public Color Integrate(Ray ray, IIntersectable objects, List <ILight> lights, ISampler sampler, List <List <Sample> > subPathSamples, LightSample lightSample)
{
shadowIntegrator = new ShadowIntegrator();
Color returnColor = new Color(0, 0, 0);
HitRecord record = objects.Intersect(ray);
if (record != null)
{
if (!(record.Material is MirrorMaterial))
{
returnColor.Append(shadowIntegrator.Integrate(ray, objects, lights, sampler, subPathSamples, lightSample));
}
if (record.Material is MirrorMaterial && record.Material.Specular.R > 0 && record.Material.Specular.G > 0 && record.Material.Specular.B > 0)
{
returnColor.Append(Reflection(ray, record, 0, returnColor, objects, lights, sampler, subPathSamples, lightSample));
}
}
else
{
if (SkyBox.IsSkyBoxLoaded())
{
returnColor = SkyBox.GetSkyBoxColor(ray);
}
}
return(returnColor);
}
private Color Reflection(Ray ray, HitRecord record, int noOfBounce, Color color, IIntersectable objects, List <ILight> lights, ISampler sampler, List <List <Sample> > subPathSamples, LightSample lightSample)
{
Color ks = record.Material.Specular;
if (noOfBounce == Constants.MaximumRecursionDepth)
{
return(shadowIntegrator.Integrate(ray, objects, lights, sampler, subPathSamples, lightSample).Mult(ks));
}
Ray reflectedRay = record.CreateReflectedRay();
HitRecord reflectRecord = objects.Intersect(reflectedRay);
if (reflectRecord.HitObject != null)
{
if (reflectRecord.Material is MirrorMaterial)
{
Color c = Reflection(reflectedRay, reflectRecord, ++noOfBounce, color, objects, lights, sampler, subPathSamples, lightSample);
c.Append(shadowIntegrator.Integrate(reflectedRay, objects, lights, sampler, subPathSamples, lightSample).Mult(ks));
return(c);
}
else
{
return(shadowIntegrator.Integrate(reflectedRay, objects, lights, sampler, subPathSamples, lightSample).Mult(ks));
}
}
else
{
if (SkyBox.IsSkyBoxLoaded())
{
color = SkyBox.GetSkyBoxColor(ray);
}
}
return(color);
}
public Color Integrate(Ray ray, IIntersectable objects, List <ILight> lights, ISampler sampler, List <List <Sample> > subPathSamples, LightSample lightSample)
{
scene = objects;
this.lights = lights;
this.sampler = sampler;
HitRecord record = scene.Intersect(ray);
if (record == null)
{
if (SkyBox.IsSkyBoxLoaded())
{
return(SkyBox.GetSkyBoxColor(ray));
}
return(new Color(0, 0, 0));
}
if (record.HitObject.Light != null)
{
return(record.HitObject.Light.LightColor);
}
return(PathTrace(ray, record, subPathSamples, lightSample));
}
