public static void EditorGenerateBaseCloudNoise()
{
int resolution = 256;
Texture2D cpuBaseNoiseTexture = new Texture2D(resolution, resolution, TextureFormat.RGBAFloat, false, true);
cpuBaseNoiseTexture.wrapMode = TextureWrapMode.Repeat;
cpuBaseNoiseTexture.filterMode = FilterMode.Trilinear;
Vector4[] pixels = new Vector4[resolution * resolution];
for (int x = 0; x < resolution; x++)
{
for (int y = 0; y < resolution; y++)
{
Vector4 result = Vector4.zero;
Vector3 coord = new Vector3(x / (float)(resolution), y / (float)(resolution), 0.5f);
result.x = WNG.OctaveNoise(coord, 8, 9, 4);
result.y = 0.625f * WNG.OctaveNoise(coord, 3, 15, 7) +
0.250f * WNG.OctaveNoise(coord, 3, 30, 5) +
0.125f * WNG.OctaveNoise(coord, 3, 40, 6);
result.z = 1.0f - WNG.OctaveNoise(coord + new Vector3(0.5f, 0.5f, 0.5f), 6, 75);
pixels[x + y * resolution] = result;
}
}
List <byte> data = new List <byte>();
foreach (Vector4 v in pixels)
{
byte[] buff = new byte[sizeof(float) * 4];
Buffer.BlockCopy(BitConverter.GetBytes(v.x), 0, buff, 0 * sizeof(float), sizeof(float));
Buffer.BlockCopy(BitConverter.GetBytes(v.y), 0, buff, 1 * sizeof(float), sizeof(float));
Buffer.BlockCopy(BitConverter.GetBytes(v.z), 0, buff, 2 * sizeof(float), sizeof(float));
Buffer.BlockCopy(BitConverter.GetBytes(v.w), 0, buff, 3 * sizeof(float), sizeof(float));
data.AddRange(buff);
}
cpuBaseNoiseTexture.LoadRawTextureData(data.ToArray());
cpuBaseNoiseTexture.Apply();
UnityEditor.AssetDatabase.CreateAsset(cpuBaseNoiseTexture, string.Format("{0}Clouds/baseNoise.asset", baseFolder));
UnityEditor.AssetDatabase.SaveAssets();
}
public static void EditorGenerateCloudDetailNoise()
{
int resolution = 45;
Texture3D cpuDetailNoiseTexture = new Texture3D(resolution, resolution, resolution, TextureFormat.RGBAFloat, false);
cpuDetailNoiseTexture.wrapMode = TextureWrapMode.Repeat;
cpuDetailNoiseTexture.filterMode = FilterMode.Trilinear;
Color[] pixels = new Color[resolution * resolution * resolution];
for (int x = 0; x < resolution; x++)
{
for (int y = 0; y < resolution; y++)
{
for (int z = 0; z < resolution; z++)
{
Vector3 coord = new Vector3(x / (float)(resolution), y / (float)(resolution), z / (float)(resolution));
float r = WNG.OctaveNoise(coord, 16, 3);
float g = WNG.OctaveNoise(coord, 4, 8);
float b = WNG.OctaveNoise(coord, 4, 16);
float c = Mathf.Max(0.0f, 1.0f - (r + g * 0.5f + b * 0.25f) / 1.75f);
float c2 = Mathf.Max(0.0f, 1.0f - (g + r * 0.5f + b * 0.25f) / 1.75f);
float c3 = Mathf.Max(0.0f, 1.0f - (r + b * 0.5f + g * 0.25f) / 1.75f);
pixels[x + y * resolution + z * resolution * resolution] = new Color(c, c2, c3, 1);
}
}
}
cpuDetailNoiseTexture.SetPixels(pixels);
cpuDetailNoiseTexture.Apply();
UnityEditor.AssetDatabase.CreateAsset(cpuDetailNoiseTexture, string.Format("{0}Clouds/detailNoise.asset", baseFolder));
UnityEditor.AssetDatabase.SaveAssets();
}
