x;
            //引入fbo picking的vert相关函数
            #include <fbo_picking_vert>
            #include <get_output>
            void main()
            {
                mat4 localPositionMatrix = getPositionMatrix();
                gl_Position = projViewMatrix * modelMatrix * localPositionMatrix * getPosition(aPosition);
                //传入gl_Position的depth值
                fbo_picking_setData(gl_Position.w, true);
            }`;
        
        const polygonVert = `
            att