The present invention includes a method of preparing a ceramic precursor article, the ceramic precursor made thereby, a method of making a ceramic article and an article made by that method. The optical circulator includes a first port coupled to the seed source, a second port, and a third port. A system accessed through the portal receives requests for accessing network resources associated with the system’s applications and resources. The residual layer is split and encoded as a sample depth residual layer bitstream and a chroma high-pass residual layer bitstream.