MeshInstance3D

Learn to show a 3D mesh in Godot with MeshInstance3D.

Godot Node Tree and MeshInstance3D

In the Godot game engine, scenes are hierarchical tree structures composed of Nodes. To visualize a 3D geometry (Mesh) in the scene, the MeshInstance3D node is used. This node positions its assigned geometry data in 3D space and renders it on screen.

MeshInstance3D meshNode = new MeshInstance3D();
GD.Print("Node ready: " + meshNode.Name);

Mesh Assignment and Primitive Geometries

A 3D geometry resource is assigned to the Mesh property of the MeshInstance3D node. This resource can be an externally imported 3D model or built-in primitive geometries like BoxMesh or SphereMesh. As soon as the geometry is assigned, it renders in the scene view.

BoxMesh box = new BoxMesh();
meshNode.Mesh = box;

Exercise Print Node Information

Access the node.Name property and print it with GD.Print("Dugum: " + node.Name);.

Show example solution

using System;

public class MeshInstance3D
{
    public string Name { get; set; } = "Kup";
    public bool Visible { get; set; } = true;
}

public static class GD
{
    public static void Print(object message) => Console.WriteLine(message);
}

public class Program
{
    public static void Main()
    {
        MeshInstance3D node = new MeshInstance3D();
        GD.Print("Dugum: " + node.Name);
    }
}

Test yourself

Which node is used in Godot 3D to display a 3D mesh geometry in the scene?
- Camera3D
- MeshInstance3D
- AudioStreamPlayer3D
- Node2D
Show answer

MeshInstance3D — MeshInstance3D is the primary Godot node that visualizes 3D models and geometries in the scene.

Instantiate MeshInstance3D Node

MeshInstance3D modelDugumu = new ____();

Show answer

MeshInstance3D modelDugumu = new MeshInstance3D();

Godot 3D Mesh Basics

MeshInstance3D

Node rendering 3D mesh in scene
BoxMesh

Godot's built-in box geometry
Mesh

Resource holding geometry data
GD.Print()

Method to print to Godot console

Next lesson: Camera3D

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