Resolume Forum

Hi,
I'm writing about a problem i've always had but i'm wondering if there may be a way around it instead of just putting up with it...

I like to use the Gaussian Blur a lot when i VJ.
I use it on individual layers and on the whole composition, it's a really important part of my visual style.

However, it seems to always strain my CPU, because whenever i have blur active i always notice the playback becomes juddery and slow, and so the flow of the movement of the clips is compromised which is a real shame.
It even happens when i don't have many layers or other effects going on...

I wonder if there's another way to create a blur effect, or if by nature the Blur effect is hard work for the computer to generate?
Do other people have this problem too?

I use a macbook pro with solid state hard drive.
Many thanks,
Suzybee

I'd suggest blurring your footage before you put it in resolume, because yes, blur does slow things down.

Gaussian Blur is a computationally expensive operation. There are "cheaper" kinds of blur.

An interesting (though quite technical) discussion here...

An investigation of fast real-time GPU-based image blur algorithms
Submitted by FILIP S. (Intel) on Tue, Jul 15, 2014

https://software.intel.com/en-us/blogs/ ... algorithms

I don't have any FFGL effects to direct you to at this moment.

-spxl

Hi,
Thanks for the replies -i'll have a look at the article.
It would be great if some lovely programmer would create another Blur effect which is less draining for the computer to render... (just sayin )
Cheers!
Suzy

Get a better computer it will happen before someone programs a better blur. Most modern machines don't choke on it. I would suggest you dial down the blur quality first.

Thanks

You could always use the focus on the projector itself for processing free blurring...