GEOMETRY LOCK — HIGHEST PRIORITY:
- Keep ALL geometry, proportions, positions, orientations, and shapes EXACTLY as in the input image.
- Do NOT crop, pan, zoom, or reframe — output MUST match input pixel-for-pixel in composition and resolution.
- Do NOT add, remove, or reposition any parts. ONLY enhance visible surface materials.
- Do NOT add text, labels, dimensions, or annotations.
- If a part is partially outside frame or occluded, leave it as-is — do NOT "complete" or extend it.
- If the input image shows only part of the assembly (close-up), do NOT try to show the full assembly.

COORDINATE SYSTEM:
{coordinate_system}

VIEW: This is a {view_description} of a {product_name}.
{view_type_note}

ASSEMBLY STRUCTURE (visible in THIS view):
{assembly_description}

MATERIAL ENHANCEMENT (apply ONLY to surfaces visible in the input image):
{material_descriptions}

{section_face_treatment}

{standard_parts_description}

CRITICAL CONSTRAINTS:
{negative_constraints}

MULTI-VIEW CONSISTENCY:
{consistency_rules}

{environment}
