set pm3d depth lighting primary 0.7 specular 0.1 
set object rect from sc 0,0 to sc 1,1 behind fc "#114400"
set palette function 0.3, 0.4+0.4*rand(0), 1
set samples 194
set isosamples 194
unset border
unset tics
unset colorbox
unset key
set xyplane 0
set view 60,30, 1.5, 
set term pngcairo size 360,360
set out "sphere000.png"
set parametric
set urange [-pi/256:pi]
set vrange [-pi:pi]

x(u,v) = sin(u)*cos(v)
y(u,v) = sin(u)*sin(v)
z(u,v) = cos(u)
c=1
set xrange [-c:c]
set yrange [-c:c]
set zrange [-c:c]

splot x(u,v), y(u,v), z(u,v) w pm3d 
!display "sphere000.png"