public void AddNewSplatHeights()
{
SplatHeights newSplatHeight = new SplatHeights();
newSplatHeight.tsplatOffset = splatOffset;
newSplatHeight.tsplatNoiseXscale = splatNoiseXscale;
newSplatHeight.tsplatNoiseYscale = splatNoiseYscale;
newSplatHeight.tsplatNoisescaler = splatNoisescaler;
splatHeights.Add(newSplatHeight);
}
public void SplatMaps()
{
splatHeights.RemoveAll(h => h.texture == null);
TerrainLayer[] terrainLayers = new TerrainLayer[splatHeights.Count];
for (int i = 0; i < splatHeights.Count; i++)
{
SplatHeights height = splatHeights[i];
terrainLayers[i] = new TerrainLayer
{
diffuseTexture = height.texture,
tileOffset = height.tileOffset,
tileSize = height.tileSize
};
TerrainLayer layer = terrainLayers[i];
// Create terrain layers folder
string path = Application.dataPath + "/TerrainLayers";
if (System.IO.Directory.Exists(path))
{
System.IO.Directory.CreateDirectory(path);
}
// Create new terrain layer asset
string assetPath = "Assets/TerrainLayers/New Terrain Layer " + i + ".terrainlayer";
AssetDatabase.CreateAsset(layer, assetPath);
terrainLayers[i].diffuseTexture.Apply(true);
Selection.activeObject = gameObject;
}
terrainData.terrainLayers = terrainLayers;
float[,] heightMap = terrainData.GetHeights(0, 0, terrainData.heightmapWidth, terrainData.heightmapHeight);
float[,,] splatmapData = new float[terrainData.alphamapWidth, terrainData.alphamapHeight, terrainData.alphamapLayers];
for (int y = 0; y < terrainData.alphamapHeight; ++y)
{
for (int x = 0; x < terrainData.alphamapWidth; ++x)
{
float[] splat = new float[terrainData.alphamapLayers];
for (int i = 0; i < splatHeights.Count; ++i)
{
float noise = Mathf.PerlinNoise(x * splatHeights[i].splatNoiseXScale, y
* splatHeights[i].splatNoiseYScale)
* splatHeights[i].splatNoiseMultiplier;
float offset = splatHeights[i].splatOffset + noise;
float thisHeightStart = splatHeights[i].minHeight - offset;
float thisHeightStop = splatHeights[i].maxHeight + offset;
//float steepness = GetSteepness( heightMap, x, y,
// terrainData.heightmapWidth,
// terrainData.heightmapHeight);
float steepness = terrainData.GetSteepness(y / (float)terrainData.alphamapHeight,
x / (float)terrainData.alphamapWidth);
if ((heightMap[x, y] >= thisHeightStart &&
heightMap[x, y] <= thisHeightStop) &&
(steepness >= splatHeights[i].minSlope &&
steepness <= splatHeights[i].maxSlope))
{
splat[i] = 1;
}
}
NormalizeVector(splat);
for (int j = 0; j < splatHeights.Count; ++j)
{
splatmapData[x, y, j] = splat[j];
}
}
}
terrainData.SetAlphamaps(0, 0, splatmapData);
}
