Re: [Opensg-users] cluster with stereo and shadows

[Dirk R. <dre...@ia...>]

	Hi Toni,

Antonio Bleile wrote:
>> Yes, and it works fine with a MultiDisplayClusterWindow.
>> We are running our Cave with this and we have nice shadows.
> 
> How does that work with shadows? To calculate
> the shadow map one node of the cluster has to have
> all the geometry for the shadow map rendering. How's
> then the shadow map transferred to the other nodes?
> Isn't that a performance killer for clustering?

Well, you don't gain anything specific from using the cluster, as the 
Shadowmap needs to be computed on all servers (even though it's the 
same), but unless you have a hugely complex scene the transfer time (GPU 
mem->main mem->network->main mem->GPU mem) is going to be more expensive 
than just recomputing it.

I think Marcus' comment was more on 'being able to' than 'making optimal 
use of'. ;)

	Dirk