exercise: toon shader

introduction to 3d game programming with dx11---chapter 7,exercise 3:

transforming Kd and Ks discrete functions like followingbefore using them in the pixel shader.

void FuncD(in float d,out float Out)
{
if(d <= 0.0)
Out = 0.4;
else if(d > 0.0 && d <= 0.5)
Out = 0.6;
else if(d > 0.5 && d <= 1.0)
Out = 1.0;
}
void FuncS(in float s,out float Out)
{
if(s >= 0.0 && s <= 0.1)
Out = 0.0;
else if(s > 0.1 && s <= 0.8)
Out = 0.5;
else if(s > 0.8 && s <= 1.0)
Out = 0.8;
}