Vellum grain instability

[davidyannick]

I've just made a vellum grain sim and as you can see grains are not stables at all, any idea please ?

Thanks

2021-02-28_17-30-02.mkv

Yoda_Grain-1.2.hiplc

[ryew]

The .hip file is missing the geometry you're using so it can't be looked at right now

Based on the buzzing noise in the movie you attached, have you verified it is the grains themselves moving (too far away to tell in the movie) and it isn't render artifacts from Redshift you are seeing?

[davidyannick]

16 minutes ago, ryew said:

The .hip file is missing the geometry you're using so it can't be looked at right now

Based on the buzzing noise in the movie you attached, have you verified it is the grains themselves moving (too far away to tell in the movie) and it isn't render artifacts from Redshift you are seeing?

Here is the geo https://www.dropbox.com/t/fHObRL0U37iaZa4Z

I don't think it a redshift problem, thanks for your help

[ryew]

Until the collider starts moving the grains, I see no movement at all; attribute spreadsheet confirms total 0's for velocity as well.  Using v18.5.351 if that makes a difference.

[davidyannick]

15 minutes ago, ryew said:

Until the collider starts moving the grains, I see no movement at all; attribute spreadsheet confirms total 0's for velocity as well.  Using v18.5.351 if that makes a difference.

ok gonna test with other render engines thanks for your help