Hi Jung Lee,
Jung Lee wrote:
> I appreciate very much for your perfect answers, Mr. Neumann and Dr.
> Reiners. I am really impressed!
>
> Dr. Reiners, you mentioned about pros and cons to both input
> distribution used by VRJ and OpenSG's scenegraph synchronization for inputs.
> Could you please explain more about the pros and cons to them? I thought
> about them, but it was a little difficult for me to find out them.
>
Sure.
Input Distribution:
+ Minimal network usage
+ Works with pretty much unchanged application
- Application needs to be deterministic and dependent only on input,
otherwise needs manual code changes for synchronization
- All nodes need to be able to run full application, which can get
expensive for larger applications
- If external resources (likes files are databases) are accessed, they
will be accessed by each cluster node separately
Scenegraph Distribution a la OpenSG:
+ Only one application logic running: only one machine needs to strong
enough to run it
+ Can use dumb/small/cheaper rendering slaves, all application code on
master
- More network bandwidth: need to transfer all scenegraph changes
Hope it helps
Dirk
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