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Clay tool | Substance 3D Modeler

Clay tool

💻 Shortcut: C

🥽 Quick swap: Erase tool

Use the Clay tool to add clay to a layer. The Clay tool is the primary tool for adding clay to a scene and is the first tool you'll use when starting a new scene. While other tools work on the surface of existing clay, the Clay tool lets you create clay from nothing, so it's often useful for blocking out shapes.

The Clay tool doesn't work across multiple layers as Modeler needs to know which layer the clay is being added to. It's only possible to use the Clay tool in a single layer at a time. If you are not scoped into a single layer and select the clay tool, the Clay tool will create a new layer for you to place clay into.


Using the Clay tool with a large brush can impact responsiveness while the scene is updated. If you find that clay is taking too long to appear, try decreasing layer resolution or decreasing brush size. To understand why this happens, read more about how Modeler works.

Clay tool parameters

Brush Shape

Select the base shape for the brush

Different brush shapes have different parameters available. For example, you can adjust the width, height, and depth of a cube, or you can adjust the radius and thickness of a torus. A full list of brush shape parameters is available here.


Modify the size of the brush

Increase or decrease the size of the brush. Very large brush sizes may cause a delay between adding clay and the clay appearing.

Toggle pressure sensitivity

Pressure sensitivity allows you to dynamically adjust the scale of clay as you draw out your strokes.

  • 🥽 Vary the amount of pressure you apply with TT during your stroke.
  • 💻 Pressure sensitivity works best with a pressure sensitive pen and tablet.
Toggle single mode Single mode will only place a single stamp of your brush when you pull the trigger instead of constantly applying clay along your stroke.
Toggle Lazy stroke With Lazy stroke enabled, the stroke is dragged behind the cursor rather than appearing directly beneath it. This helps create smoother strokes and clean curves.
Toggle Steady stroke Steady stroke takes time to catch up with the cursor. Unlike Lazy stroke, Steady stroke will eventually reach the cursor. This helps create smoother strokes and clean curves.


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