def METHOD_NAME(self):
    self.worldNP = render.attach_new_node('World')
    # World
    self.debugNP = self.worldNP.attach_new_node(BulletDebugNode('Debug'))
    self.debugNP.show()
    self.world = BulletWorld()
    self.world.set_gravity((0, 0, -9.81))
    self.world.set_debug_node(self.debugNP.node())
    # Ground
    p0 = LPoint3(-20, -20, 0)
    p1 = LPoint3(-20, 20, 0)
    p2 = LPoint3(20, -20, 0)
    p3 = LPoint3(20, 20, 0)
    mesh = BulletTriangleMesh()
    mesh.add_triangle(p0, p1, p2)
    mesh.add_triangle(p1, p2, p3)
    shape = BulletTriangleMeshShape(mesh, dynamic=False)
    np = self.worldNP.attach_new_node(BulletRigidBodyNode('Mesh'))
    np.node().add_shape(shape)
    np.set_pos(0, 0, -2)
    np.set_collide_mask(BitMask32.all_on())
    self.world.attach(np.node())
    # Soft body world information
    info = self.world.get_world_info()
    info.set_air_density(1.2)
    info.set_water_density(0)
    info.set_water_offset(0)
    info.set_water_normal((0, 0, 0))
    # Softbody
    for i in range(50):
        p00 = LPoint3(-2, -2, 0)
        p10 = LPoint3( 2, -2, 0)
        p01 = LPoint3(-2,  2, 0)
        p11 = LPoint3( 2,  2, 0)
        node = BulletSoftBodyNode.make_patch(
            info, p00, p10, p01, p11, 6, 6, 0, True)
        node.generate_bending_constraints(2)
        node.get_cfg().set_lift_coefficient(0.004)
        node.get_cfg().set_dynamic_friction_coefficient(0.0003)
        node.get_cfg().set_aero_model(
            BulletSoftBodyConfig.AM_vertex_two_sided)
        node.set_total_mass(0.1)
        node.add_force((0, 2, 0), 0)
        np = self.worldNP.attach_new_node(node)
        np.set_pos(self.LVector3_rand() * 10 + LVector3(0, 0, 20))
        np.set_hpr(self.LVector3_rand() * 16)
        self.world.attach(node)
        fmt = GeomVertexFormat.get_v3n3t2()
        geom = BulletHelper.make_geom_from_faces(node, fmt, True)
        node.link_geom(geom)
        nodeV = GeomNode('')
        nodeV.add_geom(geom)
        npV = np.attach_new_node(nodeV)
        tex = loader.load_texture('models/panda.jpg')
        npV.set_texture(tex)
        BulletHelper.make_texcoords_for_patch(geom, 6, 6)