Diffuse = MainDiffuse;
Specular = MainSpecular;
Color = MainColor * (MainDiffuse + MainSpecular);

#ifndef SHADERGRAPH_PREVIEW

    uint pixelLightCount = GetAdditionalLightsCount();
	
	LIGHT_LOOP_BEGIN(pixelLightCount)
		//get light color and direction
		lightIndex = GetPerObjectLightIndex(lightIndex);
		Light light = GetAdditionalPerObjectLight(lightIndex, WorldPosition);
		
		//calculate shadows
		light.shadowAttenuation = AdditionalLightRealtimeShadow(lightIndex, WorldPosition, light.direction);
		float atten = light.distanceAttenuation * light.shadowAttenuation;
		
		//calculate diffuse and specular
		float NdotL = saturate(dot(WorldNormal, light.direction));
		float thisDiffuse = atten * NdotL;
		float3 thisSpecular = LightingSpecular(thisDiffuse, light.direction, WorldNormal, WorldView, 1, Smoothness);
		
		//accumulate light
		Diffuse += thisDiffuse;
		Specular += thisSpecular;
		Color += light.color * (thisDiffuse + thisSpecular);
	LIGHT_LOOP_END

	float total = Diffuse + dot(Specular, float3(0.333, 0.333, 0.333));
	Color = total <= 0 ? MainColor : Color / total;
#endif