ZBrush

How to Fill a ZBrush?

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Understanding the Basics of ZBrush

ZBrush is a powerful tool for 3D modeling and sculpting, widely used by artists and designers to create intricate designs. Whether you’re new to ZBrush or have some experience, understanding how to manipulate your models effectively is crucial. One common task is filling a model, which may involve adding materials, colors, or textures to your sculpture.

Preparing Your Model

Before filling your model, ensure it’s ready. This means:

  1. Sculpt Your Base Model: Begin by sculpting your primary shapes. Use the various brushes available in ZBrush to create the desired form.

  2. Check for Open Edges: Ensure your model is closed, as open edges can lead to filling issues. Use the ‘Close Holes’ function in the Geometry menu.

  3. Subdivision Levels: If necessary, adjust the subdivision levels. More subdivisions provide greater detail, which can enhance the filling process.

Filling Techniques in ZBrush

Filling your model can be done through several methods:

Using Polygroups

  1. Assign Polygroups: Use the Polygroup function to assign different colors to areas of your model. This segmentation helps in isolating parts for detailed work.

  2. Select Your Polygroup: Use the Select Rect or Select Lasso tool to choose your Polygroup.

  3. Fill the Polygroup: Once selected, apply your desired color by navigating to the Color menu and using the Fill Polygroup option.

Applying Materials

  1. Choose Your Material: Go to the Materials palette and select a material suitable for your project.

  2. Flood Fill: With your material selected, use the ‘Fill Object’ option to apply the chosen material to your entire model.

  3. Adjust Material Properties: Customize the material settings like color, specularity, and texture mapping to achieve the desired effect.

Utilizing Texture Maps

  1. Create a Texture Map: Import or create a texture map that you want to apply to your model. This can be created in ZBrush or another application.

  2. UV Mapping: Ensure your model has UV coordinates set up appropriately. If not, go to the UV Map menu to create or refine them.

  3. Apply Textures: In the Texture palette, load your texture and then use the ‘Texture Map’ option in the Tool’s menu to apply it to your model.

Finalizing Your Design

After filling your model, consider the following steps:

  1. Check for Consistency: Rotate and view your model from different angles to ensure that the filling appears consistent and adheres to your original vision.

  2. Refine Details: Use additional sculpting tools to refine edges and details, ensuring that your fill complements the overall model appearance.

  3. Save Your Work: Regularly save your progress. ZBrush can handle large files, but it’s always good practice to save versions periodically.

Frequently Asked Questions

What is the best way to ensure my model fills correctly in ZBrush?
To ensure correct filling, always check that there are no open edges or holes in your mesh. Using the ‘Close Holes’ feature can help if you discover any issues.

Can I change the fill color after applying it?
Yes, you can change the fill color by selecting the area again using Polygroups or by applying a new texture or material to the model.

What should I do if my model appears to have shading issues after filling?
Shading issues can often be resolved by adjusting the model’s normals. You may also want to check the lighting settings in your scene to ensure they enhance the features of your filled model.


This article should give readers a comprehensive understanding of how to fill models in ZBrush while providing them practical steps and insights that are easy to follow.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.