public Gerstner4(GerstnerWave wave0, GerstnerWave wave1, GerstnerWave wave2, GerstnerWave wave3)
{
this.wave0 = wave0;
this.wave1 = wave1;
this.wave2 = wave2;
this.wave3 = wave3;
}
public GerstnerWave[] SelectShorelineWaves(int count, float angle, float coincidenceRange)
{
var list = new List <FoundWave>();
foreach (var spectrum in spectraDataList)
{
if (spectrum.Weight < 0.001f)
{
continue;
}
spectrum.UpdateSpectralValues(windDirection, water.Directionality);
lock (this)
{
var shorelineCandidates = spectrum.ShorelineCandidates;
int countToAdd = count;
for (int i = 0; i < shorelineCandidates.Length && countToAdd != 0; ++i)
{
float waveAngle = Mathf.Atan2(shorelineCandidates[i].nkx, shorelineCandidates[i].nky) * Mathf.Rad2Deg;
if (Mathf.Abs(Mathf.DeltaAngle(waveAngle, angle)) < coincidenceRange && shorelineCandidates[i].amplitude > 0.025f)
{
list.Add(new FoundWave(spectrum, shorelineCandidates[i]));
--countToAdd;
}
}
}
}
list.Sort((a, b) => b.importance.CompareTo(a.importance));
// compute texture offsets from the FFT shader to match Gerstner waves to FFT
Vector2[] offsets = new Vector2[4];
for (int i = 0; i < 4; ++i)
{
float tileSize = windWaves.TileSizes[i];
offsets[i].x = tileSize + (0.5f / windWaves.FinalResolution) * tileSize;
offsets[i].y = -tileSize + (0.5f / windWaves.FinalResolution) * tileSize;
}
int c = Mathf.Min(list.Count, count);
var gerstners = new GerstnerWave[c];
for (int i = 0; i < c; ++i)
{
gerstners[i] = list[list.Count - i - 1].ToGerstner(offsets); // shoreline waves have a reversed order here...
}
return(gerstners);
}
public GerstnerWave[] FindMostMeaningfulWaves(int count, bool mask)
{
var list = new List <FoundWave>();
foreach (var spectrum in spectraDataList)
{
if (spectrum.Weight < 0.001f)
{
continue;
}
spectrum.UpdateSpectralValues(windDirection, water.Directionality);
lock (this)
{
var cpuWaves = GetFilteredCpuWaves();
int numWaves = Mathf.Min(cpuWaves.Length, count);
for (int i = 0; i < numWaves; ++i)
{
list.Add(new FoundWave(spectrum, cpuWaves[i]));
}
}
}
list.Sort((a, b) => b.importance.CompareTo(a.importance));
// compute texture offsets from the FFT shader to match Gerstner waves to FFT
Vector2[] offsets = new Vector2[4];
for (int i = 0; i < 4; ++i)
{
float tileSize = windWaves.TileSizes[i];
offsets[i].x = tileSize + (0.5f / windWaves.FinalResolution) * tileSize;
offsets[i].y = -tileSize + (0.5f / windWaves.FinalResolution) * tileSize;
}
var gerstners = new GerstnerWave[count];
for (int i = 0; i < count; ++i)
{
gerstners[i] = list[i].ToGerstner(offsets);
}
return(gerstners);
}