public PixelBuffer Execute(int width, int height)
{
var pixelBuffer = new PixelBuffer(width, height);
var lowerLeftCorner = new Vector3(-2.0f, -1.0f, -1.0f);
var horizontal = new Vector3(4.0f, 0.0f, 0.0f);
var vertical = new Vector3(0.0f, 2.0f, 0.0f);
var origin = Vector3.Zero;
var camera = new BasicCamera(origin, lowerLeftCorner, horizontal, vertical);
var hitables = new HitableList
{
new Sphere(new Vector3(0.0f, 0.0f, -1.0f), 0.5f, new LambertianMaterial(new ColorTexture(0.8f, 0.3f, 0.3f))),
new Sphere(new Vector3(0.0f, -100.5f, -1.0f), 100.0f, new LambertianMaterial(new ColorTexture(0.8f, 0.8f, 0.0f))),
new Sphere(new Vector3(1.0f, 0.0f, -1.0f), 0.5f, new MetalMaterial(new ColorVector(0.8f, 0.6f, 0.2f), 0.3f)),
new Sphere(new Vector3(-1.0f, 0.0f, -1.0f), 0.5f, new DialectricMaterial(1.5f)),
new Sphere(new Vector3(-1.0f, 0.0f, -1.0f), -0.45f, new DialectricMaterial(1.5f)),
};
var world = new HitableList
{
hitables
};
for (int j = height - 1; j >= 0; j--)
{
for (int i = 0; i < width; i++)
{
ColorVector color = new ColorVector(0.0f, 0.0f, 0.0f);
for (int sample = 0; sample < _numSamples; sample++)
{
float u = Convert.ToSingle(i + RandomService.Nextfloat()) / Convert.ToSingle(width);
float v = Convert.ToSingle(j + RandomService.Nextfloat()) / Convert.ToSingle(height);
var r = camera.GetRay(u, v);
color += GetRayColor(r, world, 0);
}
color /= Convert.ToSingle(_numSamples);
color = color.ApplyGamma2();
pixelBuffer.SetPixelColor(i, j, color);
}
Console.Write(".");
}
Console.WriteLine();
return(pixelBuffer);
}
public PixelBuffer Execute(int width, int height)
{
var pixelBuffer = new PixelBuffer(width, height);
var lowerLeftCorner = new Vector3(-2.0f, -1.0f, -1.0f);
var horizontal = new Vector3(4.0f, 0.0f, 0.0f);
var vertical = new Vector3(0.0f, 2.0f, 0.0f);
var origin = Vector3.Zero;
var camera = new BasicCamera(origin, lowerLeftCorner, horizontal, vertical);
var hitables = new HitableList
{
new Sphere(new Vector3(0.0f, 0.0f, -1.0f), 0.5f),
new Sphere(new Vector3(0.0f, -100.5f, -1.0f), 100.0f)
};
var world = new HitableList
{
hitables
};
for (int j = height - 1; j >= 0; j--)
{
for (int i = 0; i < width; i++)
{
ColorVector color = new ColorVector(0.0f, 0.0f, 0.0f);
for (int sample = 0; sample < _numSamples; sample++)
{
float u = Convert.ToSingle(i + GetRandom()) / Convert.ToSingle(width);
float v = Convert.ToSingle(j + GetRandom()) / Convert.ToSingle(height);
var r = camera.GetRay(u, v);
color += GetRayColor(r, world);
}
color /= Convert.ToSingle(_numSamples);
pixelBuffer.SetPixelColor(i, j, color);
}
Console.Write(".");
}
Console.WriteLine();
return(pixelBuffer);
}