3D Modelling with Paint 3D -- JSS 1 Class

INTRODUCTION:

Think about the last time you watched an animated movie or played a video game. The characters, buildings, cars, and even the trees you saw were all designed by someone — someone who started with the basics of 3D modelling. Today, that skill is no longer reserved for professionals in big studios abroad. With a simple tool called Paint 3D, you can start your own 3D design journey right from your school computer or home laptop.

Paint 3D is a free application that comes built into Windows 10 and Windows 11. It is easy to use, does not require any special design experience, and is perfect for beginners — especially students at the JSS level. Whether you are in Lagos, Abuja, Kano, or Enugu, if you have a computer running Windows, you already have access to this powerful tool.

In this lesson, we will explore what Paint 3D is, how to draw basic shapes and models, and how to properly save and export your 3D projects. By the time you finish reading, you will be confident enough to open Paint 3D and start creating your own digital designs.

LEARNING OBJECTIVES

By the end of this lesson, students should be able to:

• Define 3D modelling and explain how it differs from 2D drawing
• Identify the key features and tools available in the Paint 3D interface
• Demonstrate how to draw and manipulate basic 3D shapes in Paint 3D
• Describe the steps involved in creating a simple 3D model
• Explain how to save and export a 3D project in different file formats
• Apply 3D modelling skills to simple creative or school-related projects

3D MODELLING

Before we jump into Paint 3D, let us first understand what 3D modelling actually means.

When you draw a house on paper, you are working in 2D — that means your drawing has only two dimensions: width and height. You can see the front of the house, but not the sides or the back.

3D modelling is the process of creating objects that have three dimensions: width, height, and depth. A 3D model looks more like a real object. You can rotate it, view it from different angles, and even walk around it (digitally). This is the technology used to design everything from movie characters to phone prototypes and architectural buildings.

Now, imagine you are a student at a Government Secondary School in Nigeria and you want to design a model of a Nigerian hut or a calabash for a school project. With 3D modelling tools like Paint 3D, you can bring that idea to life digitally — no clay, no cardboard, just your computer.

INTRODUCTION TO PAINT 3D

Paint 3D is a Microsoft application that was introduced as an upgrade to the classic Microsoft Paint. While the old Paint only allowed flat, 2D drawings, Paint 3D allows you to create and interact with three-dimensional objects in a simple and friendly environment.

It comes pre-installed on Windows 10 and Windows 11, which means you do not need to download or purchase anything extra. You can find it by clicking the Start menu and searching for "Paint 3D."

Here are some important things to know about Paint 3D:

• It is free and already available on most Windows computers in Nigerian schools and homes
• It supports both 2D and 3D drawing on the same canvas
• It allows you to add text, stickers, and effects to your designs
• It has a feature called Remix 3D (now discontinued) that once allowed users to share models online
• It supports multiple file formats for saving and exporting

THE PAINT 3D INTERFACE

When you open Paint 3D for the first time, you will see a clean and colourful workspace. Let us look at the main sections:

The Menu Bar at the top gives you access to options like New, Open, Save, and Export.

The Toolbar on the left side (or top panel) contains tools for brushes, 3D shapes, text, stickers, and effects.

The Canvas is the large white area in the middle where you draw and create your models.

The Properties Panel on the right side changes depending on which tool you select. It gives you options to control colour, texture, size, and other settings.

The View Controls at the bottom right allow you to zoom in, zoom out, and rotate your view of the canvas.

Spending a few minutes exploring these sections before you start drawing will save you a lot of confusion later.

DRAWING BASIC SHAPES AND MODELS

This is where the real fun begins. Paint 3D makes it surprisingly easy to add 3D shapes to your canvas. Let us walk through the process step by step.

HOW TO ACCESS 3D SHAPES

When you open Paint 3D and create a new canvas, look for the 3D Shapes button in the top toolbar — it usually looks like a small cube or sphere icon. Click on it and a panel will appear on the right side of the screen showing you different shape categories.

You will see options like:

• 3D objects (cube, sphere, cylinder, cone, torus, and more)
• Doodles (shapes you can draw freehand and automatically converted to 3D)
• Models (pre-made 3D objects you can import)

ADDING A 3D SHAPE TO YOUR CANVAS

To place a shape on your canvas, simply click the shape you want from the panel, then click and drag on the canvas to draw it. When you release your mouse, the shape appears as a 3D object.

You will notice that the shape has small handles (dots and arrows) around it. These handles let you:

• Resize the shape by dragging the corner handles
• Rotate the shape in different directions using the circular handle
• Move the shape around the canvas by dragging the centre
• Raise or lower the shape in 3D space using the vertical arrow handle

CHANGING COLOURS AND TEXTURES

Once your shape is on the canvas, you can change its appearance using the right-hand panel. You can:

• Choose a solid colour from the colour picker
• Apply a texture (like wood, metal, or stone) to make the shape look more realistic
• Adjust the finish between matte (flat) and gloss (shiny)

Imagine you are making a model of a Nigerian pot (ite oji). You could use a sphere or cylinder shape, apply a brown colour, and set the texture to something that looks like clay. The result will be a digital representation of a real cultural object.

COMBINING SHAPES TO MAKE A MODEL

A single shape is just the beginning. Real 3D modelling involves putting multiple shapes together to form a complete object. This is called model building or composition.

For example, to create a simple table:

• Add a flat, wide cube and resize it to form the tabletop
• Add four thin, tall cylinders below the tabletop to serve as legs
• Arrange and position each shape carefully

To build a simple Nigerian mud house:

• Use a cube for the walls
• Place a cone or triangular prism shape on top as the roof
• Add small rectangles for windows and a door

This is exactly how professional 3D designers work — they start with basic shapes and gradually build complex models by combining and adjusting them.

USING THE DOODLE TOOL FOR CUSTOM SHAPES

If the standard shapes do not match what you have in mind, Paint 3D has a Doodle tool that lets you draw your own custom shape freehand. When you finish drawing, the tool automatically converts your flat drawing into a 3D object that you can reshape and rotate.

This is particularly useful for creating shapes inspired by Nigerian objects like talking drums, akara pots, or even the outline of a Nigerian map.

PRACTICAL APPLICATIONS OF 3D MODELLING IN NIGERIA

You might wonder — why does a JSS 1 student in Nigeria need to learn 3D modelling? The truth is, this skill is becoming increasingly important across many industries and everyday situations.

In Architecture and Housing, architects and builders in Nigeria use 3D modelling software to design buildings before construction begins. Companies in places like Victoria Island in Lagos and Maitama in Abuja present 3D building models to their clients before a single block is laid.

In Education, teachers can use 3D models to explain topics that are hard to visualise. A biology teacher, for example, could show students a 3D model of the human heart instead of drawing a flat diagram on the board.

In Product Design, entrepreneurs who want to design and sell products — like customised jewellery, furniture, or phone cases — often start with 3D models before producing the actual items.

In Entertainment and Animation, Nollywood and Nigerian animation studios like Livespot360 are beginning to use 3D modelling and animation for films, adverts, and music videos.

In Gaming, the Nigerian gaming industry is growing. Young developers are using 3D tools to create characters and environments for mobile games targeting Nigerian audiences.

Learning Paint 3D now gives you a strong foundation that can lead to professional skills in all of these areas.

SAVING AND EXPORTING 3D PROJECTS

After spending time creating a 3D model, the last thing you want is to lose your work. This section explains how to properly save and export your projects in Paint 3D.

SAVING YOUR PROJECT

To save your work in Paint 3D:

• Click the three-line menu icon at the top left of the screen (it looks like three horizontal lines)
• Select Save or Save As
• Choose a location on your computer (for example, your Documents folder or Desktop)
• Give your file a clear name, like "My First 3D House" or "JSS1 3D Project"
• Click Save

When you save in Paint 3D's native format, your file is saved as a .3mf file. This is a special format that preserves all your 3D data, including the positions, colours, and textures of your objects. Always keep a copy in this format so you can come back and edit your work later.

EXPORTING YOUR PROJECT

Sometimes you need to share your 3D model or use it in another application. That is when you export. Exporting means saving your file in a format that other programmes can open.

To export from Paint 3D:

• Click the menu icon at the top left
• Select Export or Save As
• Choose a file format from the options

Common export formats include:

.PNG or .JPEG — these save a flat image (screenshot) of your 3D model. This is useful if you just want to print or share a picture of your design.

.FBX — a popular 3D format used by professional software like Blender and Maya. If you plan to continue working on your model in a more advanced programme later, this is a good choice.

.3MF — the native Paint 3D format, which keeps all 3D information intact and is ideal for 3D printing.

.OBJ — another common 3D format supported by many programmes.

For most JSS 1 students, saving as .3mf for future editing and exporting as .PNG for sharing or printing will be enough.

TIPS FOR MANAGING YOUR 3D FILES

• Always save your work regularly while you are working on it, not just at the end
• Create a dedicated folder on your computer for all your Paint 3D projects
• Give your files meaningful names so you can easily find them later
• If you are working in a school computer lab, save a backup copy to a USB drive or Google Drive

ADVANTAGES AND DISADVANTAGES OF PAINT 3D

Like every tool, Paint 3D has its strengths and limitations. Let us look at both sides.

Advantages:

• It is completely free and pre-installed on Windows computers, which makes it accessible to students all over Nigeria
• The interface is simple and beginner-friendly, making it ideal for JSS students
• It supports both 2D and 3D work on the same canvas
• It is a great starting point before moving on to professional 3D software
• Files can be exported in formats suitable for 3D printing, which is becoming more available in Nigerian universities and tech hubs

Disadvantages:

• It is not as powerful as professional software like Blender, AutoCAD, or Maya, which limits what you can create
• It requires a Windows computer — students using Mac, Chromebook, or mobile phones cannot access it without workarounds
• The Remix 3D online sharing feature has been discontinued, reducing its online collaboration options
• Very detailed or realistic models are difficult to achieve with Paint 3D alone

SAFETY AND ETHICAL CONSIDERATIONS

Even though 3D modelling seems like a purely creative activity, there are important ethical and safety points to keep in mind.

Intellectual property matters. If you create a 3D model that resembles someone else's original design — such as a branded product or famous character — you should not claim it as entirely your own or use it for commercial purposes without permission.

Responsible use of school resources is important. If you are using a school computer, ensure you only use Paint 3D for school-related projects. Do not download unnecessary files or change system settings.

Privacy is key. If your 3D model includes personal details or representations of real people, be respectful and careful about how you share those models online.

Healthy screen time. Long hours in front of a screen can strain your eyes. Take breaks every 30 to 45 minutes, look away from the screen, and ensure you sit in a comfortable position with good lighting.

CLASSROOM AND HOME ACTIVITIES

Activity 1 — My First 3D Object Open Paint 3D on your school or home computer. Use the 3D Shapes tool to place a sphere, cube, and cylinder on the canvas. Change the colour of each shape. Save your work as "My First Shapes."

Activity 2 — Build a Nigerian Object Using combinations of 3D shapes, try to model one of the following: a calabash, a mortar and pestle, or a traditional Nigerian hut. Be creative with colours and textures.

Activity 3 — Label and Export Create a simple 3D model of any object you choose. Add text (using the text tool) to label what your object is. Export the final image as a PNG file and submit to your teacher.

Activity 4 — Class 3D Exhibition Each student creates a 3D model of any Nigerian landmark or everyday object. All exported images are printed and displayed on the class notice board as a "Digital Art Exhibition."

ASSESSMENT QUESTIONS

Objective Questions:

1. What does 3D stand for in 3D modelling? a) Three Designs b) Three Dimensions c) Three Drawings d) Three Displays

2. Which of the following is the native file format used by Paint 3D? a) .MP4 b) .DOCX c) .3MF d) .JPEG

3. Paint 3D is available on which operating system by default? a) macOS b) Android c) Linux d) Windows

4. Which tool in Paint 3D allows you to draw a custom shape that is automatically converted to 3D? a) Brush tool b) Sticker tool c) Doodle tool d) Crop tool

5. What does "exporting" a file mean in Paint 3D? a) Deleting a file from the computer b) Printing a file directly c) Saving a file in a format that other programmes can open d) Sharing a file only on social media

Theory Questions:

1. Explain the difference between 2D drawing and 3D modelling. Use one example to support your answer.

2. Describe three steps you would follow to create a simple 3D model of a table using Paint 3D.

3. Why is it important to save your work regularly and export it in the right file format? Give two reasons.

SUMMARY

In this lesson, we covered the following key points:

• 3D modelling is the process of creating objects with three dimensions — width, height, and depth
• Paint 3D is a free, beginner-friendly 3D modelling tool built into Windows 10 and Windows 11
• The Paint 3D interface includes a canvas, toolbar, menu bar, and properties panel
• You can draw basic 3D shapes (cube, sphere, cylinder, cone) and combine them to form models
• The Doodle tool allows you to create custom shapes by drawing freehand
• You can change the colour, texture, and finish of any 3D object in Paint 3D
• Files should be saved in .3MF format for editing and exported as .PNG or other formats for sharing
• 3D modelling has real-world applications in architecture, education, entertainment, and product design in Nigeria

CONCLUSION

3D modelling is one of the most exciting skills a student can learn in today's world. It bridges creativity and technology in a way that opens doors to careers in design, engineering, animation, gaming, and so much more. The good news is that you do not need expensive software or years of experience to get started. Paint 3D is right there on your Windows computer, waiting for you to explore it.

As a Nigerian student, the ability to create digital models of objects, buildings, and cultural items puts you at a real advantage. Technology is shaping every profession in Nigeria — from construction to fashion to film. By mastering the basics of Paint 3D today, you are laying the foundation for skills that will serve you far into the future.

Open the application, start with a simple shape, and let your imagination do the rest. Every great 3D designer in the world started exactly where you are right now.

FREQUENTLY ASKED QUESTIONS (FAQ)

Is Paint 3D free to use? Yes. Paint 3D comes pre-installed on Windows 10 and Windows 11 computers at no additional cost. You do not need to pay or download anything to use it.

Can I use Paint 3D on my phone or tablet? Paint 3D is designed for Windows computers and is not officially available for Android, iOS, or Mac devices. However, some similar apps like Microsoft 3D Builder may offer limited alternatives.

What is the difference between Paint and Paint 3D? The original Microsoft Paint only supports 2D (flat) drawings. Paint 3D is an upgraded version that supports three-dimensional objects, textures, and more advanced creative features.

Can I 3D print models I create in Paint 3D? Yes! Paint 3D supports the .3MF file format, which is widely used for 3D printing. If your school or a nearby tech hub has a 3D printer, you may be able to print your model.

What careers in Nigeria use 3D modelling? 3D modelling skills are used by architects, interior designers, game developers, animators, product designers, engineers, and even fashion designers. Nigerian companies in Lagos, Abuja, and Port Harcourt are actively seeking people with these skills.

Is Paint 3D suitable for JSS 1 students? Absolutely. Paint 3D was designed to be simple and accessible for beginners of all ages. JSS 1 students can comfortably explore basic shapes, colours, and model building without needing any prior design experience.