Rob.. OK. So when you delete a particle you mark it for deletion and move it away to some way-out location where it cannot been seen, or set the vertices alpha to 0.
Then every now and then (50 frames?) you ClearSurface and get rid of the quads marked for deletion.
That right?
Then every now and then (50 frames?) you ClearSurface and get rid of the quads marked for deletion.
That right?