Deleting Unused Morphs

When you export a character from iClone, you are allowed to remove the unused morphs to downsize the FBX file.

  1. Prepare a character.
  2. Setting face key with the sliders in the Modify tab (in this case, Mouth Smile only).

    The character will be morphed to change the facial expression.
  3. Execute File > Export > Export FBX... command.

  4. In the following panel, leave the Delete Unused Morphs checkbox deactivated.
  5. Click the Export button to export the character into FBX file.
  6. In iClone, export the character into FBX again. However, activate the Delete Unused Morphs checkbox this time.
  7. Compare the size of the two files. The file that has been exported with this feature is smaller than the other one.
  8. Load these two FBX files into another 3D software. Open the Blend Shapes panel to compare the differences.
    • without applying the Delete Unused Morphs feature: In addition to the one set with a value, the rest of the morph data are also kept in the FBX file.
    • Applying the Delete Unused Morphs feature: Only the morph data manually set with value are kept.
    ClosedNote:

    To preserve certain morphs during export with Delete Unused Morphs checked, assign them a small non-zero value so they are treated as used and won’t be removed by the Delete Unused Morphs functions.