How To Generate a Voronoi Diagram in Unity

How To Generate a Voronoi Diagram in Unity - Tutorial

Рет қаралды 4,124

Жыл бұрын

How to generate a voronoi diagram using the Unity Engine.
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@vvixell4580 Жыл бұрын

I was trying to make a voronoi diagram from scratch by my self but i got stuck and after a while of scrolling I found this video and it helped me a-lot. The algorithm is doing you dirty, This video is really high quality. Thanks bro ❤

@AlexKDev Жыл бұрын

I'm glad the video was helpful. Thank you 😄

@neilmarkcorre5524 8 ай бұрын

You deserve more subscribers. Well done!

@AlexKDev 8 ай бұрын

Thanks! 😃

@mohammedthaier1718 Жыл бұрын

Interesting technique

@kitchaos1118 7 ай бұрын

This is really helpful! My only suggestion would be to slow down a bit at some points, but besides that, this is great!

@phutureproof 4 ай бұрын

you can slow the video yourself, and rewind it!

@iggyboyo Жыл бұрын

Good video, just had a bit of trouble understanding the part where you actually painted the voronoi shapes

@NickKoll 4 ай бұрын

Great video! Where can we find the code?

@gutzimmumdo4910 2 ай бұрын

this only works if u have points in each cell tho, what if u have 3 points only in random locations.

@off_pudding443 Ай бұрын

You might want to look at Fortune's algorithm.

@starsnatcher4659 2 ай бұрын

can we get the code :>

@MrThijsdc 11 ай бұрын

Hey there, thank you for the video. I was trying to follow along by copying your code (at least the parts visible on the screen) but I cannot get it to work. Could you by any chance provide your full code so I could check whether I made an error somewhere (perhaps you could post it in the description)? Anyways, thanks again for the overview.

@MrThijsdc 11 ай бұрын

I got the script to work by declaring an array of possibleColors and populating it within the script but I can't get it to work when exposing the possiblecolors field to the inspector and populating it from within the inspector.

@undefiant8801 10 ай бұрын

it doesn't work for me either. Found the solution yet?@@MrThijsdc

@omarelsayed7577 6 ай бұрын

@@MrThijsdc I don't understand. Could you post the code?

@MrThijsdc 6 ай бұрын

Sure, no problem. Here is my code: using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.UI; public class voronoiDiagram : MonoBehaviour { private Color[] possibleColors; [SerializeField] private int gridSize = 10; private int imgSize; private int pixelsPerCell; private RawImage image; private Vector2Int[,] pointPositions; private Color[,] colors; private void Awake() { image = GetComponent(); imgSize = Mathf.RoundToInt(image.GetComponent().sizeDelta.x); } private void Start() { GenerateDiagram(); } private void Update() { if(Input.GetKeyDown(KeyCode.Space)) { GenerateDiagram(); } } private void GenerateDiagram() { Texture2D texture = new Texture2D(imgSize, imgSize); texture.filterMode = FilterMode.Point; pixelsPerCell = imgSize / gridSize; possibleColors = new Color[] { new Color(Random.Range(0, 1f),Random.Range(0, 1f), Random.Range(0, 1f)), new Color(Random.Range(0, 1f), Random.Range(0, 1f), Random.Range(0, 1f)), new Color(Random.Range(0, 1f), Random.Range(0, 1f), Random.Range(0, 1f)), new Color(Random.Range(0, 1f), Random.Range(0, 1f), Random.Range(0, 1f)) }; GeneratePoints(); for (int i = 0; i < imgSize; i++) { for (int j = 0; j < imgSize; j++) { int gridX = i / pixelsPerCell; int gridY = j / pixelsPerCell; float nearestDistance = Mathf.Infinity; Vector2Int nearestPoint = new(); for (int a = -1; a < 2; a++) { for (int b = -1; b < 2; b++) { int X = gridX + a; int Y = gridY + b; if (X < 0 || Y < 0 || X >= gridSize || Y >= gridSize) continue; float distance = Vector2Int.Distance(new Vector2Int(i, j), pointPositions[X, Y]); if (distance < nearestDistance) { nearestDistance = distance; nearestPoint = new Vector2Int(X, Y); } } } texture.SetPixel(i, j, colors[nearestPoint.x, nearestPoint.y]); } } texture.Apply(); image.texture = texture; } private void GeneratePoints() { pointPositions = new Vector2Int[gridSize, gridSize]; colors = new Color[gridSize, gridSize]; for (int i = 0; i < gridSize; i++) { for (int j = 0; j < gridSize; j++) { pointPositions[i, j] = new Vector2Int(i * pixelsPerCell + Random.Range(0, pixelsPerCell), j * pixelsPerCell + Random.Range(0, pixelsPerCell)); colors[i, j] = possibleColors[Random.Range(0, possibleColors.Length)]; } } } }

@omarelsayed7577 6 ай бұрын

@@MrThijsdc Thank you so much! It worked. One question though, is there a way I can choose the colors in the inspector rather than make it randomly generated?