Hi, I'm not a total newbie to 3D construction and scripting, but I am using Unity is anger, so to speak, for the first time with a project I'm working for. Most of my scripts do what i wanted them to do, and the models are looking ok, but everything seems very sluggish once it loads, especially in terms of reading input. I would welcome suggestions as to how I might optimise these scenes to run better in a browser. We will likely release PC and Mac stand-alones too, but the Webplayer is the main target platform. Happy to supply any information or post my scripts if it will help, but the scenes in question are here (may be up and down a bit with dev work going on). http://ww1centenary.oucs.ox.ac.uk/unity/gascloud/ http://www.dstx.co.uk/unity/hospital/ All the media used is under creative commons, list of sources also available on request. These scenes will form part of this project: http://ww1centenary.oucs.ox.ac.uk I'm also working on a scene depicting the extensive tunnel systems under some of the WW1 battlefields. This one is still quite spightly, but i haven't really started putting in the media yet. http://www.dstx.co.uk/unity/tunnel2/ Any advice, guidance, constructive criticism, or gratuitous sarcasm welcome.