Ok but I continue to use PT kernel for highest realism of lighting for no any limitation as universal rays because PHT kernel and Wave Optics(?) can't render any light reflected and/or refracted at glossy and/or specular non-roughness material(s). PHT only(?) may not render any variable caustics, if the roughness of glossy ground has less than 0.3~0.4.skientia wrote:That's prejudice and a bold assumption.
The discussion around caustics and PT is rather futile as Photon Tracing is available. It covers most end-user use cases in a relatively quite elegant and examplary way.
Can you understand this?