

I'm trying to gain an understanding of the size of the OceanScene (tiles).  Looking at the bounding sphere it starts out at roughly 12000x12000 (is that meters?)  When setting the parameters for osgOcean::FFTOceanSurface (gridsize, resolution, numtiles) to values other than what is in the example results in some pretty rough artifacts.  Is there a rule of thumb for setting these values?


Thank you!

Cheers,
Brad

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osgOcean - http://code.google.com/p/osgocean/

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bcolbert (Brad Colbert)
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Joined: 24 May 2012
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PostPosted: Fri Jun 01, 2012 7:44 pm    Post subject:
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Hi Kim,

Thanks for your response. I appreciate the paper and will give it a read.

...


Thank you!

Cheers,
Brad
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Rambabu
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Joined: 10 Nov 2016
Posts: 99

PostPosted: Tue Nov 22, 2016 6:34 am    Post subject:
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Hi,Can anyone have the source code of latest version of osg ocean (except osg ocean 1.0).

...


Thank you!

Cheers,
Rambabu
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Alberto Luaces
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PostPosted: Tue Nov 22, 2016 10:26 am    Post subject:
Dose anybody has other learing resources about osgOcean?
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"Rambabu Repaka" writes:

Quote:
Hi,Can anyone have the source code of latest version of osg ocean (except osg ocean 1.0).

Hi Rambabu, inspecting the available forks in github, there is one that
seems to be updated at least to OSG 3.4.0, though I have not personally
tried it:

https://github.com/repagh/osgocean

--
Alberto



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