To cut a polygon 3D model without high poly, use boolean modifiers (with simple shapes) or edge-based tools like knife/slice—both preserve low poly topology. This avoids excess vertices, critical for game/real-time models where poly count impacts performance. For Blender users: Start with a clean base mesh, try the Knife tool (K) for manual cuts, or use a Boolean modifier with a basic shape (e.g., cube) set to "Difference"—this keeps topology clean without adding polygons.
