아트워크 노멀 및 뎁스 맵 생성

Generate a [surface normal map and depth map side-by-side] from the reference photo. - Normal map: Standard tangent-space RGB encoding where R = X direction, G = Y direction, and B = Z direction. Normal directions follow the local geometry, shading, and contours with smooth transitions. - Depth map: Continuous grayscale depth map where white is near to the viewer and black is far, with physically plausible spatial gradients. Constraints: Maintain the exact framing, resolution, and aspect ratio of the reference photo. Do not add new artistic elements, repaint, or stylize; infer only plausible micro-geometry and depth structure without noise.