IEnumerator GenerateTerrain()
{
float t = Time.time;
yield return(new WaitForEndOfFrame());
SimplexNoiseGenerator sng = new SimplexNoiseGenerator(seed);
BinaryImage bi = new BinaryImage(tex.width, tex.height, false);
for (int x = 0; x < tex.width; x++)
{
float height = sng.coherentNoise(x / terrainStretch + (transform.position.x * terrainStretch), 0, 0, 1, 200, 1.75f, 2f, 0.9f);
height += sng.coherentNoise(x / terrainStretch + (transform.position.x * terrainStretch), 0, 0, 2, 25, 0.05f, 2f, 0.9f);
height += sng.coherentNoise(x / terrainStretch + (transform.position.x * terrainStretch), 0, 0, 1, 25, 0.1f, 2f, 0.9f);
for (int y = 0; y < tex.height; y++)
{
if (y < height * tex.height + 500)
{
bi.Set(x, y, true);
}
else
{
break;
}
}
}
binaryImage = bi;
binaryImage = tidyBinaryImage(binaryImage);
updateCollider();
Debug.Log((Time.time - t) * 1000f);
}
//Get a float point noise value given a chunk location and an x/z location within that chunk. Uses Simplex Noise from SimplexNoiseGenerator
//Determines y-height of basic terrain heightmap at that x/z location
float pointNoiseVal(int chunkX, int chunkZ, int x, int z)
{
float freq = .1f;
return(noiseGenerator.coherentNoise((x + chunkX) * freq, 0, (z + chunkZ) * freq, 3) * 80);
//Below is old Perlin noise method. keep for posterity.
//return (Mathf.PerlinNoise((x + chunkX) * .05f, (z + chunkZ) * .05f)) * 9 + (Mathf.PerlinNoise((x + chunkX) * .1f, (z + chunkZ) * .1f));
}
public Texture3D GenerateNoise()
{
SimplexNoiseGenerator noise = new SimplexNoiseGenerator();
Color[] colorArray = new Color[_textureSize * _textureSize * _textureSize];
Texture3D texture = new Texture3D(_textureSize, _textureSize, _textureSize, _format, false);
for (int x = 0; x < _textureSize; x++)
{
for (int y = 0; y < _textureSize; y++)
{
for (int z = 0; z < _textureSize; z++)
{
float value = noise.coherentNoise(x, y, z, _octaves, _multiplier, _amplitude, _lacunarity, _persistence);
Color c = new Color(value, 0.0f, 0.0f, 1.0f);
colorArray[x + (y * _textureSize) + (z * _textureSize * _textureSize)] = c;
}
}
}
texture.SetPixels(colorArray);
texture.Apply();
return(texture);
}
