void UpdateBatch(int lodIdx, int firstComponent, int numComponents)
{
int numInBatch = 0;
// register any nonzero components
for (int i = 0; i < numComponents; i++)
{
float wl = _wavelengths[firstComponent + i];
float pow = _spectrum.GetPower(wl);
float period = wl / ComputeWaveSpeed(wl);
float amp = Mathf.Sqrt(pow / period);
if (amp >= 0.001f)
{
_wavelengthsBatch[numInBatch] = wl;
_ampsBatch[numInBatch] = amp;
_anglesBatch[numInBatch] = Mathf.Deg2Rad * (_windDirectionAngle + _angleDegs[firstComponent + i]);
_phasesBatch[numInBatch] = _phases[firstComponent + i];
numInBatch++;
}
}
if (numInBatch == 0)
{
// no waves to draw - abort
_renderers[lodIdx].enabled = false;
return;
}
// if we didnt fill the batch, put a terminator signal after the last position
if (numInBatch < BATCH_SIZE)
{
_wavelengthsBatch[numInBatch] = 0f;
}
// apply the data to the shape material
_renderers[lodIdx].enabled = true;
_materials[lodIdx].SetFloatArray("_Wavelengths", _wavelengthsBatch);
_materials[lodIdx].SetFloatArray("_Amplitudes", _ampsBatch);
_materials[lodIdx].SetFloatArray("_Angles", _anglesBatch);
_materials[lodIdx].SetFloatArray("_Phases", _phasesBatch);
_materials[lodIdx].SetFloat("_NumInBatch", numInBatch);
}
void UpdateMaterials()
{
for (int i = 0; i < _wavelengths.Length; i++)
{
// Wavelength
_materials[i].SetFloat("_Wavelength", _wavelengths[i]);
// Amplitude
float pow = _spectrum.GetPower(_wavelengths[i]);
float period = _wavelengths[i] / ComputeWaveSpeed(_wavelengths[i]);
_amplitudes[i] = Mathf.Sqrt(pow / period);
_materials[i].SetFloat("_Amplitude", _amplitudes[i]);
// Direction
_materials[i].SetFloat("_Angle", Mathf.Deg2Rad * (_windDirectionAngle + _angleDegs[i]));
// Phase
_materials[i].SetFloat("_Phase", _phases[i]);
}
}
