//////////////////////////////
//
// Code based on tutorial by Daniel Ilett
// https://danielilett.com/2020-03-21-tut5-urp-cel-shading/
// 
//////////////////////////////

void MainLight_half(float3 WorldPos, out half3 Direction)
{
#if defined(SHADERGRAPH_PREVIEW)
	Direction = half3(0.5, 0.5, 0);
#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;
#endif
}