Sean

how can i flip faceNormals?

1

faceNormals.forEach(v => { v.x = -v.x; v.y = -v.y; v.z = -v.z; })

svg elements disappeared when wheel or drag

1

i import svg.panzoom.js in vue2.0 webpack 4.0 environment,but all svg elements disappeared when mousewheel or drag.