- LampHalos can be rendered separately too. Just disable 'Solid' in a layer and keep 'Halo' option enabled. - Note that disabling 'Solid' will still fill in Z values for the solid faces, to provide occlusion information for the Ztransp and Halo layer options. The latter didn't work this way until now for OSA render. ALso note that that Ztransp+LampHalo still isn't good marriage... it renders a bit weird, but that's an old issue. :)