Javascript A帧物理：使碰撞网格与动画gltf模型一起移动

我试图捕捉动态球体和静态gltf模型之间的碰撞事件

<a-gltf-model src="#bird" 
                    position="0 0 -10"
                    animation-mixer
                    scale="0.05 0.05 0.05"
                    body="type:static; shape:none"
                    shape__main="shape: box; offset: 0 100 0; halfExtents: 20 40 20"
                    shape__right-wing="shape: box; offset: 40 95 0; halfExtents: 20 10 10"
                    shape__left-wing="shape: box; offset: -40 95 0; halfExtents: 20 10 10"></a-gltf-model>