public void DrawMapInEditor()
{
textureData.ApplyToMaterial(terrainMaterial);
textureData.UpdateMeshHeights(terrainMaterial, heightMapSettings.MinHeight, heightMapSettings.MaxHeight);
HeightMap heightMap = HeightMapGenerator.GenerateHeightMap(
meshSettings.NumVerticesPerLine,
meshSettings.NumVerticesPerLine,
heightMapSettings,
Vector2.zero);
switch (drawMode)
{
case DrawMode.NoiseMap:
DrawTexture(TextureGenerator.TextureFromHeightMap(heightMap));
break;
case DrawMode.Mesh:
DrawMesh(
MeshGenerator.GenerateTerrainMesh(heightMap.values, meshSettings, editorPreviewLOD));
break;
case DrawMode.FalloffMap:
DrawTexture(TextureGenerator.TextureFromHeightMap(new HeightMap(FallOffGenerator.GenerateFalloffMap(meshSettings.NumVerticesPerLine), 0, 1)));
break;
case DrawMode.CanyonMap:
DrawTexture(TextureGenerator.TextureFromHeightMap(new HeightMap(CanyonMapGenerator.GenerateCanyonMap(meshSettings.NumVerticesPerLine), 0, 1)));
break;
default:
throw new ArgumentOutOfRangeException();
}
}
public static HeightMap GenerateHeightMap(int width, int height, HeightMapSettings settings, Vector2 sampleCenter)
{
float[,] values = Noise.GenerateNoiseMap(width, height, settings.NoiseSettings, sampleCenter);
float[,] fallOff = new float[0, 0];
float[,] canyon = new float[0, 0];
if (settings.UseFalloffMap)
{
fallOff = FallOffGenerator.GenerateFalloffMap(width);
}
if (settings.UseCanyonMap)
{
canyon = CanyonMapGenerator.GenerateCanyonMap(width);
}
AnimationCurve heighCurveThreadSafe = new AnimationCurve(settings.HeightCurve.keys);
float minValue = float.MaxValue;
float maxValue = float.MinValue;
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
if (settings.UseFalloffMap)
{
values[i, j] -= fallOff[i, j];
}
if (settings.UseCanyonMap)
{
values[i, j] += canyon[i, j];
}
values[i, j] *= heighCurveThreadSafe.Evaluate(values[i, j]) * settings.HeightMultiplier;
if (values[i, j] > maxValue)
{
maxValue = values[i, j];
}
if (values[i, j] < minValue)
{
minValue = values[i, j];
}
}
}
return(new HeightMap(values, minValue, maxValue));
}