void Awake()
{
ProceduralDuplication.AddToSimulate(this.gameObject);
Destroy(this);
}
// Use this for initialization
void Awake()
{
//Random.seed = 2;
//Target is the value that represents the surface of mesh
//For example the perlin noise has a range of -1 to 1 so the mid point is were we want the surface to cut through
//The target value does not have to be the mid point it can be any value with in the range
MarchingCubes.SetTarget(-0.8825f);
//Winding order of triangles use 2,1,0 or 0,1,2
MarchingCubes.SetWindingOrder(2, 1, 0);
//Set the mode used to create the mesh
//Cubes is faster and creates less verts, tetrahedrons is slower and creates more verts but better represents the mesh surface
MarchingCubes.SetModeToCubes();
//MarchingCubes.SetModeToTetrahedrons();
//the index of the closest voronoi seed
int[, ,] voxelVoronoi = new int[_width + 1, _height + 1, _length + 1];
//smoothmin distances
float[, ,] voxelSmoothMin = new float[_width + 1, _height + 1, _length + 1];
//final values
float[, ,] voxels = new float[_width + 1, _height + 1, _length + 1];
int x, y, z;
float start = Time.realtimeSinceStartup;
Vector3[] seeds = new Vector3[numSeeds];
for (int i = 0; i < seeds.Length; i++)
{
seeds[i] = new Vector3(Random.value * (_width + 1), Random.value * (_height + 1), Random.value * (_length + 1));
}
//populate the voronoi/smoothmin arrays
for (x = 0; x < _width + 1; x++)
{
for (y = 0; y < _height + 1; y++)
{
for (z = 0; z < _length + 1; z++)
{
Vector3 testPoint = new Vector3(x, y, z);
int closestSeedIndex = 0;
float distance = distanceOfMirrors(testPoint, seeds[0]);
for (int i = 1; i < seeds.Length; i++)
{
float queryDistance = distanceOfMirrors(testPoint, seeds[i]);
if (queryDistance < distance)
{
distance = queryDistance;
closestSeedIndex = i;
}
}
voxelVoronoi[x, y, z] = closestSeedIndex;
voxelSmoothMin[x, y, z] = sminDistance(testPoint, seeds, k);
}
}
}
int yesCount = 0;
int noCount = 0;
//Create a mesh for each seed
for (int i = 0; i < seeds.Length; i++)
{
//Fill voxels with values. Im using perlin noise but any method to create voxels will work
for (x = 0; x < _width + 1; x++)
{
for (y = 0; y < _height + 1; y++)
{
for (z = 0; z < _length + 1; z++)
{
if (voxelVoronoi[x, y, z] != i) //we are not in the correct voronoi cell
{
voxels[x, y, z] = 1; //outside
noCount++;
}
else
{
Vector3 queryPoint = new Vector3(x, y, z);
float distance = distanceOfMirrors(queryPoint, seeds[i]);
distance = voxelSmoothMin[x, y, z] / distance;
voxels[x, y, z] = 1 - (distance * 2); //transform from 0..1 to 1..-1
yesCount++;
}
}
}
}
Mesh mesh = MarchingCubes.CreateMesh(voxels, _scale);
//The diffuse shader wants uvs so just fill with a empty array, there not actually used
mesh.RecalculateNormals();
m_mesh = Instantiate(meshPrefab);
m_mesh.GetComponent <MeshFilter>().mesh = mesh;
//Center mesh
//m_mesh.transform.localPosition = scale * new Vector3(-width / 2, -height / 2, -length / 2);
//meshcolliders need to be added as components to properly initialize
//so I can't put it in the prefab
m_mesh.AddComponent <MeshCollider>();
ProceduralDuplication.AddToDuplicate(m_mesh);
}
Debug.Log("Time take = " + (Time.realtimeSinceStartup - start) * 1000.0f);
}