add spaceship model
allow camera position on spaceship to be moved eg from centre to nose
add level model eg box room with door in middle of wall, to demonstrate advantage of viewing front hemisphere (don't have to move view to check corners)
add a button to check rear view
add momentum
add spaceship model allow camera position on spaceship to be moved eg from centre to nose add level model eg box room with door in middle of wall, to demonstrate advantage of viewing front hemisphere (don't have to move view to check corners) add a button to check rear view add momentum