What would directly tell people what the slider does is a ground outline on the terrain showing how far away items will be shown (similar to property lines ie shown directly on the ground). Along with things starting to appear or vanish as they play with the slider, there should be no confusion about the function.
Along with that, provide a tooltip explaining the more area you see, the slower things will run. If you want to cover the case of people flying or in a skybox, do it as a temporary horizontal ~50% opaque red circle centered on the avatar, which persists for several seconds after moving the slider. _______________________________________________ Policies and (un)subscribe information available here: http://wiki.secondlife.com/wiki/OpenSource-Dev Please read the policies before posting to keep unmoderated posting privileges