/// <summary>
/// Generates sky textures.
/// </summary>
public void GenerateSky()
{
if (noiseTextures != null)
for (int i = 0; i < noiseTextures.Length; i++)
if (noiseTextures[i] != null)
noiseTextures[i].Dispose();
noiseTextures = new ShaderResourceView[4];
for (int i = 0; i < 4; i++)
noiseTextures[i] = new NoiseCube(16, 16, 16).ToTexture3D(graphicsDevice);
}
/// <summary>
/// Generates mesh using some random values interpolated with trilinear interpolation.
/// Uses coordinates transformed with warp values.
/// </summary>
/// <param name="width">Mesh widht.</param>
/// <param name="height">Mesh height.</param>
/// <param name="depth">Mesh depth.</param>
public void GenerateFromNoiseCubeWithWarp(int width, int height, int depth)
{
Voxel[, ,] voxels = new Voxel[width, height, depth];
Vector3 center = new Vector3(width / 2, height / 2, depth / 2);
NoiseCube n0 = new NoiseCube(16, 16, 16);
NoiseCube n1 = new NoiseCube(16, 16, 16);
NoiseCube n2 = new NoiseCube(16, 16, 16);
NoiseCube n3 = new NoiseCube(16, 16, 16);
NoiseCube n4 = new NoiseCube(16, 16, 16);
Parallel.For(0, width, (x) =>
{
for (int y = 0; y < height; y++)
{
for (int z = 0; z < depth; z++)
{
Vector3 position = new Vector3(x, y, z);
float weight = center.Y - y;
float warp = n0.GetInterpolatedValue(x * 0.004, y * 0.004, z * 0.004);
float cx = x + warp * 8;
float cy = y + warp * 8;
float cz = z + warp * 8;
weight += n1.GetInterpolatedValue(cx / 32.04, cy / 32.01, cz / 31.97) * 64.0f;
weight += n2.GetInterpolatedValue(cx / 8.01, cy / 7.96, cz / 7.98) * 4.0f;
weight += n3.GetInterpolatedValue(cx / 4.01, cy / 4.04, cz / 3.96) * 2.0f;
weight += n4.GetInterpolatedValue(cx / 2.02, cy / 1.98, cz / 1.97) * 1.0f;
voxels[x, y, z] = new Voxel()
{
Position = position,
Weight = weight
};
}
}
});
ComputeNormal(voxels);
ComputeAmbient(voxels);
CreateGeometryBuffer(ComputeTriangles(voxels, container.Settings.LevelOfDetail));
}
/// <summary>
/// Generates sky textures.
/// </summary>
public void GenerateSky()
{
if (noiseTextures != null)
{
for (int i = 0; i < noiseTextures.Length; i++)
{
if (noiseTextures[i] != null)
{
noiseTextures[i].Dispose();
}
}
}
noiseTextures = new ShaderResourceView[4];
for (int i = 0; i < 4; i++)
{
noiseTextures[i] = new NoiseCube(16, 16, 16).ToTexture3D(graphicsDevice);
}
}
/// <summary>
/// Generates mesh using mathematical functions.
/// </summary>
/// <param name="width">Mesh width.</param>
/// <param name="height">Mesh height.</param>
/// <param name="depth">Mesh depth.</param>
public void GenerateFromFormula(int width, int height, int depth)
{
Voxel[, ,] voxels = new Voxel[width, height, depth];
float area = (float)Math.Sqrt(width * depth);
Vector3 center = new Vector3(width / 2.0f, height / 2.0f, depth / 2.0f);
Vector3[] pillars = new Vector3[]
{
new Vector3(width / 4.0f, 0, depth / 4.0f),
new Vector3(width * 3.0f / 4.0f, 0, depth * 3.0f / 4.0f),
new Vector3(width * 2.0f / 4.0f, 0, depth / 4.0f)
};
NoiseCube n1 = new NoiseCube(16, 16, 16);
NoiseCube n2 = new NoiseCube(16, 16, 16);
NoiseCube n3 = new NoiseCube(16, 16, 16);
NoiseCube n4 = new NoiseCube(16, 16, 16);
Parallel.For(0, width, (x) =>
{
for (int y = 0; y < height; y++)
{
for (int z = 0; z < depth; z++)
{
Vector3 position = new Vector3(x, y, z);
float weight = 0;
float distanceFromCenter = new Vector2(x - center.X, z - center.Z).Length();
distanceFromCenter = distanceFromCenter < 0.1f ? 0.1f : distanceFromCenter;
// Create pillars.
for (int i = 0; i < pillars.Length; i++)
{
float distance = new Vector2(x - pillars[i].X, z - pillars[i].Z).Length();
distance = distance < 0.1f ? 0.1f : distance;
weight += area / distance;
}
// Subtract values near center.
weight -= area / distanceFromCenter;
// Subtract big values at outer edge.
weight -= (float)Math.Pow(distanceFromCenter, 3) / (float)Math.Pow(area, 1.5f);
// Create helix.
double coordinate = 3 * Math.PI * y / height;
Vector2 helix = new Vector2((float)Math.Cos(coordinate), (float)Math.Sin(coordinate));
weight += Vector2.Dot(helix, new Vector2(x - center.X, z - center.Z));
// Create shelves.
weight += 10 * (float)Math.Cos(coordinate * 4 / 3);
// Add a little randomness.
weight += n1.GetInterpolatedValue(x / 32.04, y / 32.01, z / 31.97) * 8.0f;
weight += n2.GetInterpolatedValue(x / 8.01, y / 7.96, z / 7.98) * 4.0f;
weight += n3.GetInterpolatedValue(x / 4.01, y / 4.04, z / 3.96) * 2.0f;
weight += n4.GetInterpolatedValue(x / 2.02, y / 1.98, z / 1.97) * 1.0f;
voxels[x, y, z] = new Voxel()
{
Position = position,
Weight = weight
};
}
}
});
ComputeNormal(voxels);
ComputeAmbient(voxels);
CreateGeometryBuffer(ComputeTriangles(voxels, container.Settings.LevelOfDetail));
}
/// <summary>
/// Generates mesh using mathematical functions.
/// </summary>
/// <param name="width">Mesh width.</param>
/// <param name="height">Mesh height.</param>
/// <param name="depth">Mesh depth.</param>
public void GenerateFromFormula(int width, int height, int depth)
{
Voxel[, ,] voxels = new Voxel[width, height, depth];
float area = (float)Math.Sqrt(width * depth);
Vector3 center = new Vector3(width / 2.0f, height / 2.0f, depth / 2.0f);
Vector3[] pillars = new Vector3[]
{
new Vector3(width / 4.0f, 0, depth / 4.0f),
new Vector3(width * 3.0f / 4.0f, 0, depth * 3.0f / 4.0f),
new Vector3(width * 2.0f / 4.0f, 0, depth / 4.0f)
};
NoiseCube n1 = new NoiseCube(16, 16, 16);
NoiseCube n2 = new NoiseCube(16, 16, 16);
NoiseCube n3 = new NoiseCube(16, 16, 16);
NoiseCube n4 = new NoiseCube(16, 16, 16);
Parallel.For(0, width, (x) =>
{
for (int y = 0; y < height; y++)
{
for (int z = 0; z < depth; z++)
{
Vector3 position = new Vector3(x, y, z);
float weight = 0;
float distanceFromCenter = new Vector2(x - center.X, z - center.Z).Length();
distanceFromCenter = distanceFromCenter < 0.1f ? 0.1f : distanceFromCenter;
// Create pillars.
for (int i = 0; i < pillars.Length; i++)
{
float distance = new Vector2(x - pillars[i].X, z - pillars[i].Z).Length();
distance = distance < 0.1f ? 0.1f : distance;
weight += area / distance;
}
// Subtract values near center.
weight -= area / distanceFromCenter;
// Subtract big values at outer edge.
weight -= (float)Math.Pow(distanceFromCenter, 3) / (float)Math.Pow(area, 1.5f);
// Create helix.
double coordinate = 3 * Math.PI * y / height;
Vector2 helix = new Vector2((float)Math.Cos(coordinate), (float)Math.Sin(coordinate));
weight += Vector2.Dot(helix, new Vector2(x - center.X, z - center.Z));
// Create shelves.
weight += 10 * (float)Math.Cos(coordinate * 4 / 3);
// Add a little randomness.
weight += n1.GetInterpolatedValue(x / 32.04, y / 32.01, z / 31.97) * 8.0f;
weight += n2.GetInterpolatedValue(x / 8.01, y / 7.96, z / 7.98) * 4.0f;
weight += n3.GetInterpolatedValue(x / 4.01, y / 4.04, z / 3.96) * 2.0f;
weight += n4.GetInterpolatedValue(x / 2.02, y / 1.98, z / 1.97) * 1.0f;
voxels[x, y, z] = new Voxel()
{
Position = position,
Weight = weight
};
}
}
});
ComputeNormal(voxels);
ComputeAmbient(voxels);
CreateGeometryBuffer(ComputeTriangles(voxels, container.Settings.LevelOfDetail));
}
/// <summary>
/// Generates mesh using some random values interpolated with trilinear interpolation.
/// Uses coordinates transformed with warp values.
/// </summary>
/// <param name="width">Mesh widht.</param>
/// <param name="height">Mesh height.</param>
/// <param name="depth">Mesh depth.</param>
public void GenerateFromNoiseCubeWithWarp(int width, int height, int depth)
{
Voxel[, ,] voxels = new Voxel[width, height, depth];
Vector3 center = new Vector3(width / 2, height / 2, depth / 2);
NoiseCube n0 = new NoiseCube(16, 16, 16);
NoiseCube n1 = new NoiseCube(16, 16, 16);
NoiseCube n2 = new NoiseCube(16, 16, 16);
NoiseCube n3 = new NoiseCube(16, 16, 16);
NoiseCube n4 = new NoiseCube(16, 16, 16);
Parallel.For(0, width, (x) =>
{
for (int y = 0; y < height; y++)
{
for (int z = 0; z < depth; z++)
{
Vector3 position = new Vector3(x, y, z);
float weight = center.Y - y;
float warp = n0.GetInterpolatedValue(x * 0.004, y * 0.004, z * 0.004);
float cx = x + warp * 8;
float cy = y + warp * 8;
float cz = z + warp * 8;
weight += n1.GetInterpolatedValue(cx / 32.04, cy / 32.01, cz / 31.97) * 64.0f;
weight += n2.GetInterpolatedValue(cx / 8.01, cy / 7.96, cz / 7.98) * 4.0f;
weight += n3.GetInterpolatedValue(cx / 4.01, cy / 4.04, cz / 3.96) * 2.0f;
weight += n4.GetInterpolatedValue(cx / 2.02, cy / 1.98, cz / 1.97) * 1.0f;
voxels[x, y, z] = new Voxel()
{
Position = position,
Weight = weight
};
}
}
});
ComputeNormal(voxels);
ComputeAmbient(voxels);
CreateGeometryBuffer(ComputeTriangles(voxels, container.Settings.LevelOfDetail));
}
