ZBrush is a powerful tool for 3D modeling and digital sculpting, and it supports the import of OBJ files for easy integration of external 3D models. Here's a step-by-step guide on how to import OBJ to ZBrush.

Step 1: Launch ZBrush and open the project you want to work on. If you're starting a new project, create a new document or open an existing one.

Step 2: Go to the Tool palette and click on the Import button. This will allow you to select the OBJ file that you want to import into ZBrush.

Step 3: Navigate to the location where your OBJ file is saved and select it. Click on the Open button to import the OBJ file into ZBrush.

Step 4: Once the OBJ file is imported, you can use the Move, Scale, and Rotate tools to position and manipulate the 3D model within ZBrush. You can also use ZBrush's powerful sculpting tools to modify the imported OBJ file and integrate it into your project.

Step 5: After making any necessary adjustments to the imported OBJ file, you can continue working on your project in ZBrush. You can create new layers, add textures, and apply materials to your 3D model to bring your vision to life.

Step 6: To export your project with the imported OBJ file, go to the Tool palette and click on the Export button. This will allow you to save your project as a separate file with the imported OBJ file included.

By following these steps, you can easily import OBJ files into ZBrush and incorporate external 3D models into your projects. ZBrush's intuitive interface and powerful sculpting tools make it easy to work with imported OBJ files and create stunning 3D designs. Whether you're a professional 3D artist or a hobbyist, ZBrush provides the flexibility and functionality you need to bring your creative visions to life.