public unsafe void Render(IntPtr bits, int width, int height)
{
Rgb insideColor = new Rgb();
Rgb[] outsideColorTable = Enumerable.Range(0, 255)
.Select(i =>
i <= 20 ? insideColor :
new Rgb
{
r = (byte)i,
g = (byte)i,
b = (byte)i,
})
.ToArray();
Vector3 xStep = camera.frustrumFrontPlane.topRight.Sub(ref camera.frustrumFrontPlane.topLeft).Div(width);
Vector3 yStep = camera.frustrumFrontPlane.bottomLeft.Sub(ref camera.frustrumFrontPlane.topLeft).Div(height);
Rgb* ptr = (Rgb*)bits;
Enumerable.Range(0, height)
.AsParallel()
.ForAll(y =>
{
Console.WriteLine("y:{0} ", y);
for (int x = 0; x < width; x++)
{
int pixelIndex = width * y + x;
Vector3 target = camera.frustrumFrontPlane.topLeft
.Add(xStep.Mul(x))
.Add(yStep.Mul(y));
Vector3 ray = target.Sub(ref camera.pos);
Vector3 hit;
float iterations;
if (HitTest(
origin: camera.pos,
direction: ray.Normalize(),
maxDistance: ray.Len(),
stepSize: bounds.size.x / width,
hitPos: out hit,
iterations: out iterations))
{
// ptr[pixelIndex] = outsideColorTable[(int)(hit.Len() / 12 * 255)];
ptr[pixelIndex] = outsideColorTable[(int)(hit.Sub(ref camera.pos).Len() / 27 * 255)];
}
}
});
}
