private void SetBlurredBiomePreviewTexture()
{
Tile tile = (Tile)target;
int res = tile.MeshManager.HeightmapResolution;
BiomeNode[] biomes = TerraConfig.Instance.Graph.GetEndNode().GetBiomes();
BiomeSampler sampler = new BiomeSampler(biomes);
Texture2D tex;
if (biomes.Length == 1)
{
tex = new Texture2D(res, res);
MathUtil.LoopXY(res, (x, y) => {
// Set colors based on how much biome is showing
tex.SetPixel(x, y, biomes[0].PreviewColor);
});
tex.Apply();
_previewTexture = tex;
return;
}
int[,] map = sampler.GetBiomeMap(TerraConfig.Instance, tile.GridPosition, res);
float[,] blurredMap = BlurUtils.GaussianConvolution(map, _tile.PreviewDeviation);
_tile.PreviewGradient = new Gradient();
GradientColorKey[] colorKeys = new GradientColorKey[biomes.Length];
float stepSize = 1f / (biomes.Length - 1);
float offset = 0f;
for (int i = 0; i < biomes.Length; i++)
{
GradientColorKey colorKey = new GradientColorKey {
color = biomes[i].PreviewColor, time = offset
};
colorKeys[i] = colorKey;
offset += stepSize;
}
_tile.PreviewGradient.colorKeys = colorKeys;
//Set texture
tex = new Texture2D(res, res);
MathUtil.LoopXY(res, (x, y) => {
// Set colors based on how much biome is showing
float normalized = blurredMap[x, y] / biomes.Length;
tex.SetPixel(x, y, _tile.PreviewGradient.Evaluate(normalized));
});
tex.Apply();
_previewTexture = tex;
}
private void ExportBlurredBiomeMap()
{
Tile tile = (Tile)target;
int res = tile.MeshManager.HeightmapResolution;
int[,] map = GetBiomeMap();
// float[,] blurred = BlurUtils.BoxBlur(map, 20);
float[,] blurred = BlurUtils.GaussianConvolution(map, 4);
string tileName = tile.name.Replace(" ", "_");
WriteMap(blurred, res, $"{tileName}_blurred_biome_map.txt");
}