Brush Tools

The Tools panel lists the brush tools on the left and each tool can be tailored using a modifier from the Modifiers list.

Note:  The Tools panel is dockable and can be detached and reattached to the main interface.

Brush Tools


Applies paint to any surface on your scene using the current brush size.

The Smooth brush can be used to blend transitions between colors.


Strokes consisting of single or multiple instances of these shapes can be added or subtracted from the current layer.


Applies sharp grooves to the surface.

For the best effect, use this tool in combination with the Brush Tools modifier.


Kanova lets you make custom brushes using geometry from any layer. Copy To Brush copies the currently selected layer into the active custom brush.

You can select any saved custom brushes by double-clicking a brush thumbnail in the Brushes Palette.


Removes high frequency details in your scene.


For best results use this tool in combination with the Brush Tools modifier.

In desktop mode, the scene is flattened in the plane of the display at a depth taken from the point on the surface under the mouse when you press the left button.

In VR mode, the flattening plane is perpendicular to the controller’s laser pointer.


Geometrically distorts contents of the current layer.

Use this tool for making localized changes to your scene.

Brush Tool Modifiers

Follow Surface

In VR, clay can be applied in free space at any point within the layer’s bounding box. When Follow Surface mode is enabled, sculpting operations are applied on the surface that is currently being pointed to by the Controller.

Note:  In Desktop mode, all sculpting operations have to begin on a pre-existing surface. This ensures that Kanova is aware of the depth at which to perform the operation.


When creating scenes with bilateral symmetry, the Mirror modifier allows you to concentrate on only one side of the scene.


Sculpting operations can either be added or subtracted from the current layer.


If selected, only one instance of a sculpting operation is applied when the trigger is pressed.

Smooth Blend

Select this to create a smooth transition where the brush stroke meets the surface. Sharp edges are rounded and sharp corners roll off smoothly.

The degree of smoothness is controlled by the Strength slider. High strength gives a sharper transition, and low strength gives a very smooth transition.

Lazy Strokes

This causes the stroke to lag behind the mouse by a short time; the new geometry eventually catches-up, making it easier to draw straight lines and smooth curves.

The Rate slider controls how quickly the stroke catches up. The slider is in the Lazy Strokes section of the Tools panel

Tool Settings

Each brush property includes a checkbox to the right to make it pressure sensitive. Check the box so that the corresponding property is adjusted according the pressure on the VR control trigger. Regular mouse operation doesn't support pressure sensitivity.

Note:  Each Brush Tools maintains its own values for Radius, Strength, and Height.


Every sculpting operation has an area of effect. This is indicated by either a circle on the surface of the scene or by the blue tool shapes in VR. The radius provides a guide to the maximum extent of the operation. The actual area of effect is partially determined by the Strength modifier.

Use the right-mouse to adjust Radius.


By reducing the strength of a sculpting operation, more subtle effects can be obtained. For example, to reduce the effect of a smoothing operation, reduce the strength amount for that tool.

If Smooth Blend is off, Strength still affects the amount of rounding on the edges of certain brushes such as the cube and ribbon.

Use Ctrl+right-mouse to adjust Strength. Alternatively use the [ and ] keys.


The height of the brush above the surface of the mesh.

Use Shift+[ and Shift+] to adjust Height.



Every layer has its own Undo/Redo stack. For complex layers it may take a few moments for the undo/redo to be applied.

Note:  Undo and Redo can handle adding, removing, and copying layers.

Brushes Palette

The brushes palette is in the Brushes panel and shows all your saved custom brushes. The panel is visible by default on the bottom-left of the UI. You can also open it from the main menu by selecting View > Panels > Brushes.

Double-click on a brush thumbnail to assign it as the current custom brush.

The top of the Brushes panel shows the Path to the folder where the brushes are stored. A file is recognized as a brush if it has the extension .kbrush. Brushes are saved using Save As Brush.

To delete or rename brushes, use your file browser to open the brushes folder and delete the file or edit the filename.