Introduction to 3D Modelling

1. Introduction

Goal of this tutorial:
This tutorial aims to provide a basic understanding of 3D modelling, focusing on how these skills can be applied to create models for the Metaverse. By the end of this tutorial, you will have a solid foundation to start creating your own 3D objects.

What you will learn:
- Basics of 3D modelling
- Understanding of vertices, edges, faces and meshes
- Creating simple 3D shapes
- Applying textures and colours
- Exporting your model for use in the Metaverse

Prerequisites:
No previous experience with 3D modelling is required. However, a basic understanding of computer graphics would be advantageous. Download and install the free 3D modelling software, Blender.

2. Step-by-Step Guide

2.1 Understanding Core Concepts

Vertices, Edges, and Faces
In 3D modelling, we work with vertices, edges, and faces to create complex shapes. Vertices are points in 3D space, edges are lines that connect two vertices, and faces are flat surfaces enclosed by edges.

Meshes
A mesh is a collection of vertices, edges, and faces that defines the shape of a 3D object. By manipulating these elements, we can create virtually any shape imaginable.

2.2 Creating a Simple 3D Shape

Start with a simple shape, like a cube. In Blender, you can add a cube by selecting Add > Mesh > Cube from the menu.

2.3 Applying Textures and Colours

To give your 3D object a more realistic appearance, you can apply textures and colours to it. In Blender, you can do this by selecting the object, then going to the Properties panel and selecting the Materials tab.

2.4 Exporting Your Model

After you've finished your model, you can export it for use in the Metaverse. In Blender, you can do this by selecting File > Export > .glb/.gltf.

3. Code Examples

Blender uses Python for scripting. Here's an example of how to create a cube in Blender using Python:

# Import the necessary module
import bpy

# Set the dimensions of the cube
size = 1

# Create a cube
bpy.ops.mesh.primitive_cube_add(size=size)

# The newly created cube is now the active object
cube = bpy.context.active_object

4. Summary

In this tutorial, we've covered the basics of 3D modelling, including understanding vertices, edges, faces, and meshes, creating simple shapes, applying textures and colours, and exporting your models for use in the Metaverse.

5. Practice Exercises

1. Create a Sphere: Using the concepts learned in this tutorial, create a 3D model of a sphere. Apply a texture to your sphere.
2. Create a House: Create a simple 3D model of a house. This will involve creating multiple shapes and combining them.
3. Create a Complex Shape: Use your creativity to create a complex 3D shape. This will require the use of all the concepts covered in this tutorial.

For further practice and learning, consider exploring more advanced topics in 3D modelling such as sculpting, rigging and animation.