---
title: "Saving Projects"
url: "https://help.maxon.net/zbr/en-us/Content/html/user-guide/3d-modeling/modeling-basics/dynamic-subdivision/saving-projects/saving-projects.html"
section_path: "User Guide > 3D Modeling > Modeling Basics > Dynamic Subdivision > Saving Projects"
description: "Any Dynamic Subdivision settings applied to the current Tool or SubTool will be saved within either Project (ZPR) or Tool (ZTL) files. After saving and …"
---

# Saving Projects

## Dynamic Subdivision and Saved Projects/Tools

Any Dynamic Subdivision settings applied to the current Tool or SubTool will be saved within either Project (ZPR) or Tool (ZTL) files. After saving and reopening a file, the current Dynamic Subdivision settings will remain the same.

Unlike Classic Subdivision which actually changes the model’s geometry, Dynamic Subdivision is a render effect being performed in real-time. As such, Dynamic Subdivi­sion has no effect upon file size. ZBrush is simply storing a few settings rather than extra polygons.