How Minecraft Works | Chunk Data Generation [C#] [Unity3D]

In this video, I go over how I recreated Minecraft's chunk data generation. This series of 'How Minecraft Works' will go over how I recreated many features of Minecraft on my own, and the code behind it so you can learn from the process.

-= Music =-

*****************************************
Music: Dopamine
Artist : DZGRIMX
*****************************************

Operatic 3 - Vibe Mountain

[Pepius_Julius_Magnus_Maximu...]

The procedural generation code is so beautiful and the whole video feels so comfy to watch, I love these geek videos

[PostVROfficial]

This is amazing! I am also making games and im wanting to get into terrain generation and this is really interesting! Good luck with everything:)

[LegoDinoMan]

Glad to see you hit your 1k subscribers goal

[chewhammer]

wow you are awesome, and very smart keep it up!

[oglothenerd]

Minecraft's terrain generator does a lot more! It doesn't do anything like this! It uses 3D noise, and it uses depth to taper off the density!

[sirgrem]

As much as you think Minecraft is 16 x 256 x 16 per chunk, it is actually divided by 16x16x16 instead, which is then stacked up to work with 3D noise.

[ivansnav]

Great video bro, loving the effort you put into these! Shall the subs increase now...

[Gilxen]

I feel i have coded myself into a corner, this video gives me a new perspective on how i might want to go about it. (my current problem is that all my chunks only generate in the positive x && z directions);

[Smokasaurus]

My man's reverse engineering a game's source code. I'm not sure if it's legal but I like it.

[adnanehaddad]

plz awnser me so i whanted to ask you a bout the perlin noise should i doawnlod it from a site or what i need to do in Unity?

[gamer]

Line 29... HightGen isn't a thing?
Forget that. I'm dumb. Missed a whole line of code.

[chill-guy_-ever]

When i wrote public vectore 2 noise scale = new vectore 2.one and so on the next one

[Mojzer_]

I have a problem, id does not work

Script:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class WorldGenerator : MonoBehaviour
{

public Vector3Int ChunkSize = new Vector3Int(16, 256, 16);
public Vector2 NoiseScale = Vector2.one;
public Vector2 NoiseOffset = Vector2.zero;
[Space]
public int HeightOffset = 60;
public float HeightIntensity = 5f;
private int[, , ] TempData;

// Start is called before the first frame update
void Start()
{
TempData = new int[ChunkSize.x, ChunkSize.y, ChunkSize.z];

for(int x = 0; x < ChunkSize.x; x++)
{
for(int z = 0; z < ChunkSize.z; z++)
{
float PerilinCoordX = NoiseOffset.x + x / (float)ChunkSize.x * NoiseScale.x;
float PerilinCoordY = NoiseOffset.y + z / (float)ChunkSize.z * NoiseScale.y;
int HeightGen = Mathf.RoundToInt(Mathf.PerlinNoise(PerilinCoordX, PerilinCoordY) * HeightIntensity + HeightOffset);

for(int y = HeightGen; y >= 0; y--)
{
int BlockTypeToAssign = 0;

if (y == HeightGen) BlockTypeToAssign = 1;

if (y < HeightGen && y > HeightGen - 4) BlockTypeToAssign = 1;

if (y <= HeightGen - 4 && y > 0) BlockTypeToAssign = 2;

if (y == 0) BlockTypeToAssign = 3;

TempData[x, y, z] = BlockTypeToAssign;
}
}
}
}
}

private void OnDrawGizmos()
{
if(TemData != null)
{
for(int x =0; x < ChunkSize.x; x++)
{
for (int y = 0; y < ChunkSize.y; y++)
{
for (int z = 0; z < ChunkSize.z; z++)
{
switch (TempData[x, y, z])
{
case 0:
continue;
case 1:
Gizmos.color = Color.green;
break;

case 2:
Gizmos.color = Color.yellow;
break;

case 3:
Gizmos.color = Color.gray;
break;

case 4:
Gizmos.color = Color.black;
break;
}
Gizmos.DrawCube(new Vector2(x, y, z), Vector2.one);
}
}
}
}
}