public override void InitPath(IPathProcessor buffer)
{
base.InitPath(buffer);
MaxRaysPerPath = 1;
this.scene = pathIntegrator.Scene;
var pssSampler = (PsMltSampler)this.pathIntegrator.Sampler;
this.Radiance = new RgbSpectrum(0f);
this.Throughput = new RgbSpectrum(1f);
if (this.Sample == null || this.Sample.LargeStep || pssSampler.BurnInPhase ||this.Sample.MutationsCount > (pssSampler.MaxMutations))
{
this.Sample = (PsSample)pssSampler.GetSample(this.Sample);
}
else
{
this.Sample.imageX = MC.Mutate(this.Sample.imageX, pssSampler.NextFloat(), pssSampler.NextFloat(),2.0f/(2000),0.1f);
this.Sample.imageY = MC.Mutate(this.Sample.imageY, pssSampler.NextFloat(), pssSampler.NextFloat(), 2.0f / (2000), 0.1f);
pssSampler.TotalSamples++;
}
IRay ray;
pathIntegrator.Scene.Camera.GetRay(Sample.imageX, Sample.imageY, out ray);
this.PathRay = (RayData)ray;
this.RayIndex = -1;
this.pathWeight = 1.0f;
this.tracedShadowRayCount = 0;
this.depth = 0;
this.specularBounce = true;
}
public Sample GetSample(Sample prevSample = null)
{
totalSamples++;
if (prevSample == null)
{
var ns = new PsSample(this);
ns.imageX = ns.GetLazyValue() * screenWidth;
ns.imageY = ns.GetLazyValue() * screenHeight;
ns.pass = pass;
return ns;
}
prevSample.imageX = prevSample.GetLazyValue() * screenWidth;
prevSample.imageY = prevSample.GetLazyValue() * screenHeight;
prevSample.pass = pass;
(prevSample as PsSample).MutationsCount = 0;
(prevSample as PsSample).CurrentDim = 0;
(prevSample as PsSample).MaxDimPrev = 0;
return prevSample;
}
public void Reject(PsSample sample)
{
sample.CurrentDim = 0;
}
public void Accept(PsSample sample)
{
for (int i = 0; i < sample.CurrentDim; i++)
{
sample.PrevSamples[i] = sample.sampleData[i];
}
sample.MaxDimPrev = sample.CurrentDim;
sample.CurrentDim = 0;
}