x | 読み込み元の x オフセット |
y | 読み込み元の y オフセット |
width | 読み込むアルファマップエリアの幅 |
height | 読み込むアルファマップエリアの高さ |
float[,,] float の 3D 配列。3 番目の次元は、x と y 座標の各 splatmap の混合 weight を表します。
(x, y, width, height)を設定し、てアルファマップを取得します
返される配列は三次元です。 最初のふたつは 地図上の座標 x と y を表し、3 番目は alphamap を適用する splatmap テクスチャを表します。
using UnityEngine; using System.Collections;
public class ExampleClass : MonoBehaviour { // Add some random "noise" to the alphamaps. void AddAlphaNoise(Terrain t, float noiseScale) { float[,,] maps = t.terrainData.GetAlphamaps(0, 0, t.terrainData.alphamapWidth, t.terrainData.alphamapHeight);
for (int y = 0; y < t.terrainData.alphamapHeight; y++) { for (int x = 0; x < t.terrainData.alphamapWidth; x++) { float a0 = maps[x, y, 0]; float a1 = maps[x, y, 1];
a0 += Random.value * noiseScale; a1 += Random.value * noiseScale;
float total = a0 + a1;
maps[x, y, 0] = a0 / total; maps[x, y, 1] = a1 / total; } }
t.terrainData.SetAlphamaps(0, 0, maps); } }
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