01Start from a Clear Subject
Choose one photo or illustration where the face and torso are easy to see. Front or three-quarter views transfer more cleanly than a distant crowd shot. Sunglasses, a hand over the face, or a tiny figure in a busy gym make the identity check weaker. Note the outfit and colors you want to keep. This step sets who is in the frame. It does not start a training plan.
02Describe the Athletic Motion
The AI Muscle Generator template takes the athletic look from the preview, so the brief should name outfit, light, camera distance, and one movement such as a slow turn or a short walk. Leave celebrity names, brand logos, and medical claims out of the line.
03Review the First Take
Play the short result and check the face, shoulders, hands, and whether the outfit still reads. Shoulders and hands should still belong to the same person at the end of the turn. If they do not, simplify the photo before you extend. If the person no longer matches the upload, change the image or the motion line and generate again. Extend the clip only after that first watch holds. Credit use follows the allowance shown for your account.