Function _regularizeOpts

js/main.js:3862–3871

()

    if (userMaskArr[t * 3] < 0.5) { faceMaskBool[t] = 0; continue; }
    let angleMask = 1.0;
    if (faceNrmAttr) {
      const fnx = faceNrmAttr.getX(t * 3);
      const fny = faceNrmAttr.getY(t * 3);
      const fnz = faceNrmAttr.getZ(t * 3);
      const len = Math.sqrt(fnx * fnx + fny * fny + fnz * fnz);
      const nz = len > 1e-6 ? fnz / len : 0;
      const surfAngle = Math.acos(Math.min(1, Math.abs(nz))) * (180 / Math.PI);
      if (nz < 0 && settings.bottomAngleLimit >= 1)
        angleMask = surfAngle > settings.bottomAngleLimit ? 1.0 : 0.0;
      if (nz >= 0 && settings.topAngleLimit >= 1)
        angleMask = Math.min(angleMask, surfAngle > settings.topAngleLimit ? 1.0 : 0.0);
    }
    faceMaskBool[t] = angleMask > 0.5 ? 1 : 0;