Resize costume parts with the Scale tool

Use uniform scaling to preserve proportions, or non-uniform scaling to adjust a costume part’s width, height, and depth independently.

Use the Scale tool to resize a selected costume part to fit your avatar. Uniform scaling changes all three dimensions together. Non-uniform scaling lets you stretch or compress one dimension at a time.

Activate the tool

1. Left-click a part in the Costume Viewport to select it.
2. Click Scale in the toolbar above the viewport.
3. Use the viewport controls for an interactive adjustment, or enter exact values in the Scale section of the Transform Panel.

The selected part has an orange outline. With the Scale tool active, the selection box and dimension labels help you check its size as you adjust it.

Uniform scale

Use uniform scaling when the part’s shape is correct but its overall size needs to change. Width, height, and depth change by the same proportion, preserving the part’s shape.

1. Select the part and find the Scale section in the Transform Panel.
2. Enable Uniform Scale.
3. Change one scale value. The other axes update together to preserve proportions.
4. Check the fit from the front and side before making another adjustment.

For example, applying 110% to a part that starts at 100% makes each dimension 10% larger. A helmet that is 19.5 cm wide becomes about 21.5 cm wide, and its height and depth increase by the same proportion.

Non-uniform scale

Use non-uniform scaling when only one dimension needs adjustment. For example, you can widen a helmet while keeping its height and depth unchanged.

1. Select the part and find the Scale section in the Transform Panel.
2. Disable Uniform Scale.
3. Adjust X, Y, or Z independently.
4. Check the shape and fit after each adjustment.

Axis	Dimension in the part’s local orientation
X	Width
Y	Height
Z	Depth

The Transform Mode determines the axes used for the adjustment. Local follows the part’s orientation; World uses the fixed scene axes. Use Local mode when you want to adjust a rotated part along its own axes.

Non-uniform scaling changes the part’s proportions. Check details such as circular openings, visor shapes, and adjoining edges after stretching or compressing a part.

Example: widen a helmet

The first screenshot shows the helmet at 100% on all three axes. Its displayed dimensions are 19.5 cm wide, 27.7 cm high, and 26.4 cm deep.

Before: the helmet at its original scale, with a width of 19.5 cm.

With Uniform Scale disabled and Transform Mode set to Local, change X to 165.75% in Percentage mode. Leave Y and Z at 100%. The helmet becomes 32.3 cm wide, while its height and depth remain 27.7 cm and 26.4 cm.

After: X is set to 165.75%, widening the helmet to 32.3 cm while preserving its height and depth.

This example demonstrates an independent width adjustment. Choose values that suit your own model and avatar, then orbit the view to check clearance around the head.

Enter percentages or dimensions

Choose Scale Mode in the Transform Panel before entering values:

• Percentage uses the part’s original size as the reference. 100% is the original size; 50% halves a dimension; 200% doubles it.
• Absolute lets you enter the desired dimensions in your chosen measurement units.

Use Uniform Scale with either mode when you want to preserve proportions. Disable it when you need to adjust individual dimensions.

Press Z to frame the selected part before adjusting it. Use Edit > Undo to reverse an adjustment. For positioning and orientation, see Move, Rotate, and Scale Parts.