Jump to content

SDF calculation takes for ever (Smoke Sim)


luthio1

Recommended Posts

Hello everyone,

I have some serious problems with the simulation time of my Smoke. Suddenly, from frame 69 to frame 70 the SDF calculation for the density source is taking for ever.
But there are no major changes in the source geometry. The normal SDF calculation time ranges between several seconds but starting at frame 70 it takes 20min plus.

 

(The source is the geometry from a fractured bulding)

Where sould i start to look for a solution?

Thank you in advance,

Lukas

Link to comment
Share on other sites

Performance Monitor. Find which node is taking all the time then trace back from there.

 

On the other hand you might be hitting swap.

Are you playing back the sim from the play bar watching the results in the viewport? You may want to render out the volume geo from the DOP Import SOP or fire off a flip book. Both of these options will evaluate the sim without it caching the results to memory for scrubbable playback.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...