Technical term in computer graphics for the process of applying shading to a 3D model or image.
When shading is applied to a 3D model, it gains a greater sense of depth.
Loanword from English 'shading', often used interchangeably with 陰付け処理 in CG contexts, but 陰付け処理 is a native Japanese compound.
Compound of 陰 (kage, 'shadow') + 付け (tsuke, 'attaching') + 処理 (shori, 'processing'). The exact derivation is uncertain, but it is a straightforward technical term formed from its components.