Is money earned from working with a technology that makes audible voices more realistic, which requires the creation of a 3D image of the human face, permissible or forbidden, knowing that this image is disposed of after the voice creation process is completed?

Many scholars permit drawing if it is limited to the face without the body, or if it is headless, or a head without a body, or a head with the rest of the body being non-animal, because these do not fall under the prohibition. This applies to images drawn by hand or printed. As for digital images, the matter is easier. The money earned from this work is lawful, because it is a wage for the effort in 3D sound technologies, not for the image of the face.