Using MeshTopology.Points with Mesh

[ina]

How do you actually use MeshTopology.points (where you have a vert list of millions of points) with Mesh? Is it possible to assign MeshTopology to distinct gameobjects and not just have it be in buffer noly?

[Brian-Kehrer]

You have to construct the mesh yourself. When you call SetIndices, MeshTopology is an optional parameter.

function SetIndices (indices : int, topology : MeshTopology, submesh : int) : void
http://docs.unity3d.com/Documentation/ScriptReference/Mesh.SetIndices.html

You could write a quick script that read the mesh indices from a mesh filter, created a new mesh, created new indicies based on the old ones, and reassigned the mesh.

EDIT:

Both those are relatively straightforward. For creation - see below… You can get the bounds to add a simple collider. More than that, well, you can write a voxel raytracing solution…

void Start(){

		int vertexCount = 1000;
		Vector3[] vertices = new Vector3[vertexCount];

		int[] indices = new int[vertexCount];

		for(int i=0; i<vertexCount; i++){
			vertices *= new Vector3(Random.value, Random.value, Random.value);*

_ indices = i;_
* }*

* Mesh m = new Mesh();*
* m.vertices = vertices;*
* m.SetIndices(indices, MeshTopology.Points, 0);*
* m.RecalculateBounds();*

* MeshFilter mf = GetComponent();*
* mf.mesh = m;*
* Debug.Log(m.bounds);*
* }*