Script access to "Ellipsoid" property on Emitter

Agreed, It should be accessible via script. I have a dust trail effect which I wanted to reuse for different shaped boulders and just adjust the radius of the particle emitter's ellipsoid but now it seems i will need to create a dust trail prefab for every size boulder and this rules out changing sizes of boulders by code because then the effects wouldn't work.

Hey there, I agree. I found this page while searching for unity change particle emitter ellipse , what a bummer! Now I have to start again, do some tests with mesh emitter and think about a scalable mesh that adds verts depending on size .... bummer =[

Thanks. First time I commented in this webpage so I'm new to the process.

No worries, most new users don't know about the comment system and that little button !

I have been playing around with this tonight, and have made a basic solution to create a mesh for a mesh emitter that is currently just a line, you give it a length and the space between each vert along that line, then the mesh emitter does its thing on each vert. It is basic but works. The next task, and much bigger, will be to create a sphere mesh to emit from, and then expose variables for the number of verts, and sphere XYZ dimensions hopefully replicating the effects of the ellipse settings in the ellipsoid emitter. Anyway, here's the code for the line emitter :

 #pragma strict
 import System.Collections.Generic;
 
 public var setLength : float = 5.0;
 public var spacing : float = 0.25;
 public var emitPerUnit : float = 10.0;
 private var theEmitter : ParticleEmitter;
 private var mesh : Mesh;
 private var vertsList : List.< Vector3 > = new List.< Vector3 >();
 
 function Start() 
 {
     theEmitter = GetComponent( ParticleEmitter );
     StartMesh();    
     //
     SetVerts( setLength );
     BuildMesh();
     SetEmitter();
 }
 
 function Update() {
     if ( Input.GetMouseButtonDown(0) ) {
         SetVerts( setLength );
         BuildMesh();
         SetEmitter();
     }
 }
 
 function SetEmitter() {
     theEmitter.maxEmission = theEmitter.minEmission = parseInt( setLength * emitPerUnit );
 }
 
 function SetVerts( theLength : float ) 
 {
     vertsList.Clear();    
     var count : int = parseInt( theLength / spacing );    
     for ( var i:int = 0; i < count; i ++ ) {
         vertsList.Add( Vector3( 0.0, 0.0, (i * spacing) ) );
     }
 }
 
 function StartMesh() {
     if ( !mesh ) {
         mesh = new Mesh();
         GetComponent(MeshFilter).mesh = mesh;
         mesh.name = "ParticleMesh";
     }
 }
 
 function BuildMesh() {
     mesh.Clear();
     mesh.vertices = vertsList.ToArray();
     var tris : int[] = new int[ vertsList.Count * 3 ];    
     for ( var v:int = 0; v < vertsList.Count; v ++ ) {
         tris[v] = Mathf.FloorToInt( v / 3.0 );
     }
     mesh.triangles = tris;
 }