private double GetFitness(Dictionary <string, float> values)
{
var sw = System.Diagnostics.Stopwatch.StartNew();
SetDecimation(polycountTarget, values);
var timeDecim = sw.Elapsed.TotalMilliseconds;
Texture2D textureDecimated = CalibrationUtils.CaptureScreenshot(_camera, 1000, 1000);
Digest modified = ImagePhash.ComputeDigest(CalibrationUtils.ToLuminanceImage(textureDecimated));
var timePhash = sw.Elapsed.TotalMilliseconds;
var fitness = 1f - ImagePhash.GetCrossCorrelation(_originalDigest, modified);
var timeCorrelate = sw.Elapsed.TotalMilliseconds;
sw.Stop();
Debug.Log($"| Decim:{timeDecim}, Phash:{timePhash}, Correlate:{timeCorrelate}");
return(fitness);
}
private void Start()
{
_originalMeshes = new List <Mesh>();
_meshes = new List <Mesh>();
Renderer[] renderers = gameObject.GetComponentsInChildren <Renderer>();
HashSet <Mesh> uniqueMeshes = new HashSet <Mesh>();
foreach (Renderer renderer in renderers)
{
if (renderer is MeshRenderer meshRenderer)
{
MeshFilter meshFilter = renderer.gameObject.GetComponent <MeshFilter>();
if (!meshFilter)
{
continue;
}
Mesh mesh = meshFilter.sharedMesh;
if (!uniqueMeshes.Add(mesh))
{
continue;
}
_originalMeshes.Add(mesh);
// Clone mesh
mesh = meshFilter.sharedMesh = UnityConverter.ToSharedMesh(mesh).ToUnityMesh();
_meshes.Add(mesh);
}
else if (renderer is SkinnedMeshRenderer skinnedMeshRenderer)
{
Mesh mesh = skinnedMeshRenderer.sharedMesh;
if (!uniqueMeshes.Add(mesh))
{
continue;
}
_originalMeshes.Add(mesh);
// Clone mesh
mesh = skinnedMeshRenderer.sharedMesh = mesh.ToSharedMesh().ToUnityMesh();
_meshes.Add(mesh);
}
}
Camera camera = Camera.main;
Texture2D textureOriginal = CalibrationUtils.CaptureScreenshot(camera, 1000, 1000);
File.WriteAllBytes(@"C:\Users\oginiaux\Downloads\trace\original.jpg", textureOriginal.EncodeToJPG());
Digest originalDigest = ImagePhash.ComputeDigest(CalibrationUtils.ToLuminanceImage(textureOriginal));
List <Dictionary <string, float> > results = new List <Dictionary <string, float> >();
float highestCorrelation = float.MinValue;
for (int i = 0; i < iterations; i++)
{
Dictionary <string, float> values = new Dictionary <string, float>();
values["NormalWeight"] = Random.Range(0f, 100f);
values["MergeThreshold"] = Random.Range(0.00001f, 0.1f);
values["MergeNormalsThreshold"] = MathF.Cos(Random.Range(5f, 140f) * MathF.PI / 180f);
values["UseEdgeLength"] = Random.Range(0f, 1f);
values["UpdateFarNeighbors"] = Random.Range(0f, 0.75f);
values["UpdateMinsOnCollapse"] = Random.Range(0.25f, 1f);
values["EdgeBorderPenalty"] = Random.Range(0f, 1000f);
values["Case"] = i;
System.Diagnostics.Stopwatch sw = System.Diagnostics.Stopwatch.StartNew();
SetDecimation(0.5f, values);
sw.Stop();
values["Time"] = (float)sw.Elapsed.TotalMilliseconds;
Texture2D textureDecimated = CalibrationUtils.CaptureScreenshot(camera, 1000, 1000);
Digest modified = ImagePhash.ComputeDigest(CalibrationUtils.ToLuminanceImage(textureDecimated));
values["Correlation"] = ImagePhash.GetCrossCorrelation(originalDigest, modified);
if (highestCorrelation < values["Correlation"])
{
highestCorrelation = values["Correlation"];
File.WriteAllBytes($@"C:\Users\oginiaux\Downloads\trace\case_{i}.jpg", textureDecimated.EncodeToJPG());
}
results.Add(values);
}
foreach (Dictionary <string, float> result in results.OrderByDescending(x => x["Correlation"]).Take(3))
{
StringBuilder strbldr = new StringBuilder();
foreach (KeyValuePair <string, float> pair in result.OrderBy(x => x.Key))
{
strbldr.Append($"{pair.Key} = {pair.Value}\n");
}
Debug.Log(strbldr);
}
}
private void Start()
{
_originalMeshes = new List <Mesh>();
_meshes = new List <Mesh>();
Renderer[] renderers = gameObject.GetComponentsInChildren <Renderer>();
HashSet <Mesh> uniqueMeshes = new HashSet <Mesh>();
foreach (Renderer renderer in renderers)
{
if (renderer is MeshRenderer meshRenderer)
{
MeshFilter meshFilter = renderer.gameObject.GetComponent <MeshFilter>();
if (!meshFilter)
{
continue;
}
Mesh mesh = meshFilter.sharedMesh;
if (!uniqueMeshes.Add(mesh))
{
continue;
}
_originalMeshes.Add(mesh);
// Clone mesh
mesh = meshFilter.sharedMesh = UnityConverter.ToSharedMesh(mesh).ToUnityMesh();
_meshes.Add(mesh);
}
else if (renderer is SkinnedMeshRenderer skinnedMeshRenderer)
{
Mesh mesh = skinnedMeshRenderer.sharedMesh;
if (!uniqueMeshes.Add(mesh))
{
continue;
}
_originalMeshes.Add(mesh);
// Clone mesh
mesh = skinnedMeshRenderer.sharedMesh = mesh.ToSharedMesh().ToUnityMesh();
_meshes.Add(mesh);
}
}
_camera = Camera.main;
Texture2D textureOriginal = CalibrationUtils.CaptureScreenshot(_camera, 1000, 1000);
_originalDigest = ImagePhash.ComputeDigest(CalibrationUtils.ToLuminanceImage(textureOriginal));
switch (metaHeuristicAlgo)
{
case MetaHeuristicAlgo.GeneticAlgorithm:
_metaheuristicAlgorithm = new GeneticAlgorithm <Dictionary <string, float> >(Crossover);
break;
case MetaHeuristicAlgo.HillClimbing:
_metaheuristicAlgorithm = new HillClimb <Dictionary <string, float> >();
break;
}
var config = new Configuration <Dictionary <string, float> >();
config.initializeSolutionFunction = GetInitialState;
config.cloneFunction = Clone;
config.mutationFunction = Mutate;
config.movement = Search.Direction.Optimization;
config.selectionFunction = Selection.RankBased;
config.objectiveFunction = GetFitness;
config.populationSize = populationSize;
config.noOfIterations = iterations;
config.writeToConsole = false;
config.enforceHardObjective = false;
_metaheuristicAlgorithm.Create(config);
StartCoroutine(Run());
}