4 replies to this topic

[Ostap]

Did anybody noticed slow performance in the new "Source Volume"?
Perhaps only in my case this is going on?

[rafaelfs]

Yes, it can be quite slow. Once I get the source performance I want I generally cache it before running my sims.
I think it's bound to be slow because it generates volumes from geometry and that, depending on the sample distance, can be quite expensive.

Also, you might want to start with a higher sampling distance, and reduce it in steps until you find a good performance/speed compromise.

Not sure what else can be done about it though...

cheers

Edited by rafaelfs, 19 June 2012 - 09:15 AM.

[Netvudu]

I don´t think it really is slow. I do think it does a whole lot of things and that comes at a price!!

IMHO the importance of proper fluid sourcing can´t never be stressed enough...

Edited by Netvudu, 19 June 2012 - 10:25 AM.

[rafaelfs]

Netvudu, on 19 June 2012 - 10:24 AM, said:

I don´t think it really is slow. I do think it does a whole lot of things and that comes at a price!!

IMHO the importance of proper fluid sourcing can´t never be stressed enough...

Yes, I didn't mean it in a sense of inefficiency...
It's actually a great node!

[riviera]

rafaelfs, on 19 June 2012 - 11:36 AM, said:

Yes, I didn't mean it in a sense of inefficiency...
It's actually a great node!

For one thing, it IS inefficient (and inaccurate) when using with particle fluids, especially if you want to emit fluid from the surface of a geometry. (I ended up creating an own fluid emitter asset). It can also be inaccurate when inheriting attributes from the source geometry (e.g. per-point velocity).