public Object3Dpublic Drawable3Dusing testbed_type = vtb::core::Testbed< T, 3 >using vec3 = vtb::core::Vector3< T >show(bool b) -> voidinit(const testbed_type & testbed) -> voidclear() -> voidstep(const testbed_type & testbed) -> voiddraw(const Matrix4 & m, Camera3D & camera) -> voidHullSpheres()