There isn't really anything specific to OSG that can help you with this.
I am working on underwater effects at the moment and most of my work has
been with shaders.
Tessendorf offers a fairly comprehensive guide to ocean rendering both
above and below water here:
http://graphics.ucsd.edu/courses/rendering/2005/jdewall/tessendorf.pdf
the papers he references in that cover most techniques.
The book, Shader X5 has a good section on creating god-rays using a
multi-pass technique.
Aside from that osgParticle gives you the framework to create a range of
particle effects such as plankton, silt on the seabed and bubbles.
Osg::Fog is also useful as a quick and easy underwater cue.
I also played around with multi-pass rendering and refraction shaders,
refracting images above water through the ocean surface and warping the
screen in general creating a kind of wobbly underwater feel.
I'm afraid I can't share any code, but if you're looking for
inspiration, take a look at the games BioShock or the underwater
sequences in Splinter Cell Double Agent, as it's where I gathered most
of my ideas from.
Hope that is of some help.
Kim.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Loong
Hin
Sent: 17 April 2008 01:38
To: osg-users@lists.openscenegraph.org
Subject: [osg-users] Create underwater effects
Hi,
Anyone has any ideas or sample codes in creating underwater effects
using OSG? Thanks a lot.
regards
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