/// <summary>
/// Process meshFilters in Unity's main thread, as we are required to by Unity. At least we've rigged it as a
/// coroutine! Right? OK I know I really wish we could have used mesh data in a thread but properties die as well.
/// </summary>
/// <returns>IEnumartor aka Coroutine</returns>
/// <remarks>
/// For the sake of the demo we are going to need to roll over the "Target" to find all the
/// meshes that we need to look at, but in theory you could do this without having to load the
/// object by simply having raw mesh data, or any other means of accessing it.
/// </remarks>
public IEnumerator PreProcess()
{
_combinerStartTime = Time.time;
// Create a new MeshCombiner (we dont want any old data kicking around)
_meshCombiner = new Hydrogen.Threading.Jobs.MeshCombiner();
// Yes We Hate This - There Are Better Implementations
MeshFilter[] meshFilters = TargetMeshes.GetComponentsInChildren <MeshFilter> ();
// Loop through all of our mesh filters and add them to the combiner to be combined.
for (int x = 0; x < meshFilters.Length; x++)
{
if (meshFilters [x].gameObject.activeSelf)
{
_meshCombiner.AddMesh(meshFilters [x],
meshFilters [x].GetComponent <Renderer>(),
meshFilters [x].transform.localToWorldMatrix);
}
// We implemented this as a balance point to try and break some of the processing up.
// If we were to yield every pass it was taking to long to do nothing.
if (x > 0 && x % ThrottleRate == 0)
{
yield return(new WaitForEndOfFrame());
}
}
// Start the threaded love
if (_meshCombiner.MeshInputCount > 0)
{
_meshCombiner.Combine(ThreadCallback);
}
yield return(new WaitForEndOfFrame());
}