set pm3d depthorder
set palette rgb 9,9,2
unset colorbox 
set hidden3d
set parametric
set size square
set samples 36
set isosamples 20,36
set ticslevel 0
set view 70,170,1.1,1
set urange [0:pi]
set vrange [0:2* pi]
#set multiplot
splot sin(u)*cos(v),sin(u)*sin(v),cos(u) w pm3d,\
      sin(u)*cos(v),sin(u)*sin(v),cos(u) lt 3
#unset multiplot
pause -1
set term png transparent xffffff
set out "sphere.png"
!convert -geometry 50% -colors 512 sphere.png sphere_s.png
!display sphere_s.png