I am working on a bartending simulator in VR, and my current goal is to allow players to capture fluids in glasses as well as pour them out. I've decided to represent liquid volumes within containers with a shader, so I count and remove fluid particles when they enter the glass. When the user tilts the glass far enough, I emit new fluid particles to represent the contained liquid emptying from the edge of the glass until the glass is "empty."

I'm having issues producing consistent results. I know that emitters aren't designed to produce specific numbers of particles, which is fine, but controlling the rate via time doesn't seem to be producing the amount of volume I expect. I'm hoping to remove and recreate the same volume of fluid with 95% or more accuracy.



So, a two part problem:

1. Is there an easy way to calculate the volume of a fluid when its particles interact with a collider?
   
2. Can a known volume of fluid be reliably created when controlling an emitter's rate/duration/shape?
   

Hey, so I have a simple character rigged along with a shirt that's also rigged. Each are separate, and both have an animator component with the same animator controller, using the character's avatar for both the character and shirt. When I play the scene the looping walk cycle plays on both skinned meshes correctly. Great.

Both of those are added to a parent game object called NPC. On the NPC game object I have the Obi Solver. on the Skinned Mesh Renderer for the shirt I have Obi SkinnedCloth and Obi Skinned Cloth Renderer. When I play the scene the cloth behaves as expected, with clipping of course since I haven't played around with the settings.

I've installed the Unity Git Hub link for SDF:
https://github.com/Unity-Technologies/co...esh-to-sdf

I created a Game Object called SDF Texture, and assigned the SDF Texture script. I duplicated the SDFTexture-SkinnedMesh texture from the Git Hub example scene, and assigned that to the SDF Texture game object. Next, on my characters Skinned Mesh Renderer, I added a Mesh to SDF script, and assigned that duplicated texture.

After all of that I'm at a loss as to what the next steps would be. Is there a video on how to do this? If not, could you advise me on what I need to do next please? 

Thanks!

Hello,

I’m setting up an environment to use Obi version 7.

In Obi 7, as shown in the attached images:

• Parent Object - configured with the solver.
• Child Object 1 - configured with the mesh collider and Obi collider.
• Child Object 2 (cloth) - configured with Obi skinned cloth and Obi skinned cloth renderer.

I completed the above three settings.

However, when I run it, the cloth object does not render and appears transparent.

I also re-generated the skinned cloth blueprint file and mapped everything as shown in the attached images. Do you know why it’s not rendering?

regards

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Hello.
I’m currently working on a project using Obi Cloth and need some help, so I'm reaching out.
The structure of the objects is as follows:

1. Objects with fixed update
   
   2. Mesh 1 with an Obi Collider set
      
   3. Game object with a solver applied
      
      3. Object with skinned cloth set
         
   5. Game object with a solver applied
      
      3. Object with skinned cloth set
         

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Reposting because (a) nobody responded the first post and (b) I've made some progress so there's a lot of old info that doesn't matter anymore.

I have some virtual garments on a character model, generated using Obi Cloth version 7.0.3. The garments function fine in the editor (2022.3.51f1) and in a Windows build, but when I run the app on Android the garments explode and burst off the character.

I tested by making a blank project, setting up a single cloth piece and letting it run, and that seemed to function fine when built to Android. So it's not an inherent problem with using it on Android.

So what parts of the cloth generation/simulation could change based on the target platform, despite having the exact same settings? Mobile platforms would obviously have lowered performance, but that should just manifest as lag and stuttering rather than the cloth behaving in a completely different manner.

I'm going to try selectively disabling and re-enabling parts of the actual project, most likely in a blank scene, until I figure out what's causing it, but I also figured I'd ask here in case there's a simpler solution I haven't thought of.

Thanks!

Hi,
I'm using Obi Fluid 7.0.3 with Unity URP 2022.3.14f1 to create a game for Oculus Quest 2/3.
The problem is that the fluid always appears opaque. I read that Obi Fluid supposedly doesn’t fully support URP, but aside from the transparency issue, it seems okay (or at least sufficient for my needs). However, transparency is indeed the main issue.
I've added an Obi Fluid Renderer Feature with Passes where the Material Type is set to Transparent. It shows up as transparent in the editor but not in the build.
Is this issue unsolvable? Are there any custom materials or something that could help?

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I'm trying to see if I can use OBI to allow for cloth grab on skinned characters. I've seen your proxies video which is a bit old, and it seems like that version of OBI Cloth only works with static meshes:
https://www.youtube.com/watch?v=IWXSJJAu...JQ&index=7

I stumbled upon this video which they claim that they using OBI cloth for their setup. And since it was posted 6 months ago I thought there might have been an update to OBI which allow that:
https://www.youtube.com/watch?v=mpKB8z-l...O1nHu2YBhQ

Any thoughts or suggestions of how to do that would be greatly appreciated. Thanks!

I want to ask currently if we stretch a rope it doesn't change its length but is there any built-in method that allows auto extension of rope length on stretching? For example if we pull the rope using an attachment and stretch it, is there anyway it increases its length automatically instead of stretching too far?

I upgraded to Obi Cloth 7.0.3, from 6.5.4. I'm using Unity 2021.3.3f1. 

After fixing some compile errors (and deleting and reinstalling the entire package to prevent compile errors from improper importation), the fabric simulation is far more performant. But while the fabric simulates the same as before in the editor, when I built and tested on Android, the created garments would ‘explode’ and burst away from the mannequin at a high velocity.

I know this kind of glitch is common with fabric simulations, but I’m not sure how the differing platforms could cause this error, so I don’t want to make changes to the many existing settings.

It’s possible that this is an ‘editor vs. build’ thing, rather than a ‘Windows vs. mobile’ thing. I tried making a Windows build to test, and it initially failed due to some shader errors in Shader Graphs/ParticleShader, but after deleting the whole package and reimporting it, it built successfully to Windows (where the fabric didn't glitch out). However, this now meant that the compiling failed when trying to build to Android, with the same ParticleShader errors (plus one more). I'll list them here: