Jump to content
Sign in to follow this  
n_boga

How do I optimize my SIM times when I add custom/ambient velocity into the sim??

Recommended Posts

Hi guys, first time asking a question here :).


So i have an object that is travelling a distance - The sim time without any additional user created velocity is about 30 minutes
I am using sparse pyro system for this
And whenever i try to add turbulent wind ( like the ambient wind on a stormy day) , the sim times increases exponentially ( 16+ hours and still going on )
I think that this is because, the velocities are being induced into the entire region rather than just the active region.
Is there a way to fix this?
By fix i mean - reduce the sim times and have the velocity only affect the active region? Please find the attached file for more reference.
Thanks in advance

test.hipnc

Share this post


Link to post
Share on other sites
Posted (edited)

I'm just guessing, I haven't used sparse much, but I bet your bottle neck is actually caused by the fact that you are animating the Center of the SmokeObject. With sparse, it will expand as needed. Right-Click Delete Channels. Also, you probably want to merge your source2 wind vel instead of advecting..?

Untitled-1.jpg

Edited by Atom

Share this post


Link to post
Share on other sites
Posted (edited)

Hi Atom, Thank you for replying. 

The sim time was 30 minutes in my actual file with the expression in the center but the logic makes sense. I should only center it on the first frame. 

I am not sure if this is how we compare performance - I have connected the custom velocity to all 3 inputs and i found different sim times. This is on the 25th frame :). I am sure it might change a lot over time depending on the way it moves.

Compare_SparsePyro.jpg

Edited by n_boga

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×