Jump to content

Grain sims don't respect Timescale?


Recommended Posts

Hi people -

I need a grain sim to happen, and then slow down in time and freeze. In other particle sims I just animate the Timescale on the solver to 0. For some reason it doesn't work with a grain sim. Please see attached. Is this a bug?

As a work around I've tried adding a POPDrag node, and animating it greater and greater, but that also never seems to bring the bloody grains to a halt!

Any advice greatly appreciated. Frankly I could do the same thing with just particles, but I love the clumping that grains does....

GrainTimeScaleFail.hipnc

Link to comment
Share on other sites

I noticed the same thing in the FLIP solver for H14. If you dive into the HDA look for TimeScale parameters on every single node. Some of them will be linked to the top level time scale via expressions and some may not. That is where the disconnect occurs. All the fields in the HDA may not be receiving the animated value. Each TimeScale field inside the HDA should also be set to Set Always instead of Default. When in Default mode TimeScale (or any parameter) is only evaluated on frame 1. Set Always causes the parameter to be evaluated on a frame-by-frame basis.

Edited by Atom
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...