Any idea why my 3D rectangle is not rendering?

[AlvarO]

I used all the info that wiki shows, and I don't have anything:

 

local dot = dxCreateTexture(1, 1)
function dxDrawRectangle3D(x,y,z,w,h,c,r,...)
        local lx, ly, lz = x+w, y+h, (z+tonumber(r or 0)) or z
	return dxDrawMaterialLine3D(x,y,z, lx, ly, lz, dot, h, c or tocolor(255,255,255,255), ...)
end

addEventHandler("onClientRender", root,
    function()
        dxDrawRectangle3D(0,0, 30, 100, 100, tocolor(255,255,255,255))
    end
)