Problem with Collisions

[reinaldomoon]

Hi.

I'm having some doubts with one simulation I'm doing.

Let's see if someone can help

The point is one rat who's jumping into a cup filled with liquid.

When the rat is jumping and has contact with the liquid I felt like the collision was not the one it was supposed to be.

The geometry is point cached and I have my scene interaction object velocity in "per vertex" mode.

As it didn't work I tried with a version of the rat and keyframed it in translation and rotation to match the pointcached one and voilà !
the intercation started to feel like it should be.

Any ideas why this happen ?

Also i'd like to have more "waves" on my interaction, I mean I started with the water preset but it looks to viscous, even with viscosity is set to 0 ... any ideas ?

Resume: 1- Keyframed transform geometry work better than skinned in fluid interaction.

2- Liquid to viscous ....

[wxyz]

Did you add splashes?

[reinaldomoon]

Yep, I did.

[ivaylo.ivanov]

It seems that the per vertex velcoity was broken for objects that are not sources at some point (this bug is in the official build also).

As a work-around, make the rat geometry also a source. Set the "Discharge" to 0 and enable only the Velocity. As a bonus, you can tweak the velocity multiplier.

I will fix this in the nightlies.

[reinaldomoon]

Grrrrrrrrreat !!

It works !

I was messing around for a couple of days with this problem and thought that I was doing something wrong.

Actually, the trick to be able to Multiply the velocity is quite cool.

Hope we don't lose this "feature" when the bug is fixed

[reinaldomoon]

If you don't mind post something here when is fixed, please.
This way I won't have to check the nightlies everynite.