[DxDraw] Text wird nicht angezeigt

function render()
outputDebugString("render")
	for i, element in ipairs ( getElementsByType("object") ) do
	outputDebugString(tostring(isElement(element)))
		if isElement(element) and getElementData(element, "itemName") then
			outputDebugString("Ist Element")
			local wx,wy,wz = getElementPosition(element)
			local text = getElementData(element, "itemName")
			local höhe = getObjectScale ( element )
			local x,y,z = getScreenFromWorldPosition ( wx, wy, wz + höhe + 1 )
			local width = dxGetTextWidth ( text )
			local px,py,pz = getElementPosition(localPlayer)
			local entf = getDistanceBetweenPoints3D (px,py,pz,wx,wy,wz )
			--if entf then
				--if entf <= 50 then
					dxDrawText ( text, x, y, x, y, tocolor ( 0, 255, 0), 2, "arial" )
					outputDebugString("Drawing")
				--end
			--end
		end
	end
end


function startRender()
outputDebugString("renderStart")
addEventHandler("onClientRender", root, render)
end
addEventHandler("onClientPlayerJoin", getRootElement(), startRender)