Here I am showing you the particles with Aperture 2, and maybe I'll put out an alpha build of Sortal.
This is a Small Test (not the Mod : Sortal) you can play this Test on Portal.
You Opening the .rar File and go to SortalTestMaps and you can see Materials,Sounds,Scripts and more
this folder´s copy and paste to this Steam\SteamApps\SteamName\portal\portal.
and go to Portal and write in your Console Map SortalTestMaps.
and have Small Fun :D