static private Color color(Ray r, hitable_list world, int depth)
{
hit_record rec;
UnityEngine.Profiling.Profiler.BeginSample("hit");
var isHit = world.hit(r, 0.001f, float.MaxValue, out rec);
UnityEngine.Profiling.Profiler.EndSample();
if (isHit)
{
Ray scatteded;
Color attenuation;
if (depth < 50)
{
UnityEngine.Profiling.Profiler.BeginSample("scattter");
var b = rec.mat.scatter(r, rec, out attenuation, out scatteded);
UnityEngine.Profiling.Profiler.EndSample();
if (b)
{
return(attenuation * color(scatteded, world, depth + 1));
}
else
{
return(Color.black);
}
}
else
{
return(Color.black);
}
}
else
{
var unit_direction = r.direction().normalized;
var t = 0.5f * (unit_direction.y + 1.0f);
return((1.0f - t) * (new Color(1, 1, 1)) + t * (new Color(0.5f, 0.7f, 1.0f)));
}
}
static private Color color(Ray r, hitable_list world, int depth)
{
hit_record rec;
if (world.hit(r, 0.001f, float.MaxValue, out rec))
{
Ray scatteded;
Color attenuation;
if (depth < 50 && rec.mat.scatter(r, rec, out attenuation, out scatteded))
{
return(attenuation * color(scatteded, world, depth + 1));
}
else
{
return(Color.black);
}
}
else
{
var unit_direction = r.direction().normalized;
var t = 0.5f * (unit_direction.y + 1.0f);
return((1.0f - t) * (new Color(1, 1, 1)) + t * (new Color(0.5f, 0.7f, 1.0f)));
}
}