Memory leak : thousands of mesh from the same model

Hello,

I have a scene with a 3D Model made on blender , it's a boss that fight with units.
Recently, I found at that my memory allocation for unity goes up 100 MB/s , so in like 100seconds I am pretty much 100% RAM with my computer. Sample from early scene :


Then it goes up and what I see, there is thousands of line of this model (it's my boss ingame). It's like every frames it add the model inside memory but why ? His animation change every line. I only have one gameobject of this type in my scene.

 

If it's being added then there is code that is Instantiating it or copying it. Check that you are not instantiating anything in update() or duplicating it.

 

Is there an easy way to know what script create this mesh?

I do not instantiate my boss because it's already in my scene.

 

Is any other script attached to the model? Can you post your code for the GameObject?

 

Is there any code that accesses the mesh filter? If you deactivate your boss object does the problem go away?

 

Make a copy of your scene and start deleting things in it until the mesh or something that causes the problem remains.

 

Are you doing anything with meshfilter.mesh? And are you reassigning to that?
I ran into this problem once with procedural mesh generation albeit I thought to have taken care to destroy the meshes I replace. Calling ".mesh" does produce a copy every time that mesh instance is accessed the first time (the intention is to allow per-instance editing of a mesh).
You gotta use ".sharedMesh" instead.
Similar with renderer.material -> renderer.sharedMaterial by the way.

 

Put debug logs, where you create meshes.

BTW, this is wrong sub forum.
General forum is not support forum.
Should be in scripting.

 

Thank you for your tips it was exactly that ! I have a script that scan mesh to add effect to the skin of the boss and it was that. The refreshrate was every frames so I changed it ! The script :

Code (CSharp):

1. public class SkinnedMeshToMesh : MonoBehaviour
2. {
3.     public SkinnedMeshRenderer skinnedMesh;
4.     public VisualEffect VFXGraph;
5.     public float refreshRate; // Was every frames
6.     void Start()
7.     {
8.         StartCoroutine (UpdateVFXGraph());
9.     }
10.  
11.     IEnumerator UpdateVFXGraph()
12.     {
13.         while (gameObject.activeSelf)
14.         {
15.             Mesh m = new Mesh();
16.             skinnedMesh.BakeMesh(m);
17.             Vector3[] vertices = m.vertices;
18.             Mesh m2 = new Mesh();
19.             m2.vertices = vertices;
20.  
21.             VFXGraph.SetMesh("Mesh", m2);
22.            
23.             yield return new WaitForSeconds (refreshRate);
24.         }
25.     }
26. }

 

You may not need to create new meshes each frame. Consider creating m and m2 outside of the while loop, then clearing them inside the loop before baking and assigning the vertices.