Look around — the world you live in is three-dimensional. Every car, bottle, pen, and gadget occupies space, has depth, and interacts with light and shadow. Designers and engineers think in 3D because they imagine how something will exist and function in the real world, not just on paper or a screen.

When you learn to “think in 3D,” you move beyond flat sketches and start to visualize volume, form, and structure. This kind of imagination is the foundation of product design, architecture, engineering, animation, and even robotics.

This lesson will help you understand how to see and draw objects in 3D perspective — the first step toward modeling and prototyping your ideas in digital tools like Blender.