An inverted sphere: this is a sphere whose collision surface is the inside surface of the sphere. Everything outside the sphere is solid matter; everything inside is empty space. Useful for constraining objects to remain within a spherical perimeter.
CollisionInvSphere(PN_stdfloat cx, PN_stdfloat cy, PN_stdfloat cz, PN_stdfloat radius)¶
Creates an invalid sphere. Only used when reading from a bam file.