I tried to Compute backend, and my Unity editor started freezing occasionally when I got into Play mode. When it happens the GPU usage is at 100% and there is no way to unfreeze it except killing the whole process.

Switching back to Burst seems to fix it.

It's quite hard to provide a set of steps to reproduce, since it only happens occasionally, but it's a bad enough to make Compute completely unusable for me.

It happens even with a minimum project:

https://drive.google.com/file/d/1o9kf_fv...sp=sharing

Hi


I am having trouble rigging my character that has a bunch of submeshes(internal organs in this case). I manage to get other simpler meshes to work properly with softbody but something is breaking when I do it with my complex character.




Going by the "Elastic character" tutorial does not really apply as the elastic character only has one main mesh.




I will provide some screenshots. I have the default ObiSolver component on the "FemaleBody" Object. This is a medical app btw.

It seems that decreasing speed doesn't just make the flow slower, but also makes it discontinuous:

Speed = 1:

   

Speed = 0.5:

   

Any tip on how to make slow but steady and continuous stream?

I'm a bit confused about what this "Generate" button is for. It seems the changes on parameters take effect without using this button. When do I need to press it?

The volume constraint's document is a little bit of confusing to me:

Quote:Volume constraints can be used to simulate some sort of softbody physics, though they are not suitable for very stiff softbodies. Volume constraints are better suited for very soft, blobby bodies like a partially deflated beach ball and, in the case of cloth, they require the cloth mesh to be closed (that is, no holes on it).

This question may not be related to obi.

How do I make an Obi Fluid liquid translucent?

Lowering the alpha of ParticleColor in ObiParticleRenderer will not change the appearance.
For example, if you want to make an appropriate 3D model translucent, create an appropriate material, set REnderingMode to Fade, and change the alpha of Color to translucent.

In the same way, we are seeking to change the Color setting to make it translucent.

How can we describe a very sticky liquid, like oil?

For example, something that takes a very long time to fall when it hits a vertical wall.

First, I set Viscosity to 2, using this page as a reference.
http://obi.virtualmethodstudio.com/manua...rials.html

There was indeed a change, but it is still not enough.

Next, I changed the Gravity of the Buoyancy and Obi Solver so that it takes longer to fall.
These are fine if only a little, but changing them significantly can cause undesirable visual effects, such as slower falling speeds.


Therefore, I would like to know if there are any other parameters other than these that would affect the stickiness if changed.

My use case is that I'm working on my own custom fluid shader. The workflow is tedious: Press Play -> Wait for the simulation until the fluid gets to a certain shape I'd like to inspect the shader for -> Tweak the shader.

I figured that if I dump the mesh from BurstFluidMesherSystem as an Unity asset, it would make iterating on the shader much faster. So I added this API:

When the "Skeleton Sampling" is enabling when generating particles from the softbody blueprint editor, the generated particles since to move along with the bones. My questions are:

1. What's the constraint taking place here? Distance? Pin? Shape matching?

2. Can I disable it? In other words, I'd like the particles to be generated at the positions of the bones, but I'd like them to work just like volume particles and surface particles: bound to other particles by shape matching constraints, but not bound to the bone.

It seems that Obi renderers randomly stop working when the "Pause" button is pressed in Unity editor.



Please take a look at this video. The fluid just disappears and reappears randomly. Sometimes it works sometimes it doesn't.