create a Unity mesh with UV texture coordinates

makeTriangles3.js

#pragma strict

// Script to create a mesh with 2 triangles with texture coordinates (UV).
// This expects to be attached to a GameObject that already has a mesh
// and material (such as a sphere), so that you can assign the texture
// through the Unity editor, instead of here in the code
// It uses the mesh's Clear() function to erase the old geometry before
// creating the triangles.

function Start ()
    {
    var p0 : Vector3 = Vector3(-1,0,-1);
    var p1 : Vector3 = Vector3(0,1,-1);
    var p2 : Vector3 = Vector3(1,0,-1);
    var p3 : Vector3 = Vector3(0, -1,-1);
    var newVertices = [ p0, p1, p2, p3 ];
    var newUV = [ Vector2(0,0.5), Vector2(0.5,1), Vector2(1,0.5), Vector2(0.5,0) ];
    var newTriangles = [ 0, 1, 2, 2, 3, 0 ];
    var m = GetComponent.<MeshFilter>().mesh;
    m.Clear();
    m.vertices = newVertices;
    m.uv = newUV;
    m.triangles = newTriangles;
    m.RecalculateNormals();
    }


function Update()
    {
    }