How do I undo all rotations in Blender?

To reset all rotations on a selected object in Blender, press Alt + R. This will clear any rotation transformations you've applied and return the object to its original orientation.

Here's a more detailed breakdown:

• Selecting the Object: First, ensure that the object you want to reset the rotation for is selected. You can do this by clicking on it in the 3D Viewport.
• Using the Shortcut: Press the Alt key and the R key simultaneously. This executes the "Clear Rotation" command.
• Effect: This command resets the object's rotation values on all axes (X, Y, and Z) back to zero, effectively undoing any rotations you've made.

Alternative Methods:

While Alt + R is the quickest way, you can also achieve the same result through Blender's interface:

1. Open the Properties Panel: If it's not already open, press N to toggle the Properties panel.
2. Navigate to the Item Tab: In the Properties panel, select the "Item" tab.
3. Locate the Rotation Fields: You will see the X, Y, and Z rotation values listed.
4. Manually Reset Rotation: Click on each rotation value (X, Y, and Z) and set it to 0.

Why use Alt + R?

Using the Alt + R shortcut is much faster and more efficient than manually setting each rotation value to zero. It's a fundamental Blender shortcut worth memorizing.

Example Scenario:

Imagine you've rotated a cube around several axes and now want it to return to its original upright position. Selecting the cube and pressing Alt + R will instantly reset its rotation.