local myFrame = CreateFrame("Frame")
myFrame:SetScript("OnEvent", function(self, event, ...) self[event](self, event, ...) end)

myFrame:RegisterEvent("PLAYER_LOGIN")
function myFrame:PLAYER_LOGIN(...)
    SetCVar("cameradistancemaxfactor",4)
    SetCVar("bgloadthrottle",0)
    SetCVar("combatLogOn",0)
    SetCVar("CombatLogPeriodicSpells",0)

    COMBATLOG:SetScript("OnUpdate", nil)
    COMBATLOG:SetScript("OnEvent", nil)
    COMBATLOG:SetScript("OnShow", nil)
    COMBATLOG:UnregisterAllEvents()
    CombatLogUpdateFrame:SetScript("OnUpdate", nil)
    CombatLogUpdateFrame:UnregisterAllEvents()
end

myFrame:RegisterEvent("PLAYER_ENTERING_WORLD")
function myFrame:PLAYER_ENTERING_WORLD(...)
    local _, instanceType = IsInInstance()
    if instanceType == "raid" or instanceType == "arena" then
        SetCVar("farclip",400)
    elseif instanceType == "none"then
        SetCVar("farclip",1000)
    end
end