[a, b, c, d] per plane with a*x + b*y + c*z + d >= 0 inside, as three's Plane (normal, constant). Any number of planes.
[a, b, c, d]
a*x + b*y + c*z + d >= 0
Plane
[a, b, c, d]per plane witha*x + b*y + c*z + d >= 0inside, as three'sPlane(normal, constant). Any number of planes.