AI影片生成提示詞結構還原

• 主體與材質設定

  A white and light gray high-elasticity sports knee sleeve, vertically suspended in the exact center of the frame. The asset displays micro-knit technical fabric, an integrated circular patella gel pad on the kneecap area, contoured side stabilization ribbing, and a subtle black geometric emblem printed along the lower hemline.

• 動態軌跡與物理特性

  The knee sleeve executes a continuous, slow 360-degree horizontal spin along its central vertical axis. The rotation maintains steady rotational velocity with no wobbling, cloth fluttering, or structural deformation during movement.

• 機位視角與鏡頭語言

  Static eye-level perspective locked on the subject with zero camera pan or tilt. An infinite depth of field keeps both the foreground surfaces and the receding contours of the rotating sleeve in razor-sharp focus throughout the loop.

• 環境背景與棚拍光影

  A solid, untextured pure black studio background. Soft, diffused multi-point white studio lighting produces even edge highlights and gentle surface shadows that accentuate the three-dimensional weave and seam depth.