Particles at a character's vertices

Hello,

I am trying to create a seemingly simple effect: I want to have a particle at each of my character's vertices, so that these particles alone could indicate the character's posture. However, when I set the particles' position to the mesh's vertices', the "particle character" is always in a T-Pose, no matter the pose of the actual character. What may I be missing here, can someone point me in the right direction?



Here's my code:

Code (CSharp):

1.  
2.     [SerializeField]
3.     SkinnedMeshRenderer skin;
4.     Mesh mesh;
5.  
6.     ParticleSystem ps1;
7.     ParticleSystem.MainModule ps1Main;
8.     ParticleSystemRenderer ps1Ren;
9.     ParticleSystem.EmissionModule ps1Emi;
10.     public Material mat1;
11.     int max; // number of particles to spawn
12.  
13.     // Use this for initialization
14.     void Start () {
15.         mesh = (Mesh)Instantiate(skin.sharedMesh);
16.         skin.sharedMesh = mesh;
17.  
18.         max = mesh.vertices.Length;
19.  
20.         // initialize particle system
21.         gameObject.AddComponent<ParticleSystem>();
22.         ps1 = this.GetComponent<ParticleSystem>();
23.         ps1Main = ps1.main;
24.  
25.         ps1Main.loop = false;
26.         ps1Main.startLifetime = 10;
27.         ps1Main.maxParticles = max;
28.         ps1Main.simulationSpace = ParticleSystemSimulationSpace.World;
29.         ps1Main.startSpeed = 0f;
30.         ps1Main.startSize = 0.02f;
31.  
32.         ps1Ren = this.GetComponent<ParticleSystemRenderer>();
33.         ps1Ren.material = mat1;
34.  
35.         ps1Emi = ps1.emission;
36.         ps1Emi.enabled = true;
37.         ps1Emi.rateOverTime = max;
38.  
39.     }
40.    
41.     void LateUpdate () {
42.         // mesh = (Mesh)Instantiate(skin.sharedMesh); // no use
43.  
44.         ParticleSystem.Particle[] particles = new ParticleSystem.Particle[ps1.particleCount];
45.         int count = ps1.GetParticles(particles);
46.         for (int i = 0; i < particles.Length; i++)
47.         {
48.             particles[i].position = transform.TransformPoint(mesh.vertices[i]);
49.         }
50.         ps1.SetParticles(particles, count);
51.     }

 

You need to get the current mesh based on the bone positions.
You can get this with BakeMesh

https://docs.unity3d.com/ScriptReference/SkinnedMeshRenderer.BakeMesh.html

You need to do this every frame before setting the particles.

 

Thanks Lennart and karl_jones, that worked! For the record, I now begin every LateUpdate()-loop with:

Code (CSharp):

1.         mesh = new Mesh();
2.         skin.BakeMesh(mesh);