[osg-users] [osgOcean] Wake effects?

Kim Bale kcbale at googlemail.com
Fri Nov 20 01:31:29 PST 2009


Oh.. and was the attached image supposed to be in 8 bit colour? Are
you running osgocean on a zx 81 or something? ;)

K.



2009/11/20 Kim Bale <kcbale at googlemail.com>:
> Hello Erik,
>
> Sorry I missed your post yesterday. There isn't really any support for
> wakes on the sea surface at the moment, although it's definitely
> something that needs addressing.
>
> However, I just had a submission which uses the depth buffer to add
> breaking foam to the shoreline. This does sort for work for other
> objects on sea, like ships, but it doesn't look very pretty at the
> moment. You're more than welcome to have a play with the effect and
> see if you can do anything with it. From what I understand what you'd
> need to do is add a sort of sloped geometry which tracks you your
> boat, that would get picked up in the depth buffer and the same foam
> texture used on the wave crests is applied to it.
>
> It's been checked into the trunk, but like I say it needs a little work.
>
> There was a discussion about it here:
>
> http://thread.gmane.org/gmane.comp.graphics.openscenegraph.cvs/6252
>
> Cheers.
>
> Kim.
>
>
>
> 2009/11/18 Erik Johnson <r.erik.johnson at gmail.com>:
>> Hi,
>>
>> I thought this would have come up before, but does anyone have suggestions how to render a boat's wake?  Using osgParticle provides an "ok" solution, but falls apart rapidly if the ocean waves are too large (the particles go underwater).
>>
>> Would be cool to leverage the same texturing effects as the "wave crest foam" stuff - just not sure how.  :)
>>
>> Thanks for any suggestions,
>> Erik
>>
>> ------------------
>> Read this topic online here:
>> http://forum.openscenegraph.org/viewtopic.php?p=19849#19849
>>
>>
>>
>>
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>>
>>
>


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