C10: Introduction: 3D Designing, Sculpting & 3D Printing

Aim:

To observe real-world objects and sketch them using 3D perspective and shading.

Requirements:

  • Drawing sheet or sketchbook

  • Pencil, eraser, ruler, sharpener

  • Real objects (bottle, box, mug, keychain, mobile charger, etc.)

  • Optional: colored pencils for shading

Step-by-Step Process

Step 1: Choose Your Objects

Pick three small everyday items — preferably with simple shapes:

  • Example 1: A bottle (cylinder)

  • Example 2: A box or book (cuboid)

  • Example 3: A cup or mug (cone + cylinder)

This helps you focus on basic geometric forms used in design.

Step 2: Observe from Different Angles

Place each object on your desk and observe:

  • From the front

  • From an angle (around 45°)

  • From slightly above

Notice how the visible sides change, and parallel edges appear to meet as they go farther away.

Step 3: Draw Basic Shapes

Start with simple geometric outlines:

  • Use a ruler for straight edges (boxes, books, etc.)

  • Use light lines to mark the height, width, and depth

  • Apply one-point perspective for simple objects (one vanishing point)

  • Try two-point perspective for boxes or more complex items

Tip: Don’t aim for perfection — focus on the illusion of depth.

Step 4: Add Perspective Lines

  • Draw a horizon line across the page.

  • Place one or two vanishing points on it.

  • Extend guidelines from the object’s corners toward those points.

  • Erase unnecessary construction lines when the form looks solid.

This creates the 3D illusion of distance and proportion.

Step 5: Shade and Add Depth

  • Identify the light source (imagine a lamp or sunlight direction).

  • Shade the areas away from the light using gentle strokes.

  • Darker shading = depth; lighter = near surfaces.

  • Add small shadows to the ground to make the object look grounded.

This step gives realism and weight to your sketches.

Step 6: Reflect and Label

Under each drawing, write:

  • Name of the object

  • Type of perspective used (1-point or 2-point)

  • Basic geometric shapes that form the object

Example:

“Object: Coffee Mug — Shapes used: Cylinder + Torus — Perspective: One-point.”

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