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Make a Droid Ball in ZBrush and learn new tips

In this tutorial, the instructor guides you through the process of creating a ball droid using booleans and knife tools.

They explain the concept of booleans, demonstrating how to add, subtract, and intersect meshes to create precise holes and add details to the droid.

They also showcase the knife tool, which allows for straight cuts on the model, and explain how to use it effectively to create flat surfaces, curves, and right angles. Additional details are added to the droid using cylinders and rings, with modifications made using the initialized panel.

The tutorial emphasizes that the booleans are not yet accepted, indicating that the model is not finalized.

Overall, the tutorial provides insights into using booleans, tapering, and the knife tool to create a detailed droid ball model.


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  • Start by adding a sphere to the workspace and change its material.

  • In this class, we’ll be using a new tool to help us create a futuristic Droid Ball with Live Boolean.

  • Booleans in ZBrush lets you combine, cut, or overlap different 3D shapes to create new ones.

  • To activate this tool click the Live Boolean button next to Lightbox.

  • To make nice cuts and holes inside our Ball we can use other shapes

  • Append a cylinder and use it to subtract from the sphere, creating a hole in the droid's body.



  • To make interesting shapes fast we can use existing shapes inside the SimpleBrush tool and change their features in the Initialize Options.

  • These Options are only available when you activate the Edit but not the Make Polymesh3D.

  • By changing some of the values inside of the Initialize Options we’ve made a nice shape for our Droid Ball.

  • Once we are done we can click on Make Polymesh3D and Append it inside of our previous Subtool where our Droid Ball is.

  • Once we Appended our new shape we can continue working on our Droid Ball.



  • To access the knife tool you need to hold Left Ctrl + Shift.

  • You can choose any type of knife brush you want from its brush menu by clicking on the knife tool icon.

  • In this class, we specifically use the Knife Curve Brush to create clean cuts on the Droid Ball.

  • To use the Knife Curve you need to always be holding down Left Ctrl +Shift.

  • You can also make curved or straight lines with the Knife Tool by clicking once on the Alt key for a bend line or clicking twice on the Alt key for a straight line.

  • Just like in our previous step, we’ll make a new object by adjusting its size in the Initialize Options.

  • This time we’ll change the radius inside the cylinder to make it hollow in the center by changing the Inner Radius slider.

  • We’ll use this new shape to make nice details on and around our Ball.



  • To use all of the parts together into one we need to make it into its own object.

  • To do that we need to click the Make Boolean Mesh option inside of our Subtool.

  • When we do this a new Tool will appear inside our project.



  • To add crips holes on our model using the move brush we first need to decrease the Focal Shift of the brush.

  • By doing this we’ll get nice sharp outlines.


RENDER SETS


  • In this video tutorial, the instructor demonstrates how to use the pre-built render presets in Zbrush.

  • These presets can be applied to models, characters, or any other objects to enhance the scene.

  • The instructor shows a shortcut (Ctrl + S) to create snapshots of the model for easy showcasing without the need to copy or move it.

  • The snapshots can be deleted by using the shortcut Ctrl + N.

  • However, the snapshots cannot be rendered as final images.

  • To overcome this limitation, the instructor suggests a workaround by duplicating the model using the gizmo and rotating the copies to create different viewpoints.

  • The instructor advises ensuring that all sub-tools are unmasked before b.

  • Then, they demonstrate how to access the render presets in the lightbox and apply them to the model.

  • By clicking the BPR button, different render styles can be applied, such as blueprint sketch, charcoal, watercolor, or pencil on paper.

  • These preset provide interesting and artistic filters to showcase the model.

  • To export the rendered image, the instructor navigates to the document tab and selects the export image option.

  • The image can be saved and cropped as desired. It is mentioned that the exported image's quality depends on the viewport size, and if the size is changed, a new tool needs to be created.

  • Additionally, the instructor suggests adjusting image attributes like contrast and gamma for post-processing effects.

  • Once the image is exported, the applied filters will be removed from the scene.

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