Hi Zoltan,
There is osgShadow, but it's rather short on examples. Or
may-be I haven't seen them ?
The example is called osgshadow... ;-)
In short, it's pretty simple:
1. Your root node (or the root node of the subgraph which you want to
have shadows) should be an osgShadow::ShadowedScene (subclass of
osg::Group).
2. Instantiate the shadow technique you want (for example
osgShadow::ShadowMap) and set it as the shadow technique on your
shadowed scene (scene->setShadowTechnique(...)).
In your case, for an airplane flying over a large terrain, if you use
osgShadow::ShadowMap you will have lots of shadow map aliasing. For now,
ShadowMap is not view dependent, so it uses the scene bounds (or the
light frustum for a spot light), which will be very large in your case.
As a first step, you could disable shadows for everything but your
airplane (for example, shadowedScene->setCastsShadowTraversalMask(0x01)
and then give all your objects but your airplane a ~0x01 node mask).
Perhaps others will have better suggestions.
Keep in mind that osgShadow::ShadowVolume does not really work yet (at
least I haven't seen it work, maybe it does in some cases). So I would
use ShadowMap with the workaround above.
Hope this helps,
J-S
--
______________________________________________________
Jean-Sebastien Guay [EMAIL PROTECTED]
http://www.cm-labs.com/
http://whitestar02.webhop.org/
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