To reverse the faces of your geometry in ZBrush, you will need to flip the normals. Here's how you can do it:
Reversing Normals in ZBrush
You can reverse faces by flipping their normals, using these steps:
- Access Display Properties: Navigate to the Tool palette, then find and open the Display Properties sub-palette.
- Flip Normals: Within the Display Properties, click on the Flip button. This action will flip the normals of your visible geometry.
- Check "Double" Sided View: Ensure that the Double sided view option is turned off in the Display Properties menu. This is important so you can clearly see the normal facing after you flip them. This lets you verify if the flip was correct.
Explanation:
Normals are directional vectors that point away from the surface of a polygon. They determine which side of the polygon is considered the "front" and which is the "back." When normals are flipped, the front face becomes the back, and vice-versa. This can make your mesh render incorrectly or cause other visual issues.
Applying the Flip to All Subtools
If you have multiple subtools and want to reverse the faces of all of them, you can use these additional steps:
- Apply Last Action: Go to the Subtool palette.
- Apply to All Subtools: Locate the "Apply Last Action to All Subtools" button and click it. This will apply the flip operation to all visible subtools.
Important Considerations:
-
Visible Geometry: The Flip button in the Display Properties only affects the geometry that is currently visible. Make sure to show all subtools if you want to flip all faces.
-
"Double" Sided View: As stated earlier, making sure the “Double” sided view is off lets you confirm if the flip of the normals has been done correctly.
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Reversing a previous flip: If you flipped by accident, just repeat the process by clicking the flip button, the flip action reverses itself each time it's clicked.
| Feature | Description |
|---|---|
| Tool Display Properties | Location of the Flip and Double-Sided View options. |
| Flip Button | Used to reverse the direction of the normals, thus flipping the faces. |
| Double Sided View Option | Option in display properties, ensures the user can check if the normal has been flipped or not correctly. |
| Apply Last Action to All Subtools | Used to perform the last action to all of your subtools. |
By following these steps, you can easily reverse the faces of your models in ZBrush.
