Hi Toni,
Antonio Bleile wrote:
> Hi,
>
> what about Shadow Volumes in OpenSG 2.0? If I
> remember correctly someone was suggesting that
> as a new feature for OpenSG 2.0 in the past.
> Is anybody actually planning to add that? I saw
> that feature in GizomSDK, very nice!
Shadow volumes need either a shader composition framework, which Gerrit
is working on, or pretty fine control over the geometry, or be pretty
intrusive by changing te geometry to the format needed. I don't know
which one of these Gizmo does.
In general shadow maps are more efficient (IMHO), unless you put serious
effort into optimizing the shadow volumes. There was anice paper at the
I3D a few years ago that looked very good, but quite a bit of effort.
The only big advantage is the quality of volumes, they are very sharp
shadows. But with good map algorithms like the new ShadowViewport you
can get pretty good quality, too.
> http://www.gizmosdk.com/
>
> Speaking of gizmo... Did you see the new "clustering"
> support? It's not as smart as OpenSG's but they are
> catching up!
I couldn't find anything about that. They do support multipage TerraPage
servers now, but that's just for data paging and has nothing to do with
the scenegraph per se. Can you point at some information about that?
Dirk
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