How to Use GIMP Cage Transform Tool?

The Cage Transform tool in GIMP is a powerful feature that allows you to warp, stretch, and deform specific areas of an image by creating a custom anchor-point cage around them. Unlike global transformation tools, it gives you surgical control over a selected region while keeping the rest of the image relatively unaffected. This article provides a step-by-step guide on how to locate the tool, place your deformation points, and successfully warp targeted sections of your graphics.

Step 1: Select the Cage Transform Tool

First, open your image in GIMP. You can activate the Cage Transform tool in one of two ways:

Go to the top menu and navigate to Tools > Transform Tools > Cage Transform.
Click the Cage Transform icon in the Toolbox (it looks like a 3D wireframe box with adjustable vertices).

Step 2: Create Your Cage

Once the tool is active, your cursor will change to a crosshair with a small cage icon.

Left-click around the specific area of the image you want to deform to place your first anchor point.
Continue clicking around the object to draw a closed polygonal shape.
To complete the cage, click back on the very first anchor point you created. GIMP will then process the selection and prepare the area for warping.

Step 3: Deform the Targeted Area

After closing the cage, GIMP switches from “Create or adjust the cage” mode to “Deform the cage to deform the image” mode in the tool options.

Click on any of the anchor points (vertices) you just created. The selected point will become active.
Click and drag the point to stretch, compress, or warp that specific section of the image.
You can select and move multiple points simultaneously by holding down the Shift key while clicking them.

Step 4: Apply the Transformation

Once you are satisfied with the distortions and the specific area looks exactly how you want it, you need to finalize the changes. Press the Enter key on your keyboard to commit the transformation. GIMP will render the final pixels, completing the warp effect.