private void RebuildMesh()
{
if (Size.sqrMagnitude < Primitives.DefaultFloatTolerance)
{
return;
}
if (!_mesh)
{
_mesh = new Mesh();
}
var meshData = GeometryBuilder.BuildRectangle(Size, Plane);
_mesh.vertices = meshData.vertices.Select(v => v.Position).ToArray();
_mesh.uv = meshData.vertices.Select(v => v.Texcoord).ToArray();
_mesh.triangles = meshData.triangles.SelectMany(t => t.ToArray()).ToArray();
_mesh.RecalculateNormals();
MeshFilter.sharedMesh = _mesh;
}