public void ZeroRadius()
{
var random = new Random(123456);
var d = new SphereDistribution { OuterRadius = 0 };
Assert.AreEqual(new Vector3F(), d.Next(random));
Assert.AreEqual(new Vector3F(), d.Next(random));
Assert.AreEqual(new Vector3F(), d.Next(random));
}
public void ZeroRadius()
{
var random = new Random(123456);
var d = new SphereDistribution {
OuterRadius = 0
};
Assert.AreEqual(new Vector3F(), d.Next(random));
Assert.AreEqual(new Vector3F(), d.Next(random));
Assert.AreEqual(new Vector3F(), d.Next(random));
}
public void Values()
{
var random = new Random(123456);
var d = new SphereDistribution();
for (int i = 0; i < 100; i++)
{
d.InnerRadius = RandomHelper.Random.NextFloat(0, 100);
d.OuterRadius = RandomHelper.Random.NextFloat(0, 100);
var value = d.Next(random);
var radius = value.Length;
Assert.IsTrue(d.InnerRadius < radius && radius < d.OuterRadius ||
d.OuterRadius < radius && radius < d.InnerRadius);
}
}
public void Values()
{
var random = new Random(123456);
var d = new SphereDistribution();
for (int i = 0; i < 100; i++)
{
d.InnerRadius = RandomHelper.Random.NextFloat(0, 100);
d.OuterRadius = RandomHelper.Random.NextFloat(0, 100);
var value = d.Next(random);
var radius = value.Length;
Assert.IsTrue(d.InnerRadius < radius && radius < d.OuterRadius
|| d.OuterRadius < radius && radius < d.InnerRadius);
}
}
// Update is called once per frame
void Update()
{
framecount++;
if (framecount % 20 == 0)
{
UpdateTexture();
}
float distanceToListener = (NA.listener.transform.position - transform.position).magnitude;
if (distanceToListener > 10)
{
return;
}
//compute reflections
SphereDistribution d = new SphereDistribution();
d.CreateSpiral(tap_count);
for (int i = 0; i < tap_count; ++i)
{
Ray ray = new Ray(gameObject.transform.position, d.positions[i]);
RaycastHit hit;
if (Physics.Raycast(ray, out hit))
{
//we hit something, we add a tap to the delay
float distance = (hit.point - gameObject.transform.position).magnitude;
float wall2listener = (hit.point - NA.listener.transform.position).magnitude;
float time = (distance + wall2listener) / 340f * 1f;
if (time < 2f)
{
reflections[i] = time;
}
}
else
{
//nothing here
reflections[i] = 0;
}
}
//tap1 = (int)(delaytime * 44100f);
}
public Vector3F GetAmbientLight(int numberOfSamples)
{
var random = new Random(1234567);
var sphereDistribution = new SphereDistribution
{
Center = Vector3F.Zero,
InnerRadius = 1,
OuterRadius = 1,
};
Vector3F ambient = new Vector3F();
for (int i = numberOfSamples - 1; i >= 0; i--)
{
Vector3F sampleDirection = sphereDistribution.Next(random);
if (sampleDirection.Y < 0)
{
sampleDirection.Y *= -1;
}
Vector3F transmittance;
Vector3F colorR, colorM;
ComputeScattering(sampleDirection, true, out transmittance, out colorR, out colorM);
Debug.Assert(sampleDirection.IsNumericallyNormalized);
Vector3F sample = colorR + colorM + GetBaseColor(sampleDirection);
if (sample.IsNaN)
{
numberOfSamples--; // Ignore sample.
}
else
{
ambient += sample;
}
}
ambient /= numberOfSamples;
// We have added up luminance, now we have to multiply by the solid angle
// of the hemisphere to get illuminance.
return(ambient * ConstantsF.TwoPi);
}
public void Properties()
{
var d = new SphereDistribution();
Assert.AreEqual(0, d.InnerRadius);
Assert.AreEqual(1, d.OuterRadius);
Assert.AreEqual(Vector3F.One, d.Scale);
d.InnerRadius = 2;
Assert.AreEqual(2, d.InnerRadius);
Assert.AreEqual(1, d.OuterRadius);
Assert.AreEqual(Vector3F.One, d.Scale);
d.OuterRadius = 3;
Assert.AreEqual(2, d.InnerRadius);
Assert.AreEqual(3, d.OuterRadius);
Assert.AreEqual(Vector3F.One, d.Scale);
d.Scale = new Vector3F(0.5f, 2, 1.2f);
Assert.AreEqual(2, d.InnerRadius);
Assert.AreEqual(3, d.OuterRadius);
Assert.AreEqual(new Vector3F(0.5f, 2, 1.2f), d.Scale);
}
public void Properties()
{
var d = new SphereDistribution();
Assert.AreEqual(0, d.InnerRadius);
Assert.AreEqual(1, d.OuterRadius);
Assert.AreEqual(Vector3F.One, d.Scale);
d.InnerRadius = 2;
Assert.AreEqual(2, d.InnerRadius);
Assert.AreEqual(1, d.OuterRadius);
Assert.AreEqual(Vector3F.One, d.Scale);
d.OuterRadius = 3;
Assert.AreEqual(2, d.InnerRadius);
Assert.AreEqual(3, d.OuterRadius);
Assert.AreEqual(Vector3F.One, d.Scale);
d.Scale = new Vector3F(0.5f, 2, 1.2f);
Assert.AreEqual(2, d.InnerRadius);
Assert.AreEqual(3, d.OuterRadius);
Assert.AreEqual(new Vector3F(0.5f, 2, 1.2f), d.Scale);
}
public Vector3F GetAmbientLight(int numberOfSamples)
{
var random = new Random(1234567);
var sphereDistribution = new SphereDistribution
{
Center = Vector3F.Zero,
InnerRadius = 1,
OuterRadius = 1,
};
Vector3F ambient = new Vector3F();
for (int i = numberOfSamples - 1; i >= 0; i--)
{
Vector3F sampleDirection = sphereDistribution.Next(random);
if (sampleDirection.Y < 0)
sampleDirection.Y *= -1;
Vector3F transmittance;
Vector3F colorR, colorM;
ComputeScattering(sampleDirection, true, out transmittance, out colorR, out colorM);
Debug.Assert(sampleDirection.IsNumericallyNormalized);
Vector3F sample = colorR + colorM + GetBaseColor(sampleDirection);
if (sample.IsNaN)
numberOfSamples--; // Ignore sample.
else
ambient += sample;
}
ambient /= numberOfSamples;
// We have added up luminance, now we have to multiply by the solid angle
// of the hemisphere to get illuminance.
return ambient * ConstantsF.TwoPi;
}
