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パーリンノイズを使って2次元のテクスチャを生成するサンプルです。
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using System.Collections; | |
using System.Collections.Generic; | |
using UnityEngine; | |
using UnityEngine.UI; | |
/// <Summary> | |
/// パーリンノイズのテクスチャを生成するクラスです。 | |
/// </Summary> | |
public class GeneratePerlinTexture2D : MonoBehaviour | |
{ | |
// パーリンノイズのテクスチャを表示するイメージへの参照です。 | |
public RawImage perlinImage; | |
// 生成したテクスチャです。 | |
Texture2D texture; | |
public float xOrigin; | |
public float yOrigin; | |
public float scale = 0.01f; | |
void Start() | |
{ | |
DrawPerli2D(); | |
} | |
void DrawPerli2D() | |
{ | |
int width = (int)perlinImage.rectTransform.sizeDelta.x; | |
int height = (int)perlinImage.rectTransform.sizeDelta.y; | |
texture = new Texture2D(width, height); | |
Color[] colorArray = new Color[width * height]; | |
for (float y = 0; y < height; y++) | |
{ | |
for (float x = 0; x < width; x++) | |
{ | |
float xValue = xOrigin + x * scale; | |
float yValue = yOrigin + y * scale; | |
float perlinValue = Mathf.PerlinNoise(xValue, yValue); | |
colorArray[(int)x + (int)y * width] = new Color(perlinValue, perlinValue, perlinValue); | |
} | |
} | |
texture.SetPixels(colorArray); | |
texture.Apply(); | |
perlinImage.texture = texture; | |
} | |
} |
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