public override void RenderScene(World world)
{
Vector3 L;
ViewPlane vp = new ViewPlane(world.ViewPlane);
Ray ray = new Ray();
int depth = 0;
Vector2 pp = new Vector2();
vp.S /= Zoom;
ray.Position = Position;
int n = (int)MathHelper.Sqrt((float)vp.NumSamples);
for (int r = 0; r < vp.VRes; r++)
for (int c = 0; c < vp.HRes; c++)
{
L = new Vector3(0, 0, 0);
for (int p = 0; p < n; p++)
for (int q = 0; q < n; q++)
{
pp.X = vp.S * (c - 0.5f * vp.HRes + (q + 0.5f) / n);
pp.Y = vp.S * (r - 0.5f * vp.VRes + (p + 0.5f) / n);
ray.Direction = GetDirection(pp);
L += world.Tracer.TraceRay(ray, depth);
}
L /= ((float)vp.NumSamples);
L *= ExposureTime;
world.Screen.AddPixel(r, c, L);
}
}
public ViewPlane(ViewPlane vp)
{
HRes = vp.HRes;
VRes = vp.VRes;
S = vp.S;
Gamma = vp.Gamma;
Show_Out_Of_gammut = vp.Show_Out_Of_gammut;
sampler = vp.sampler;
NumSamples = vp.NumSamples;
}
public static ViewPlane CreateViewPlaneFromElement(this RElement ele)
{
ViewPlane vp = new ViewPlane();
vp.HRes = ele.Attributes[P.Width].ToInt();
vp.VRes = ele.Attributes[P.Height].ToInt();
vp.NumSamples = ele.Attributes[P.Samples].ToInt();
vp.SetSampler(ele.Attributes[P.Sampler].CreateSamplerFromAttribute(vp.NumSamples));
vp.MaxDepth = ele.Attributes[P.MaxDepth].ToInt();
return vp;
}
public PixelScreen(ViewPlane vp)
{
this.vp = vp;
}
