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Runtime/HDRP/Shaders/HDRPToonFunction.hlsl

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+float StepAntiAliasing(float x, float y)
+{
+    float v = x - y;
+    return saturate(v / (fwidth(v)+HALF_MIN));//fwidth(x) = abs(ddx(x) + ddy(x))
+}
+
+float Remap(float In, float2 InMinMax, float2 OutMinMax)
+{
+    return OutMinMax.x + (In - InMinMax.x) * (OutMinMax.y - OutMinMax.x) / (InMinMax.y - InMinMax.x);
+}
+
+float3 ToonMaping(float3 x) 
+{
+    x = x * (2.51 * x + 0.03) / (x * (2.43 * x + 0.59) + 0.14);
+    return x;
+}
+
+float3 GetSmoothedWorldNormal(float2 uv, float3x3 t_tbn)
+{
+    float3 normal = float3(uv, 0);
+    normal.z = sqrt(1.0 - saturate(dot(normal.xy, normal.xy)));
+    return mul(normal, t_tbn);
+}