Brush Mode

Brush Mode is for freehand editing in screen space.

As you drag, Foxel shows a highlighted overlay preview of the brush stroke. The active tool is not applied yet. When you release the mouse button, Foxel applies the active tool to the voxels under that highlighted stroke.

Why This Matters

Brush Mode may look like a live painting mode at first, but the important thing to understand is that the stroke is previewed first.

The active tool is only applied when you release the mouse button.

This makes the interaction easier to read because you can see the affected stroke area before the edit is committed.

How Brush Mode Works

Brush Mode works in screen space.

To use it:

1. Click and drag on the screen to draw a brush stroke.
2. Foxel shows the stroke as a highlighted overlay preview.
3. Release the mouse button to apply the active tool to the voxels under the highlighted stroke.

The final result depends on:

• The active tool
• The current brush size
• The highlighted stroke area
• The current view

Important Behavior

The highlighted stroke is only a preview while you are dragging.

Brush Mode does not pierce the object.

That means it affects only the voxels under the visible highlighted stroke from the current view.

Use this when you want surface-focused freehand editing instead of an edit that passes through the object.

Brush Size

You can change the brush size in the Toolbar.

Available sizes are:

• Small
• Medium
• Large
• Extra Large

A smaller brush is useful for tighter edits.

A larger brush is useful for broader strokes and faster coverage.

When To Use Brush Mode

Use Brush Mode when:

• You want fast freehand edits.
• You want to work from the current view.
• You do not need exact rectangular or box-shaped bounds.
• You want a mode that stays on the visible surface instead of piercing through the object.
• You want to preview the stroke before applying the edit.

What To Remember

• Brush Mode works in screen space.
• The stroke is previewed while you drag.
• The active tool is applied when you release the mouse button.
• Brush Mode does not pierce the object.
• It affects the visible stroke area from the current view.
• Brush size is changed in the Toolbar.