Here is an example of setting some basic geometry parameters

#geometry
add cube
name Geo0
diffuse 0.800000 0.800000 0.800000 1.000000
specular 0.800000 0.800000 0.800000 1.000000
ambient 0.200000 0.200000 0.200000 1.000000
reflection 0.000000 0.000000 0.000000
shininess 50.000000
geo emission 0.000000 0.000000 0.000000 1.000000

Basic Objects in Vim3D

add grid [<divisionsX> <divisionsZ> <step> <dx> <dz>]
add sphere
add cube
add circle