/run/initialize

/vis/open OGL 800x800-0+0
#/vis/open VRML2FILE

/vis/viewer/set/viewpointVector 1 1 1
/vis/viewer/set/autoRefresh true

/vis/drawVolume

/vis/scene/add/trajectories smooth
/vis/scene/endOfEventAction accumulate
#/vis/scene/add/scale 10 cm
#/vis/scene/add/axes
#/vis/scene/add/eventID

/tracking/verbose 2

# Define particle source
/gun/particle geantino
/gun/energy 15 MeV

# Set the initial position of the particle gun if needed
/gun/position 0 0 -0.25 m

# Set the direction of the particle gun (pointing along the z-axis)
/gun/direction 0 0 1

# Set the number of particles to be shot
/run/beamOn 10