#ifndef URP_FLUIDUTILSSG_INCLUDED
#define URP_FLUIDUTILSSG_INCLUDED

void MainLight_half(float3 WorldPos, out half3 Direction, out half3 Color, out half DistanceAtten, out half ShadowAtten)
{
#if SHADERGRAPH_PREVIEW
   Direction = half3(0.5, 0.5, 0);
   Color = 1;
   DistanceAtten = 1;
   ShadowAtten = 1;
#else
#if SHADOWS_SCREEN
   half4 clipPos = TransformWorldToHClip(WorldPos);
   half4 shadowCoord = ComputeScreenPos(clipPos);
#else
   half4 shadowCoord = TransformWorldToShadowCoord(WorldPos);
#endif
   Light mainLight = GetMainLight(shadowCoord);
   Direction = mainLight.direction;
   Color = mainLight.color;
   DistanceAtten = mainLight.distanceAttenuation;
   ShadowAtten = mainLight.shadowAttenuation;
#endif
}

void DirectSpecular_half(half3 Specular, half Smoothness, half3 Direction, half3 Color, half3 WorldNormal, half3 WorldView, out half3 Out)
{
#if SHADERGRAPH_PREVIEW
   Out = 0;
#else
   Smoothness = exp2(10 * Smoothness + 1);
   WorldNormal = normalize(WorldNormal);
   WorldView = SafeNormalize(WorldView);
   Out = LightingSpecular(Color, Direction, WorldNormal, WorldView, half4(Specular, 0), Smoothness);
#endif
}

#endif