// SPDX-License-Identifier: (Not available for this version, you are only allowed to use this software if you have express permission from the copyright holder and agreed to the latest NiloToonURP EULA)
// Copyright (c) 2021 Kuroneko ShaderLab Limited

// For more information, visit -> https://github.com/ColinLeung-NiloCat/UnityURPToonLitShaderExample

// #pragma once is a safe guard best practice in almost every .hlsl,
// doing this can make sure your .hlsl's user can include this .hlsl anywhere anytime without producing any multi include conflict
#pragma once

#if _GENERIC_RIMLIGHT3D
void ApplyNiloToonCharacterGenericRimLight3D(
    inout half3 result,
    ToonSurfaceData surfaceData,
    Varyings input,
    ToonLightingData lightingData,
    Light light,
    half finalShadowArea,
    half inShadow25PercentMul)
{
    float2 genericRimLight3DColorUv = CalcUV(GetUV(input), _GenericRimLight3DColorTex_ST);
    half4 genericRimLight3DColorTex = SAMPLE_TEXTURE2D(_GenericRimLight3DColorTex, sampler_BaseMap, genericRimLight3DColorUv);
#if _FACE_MASK_ON
    half3 genericRimLight3DSmoothedNormalWS = normalize(input.smoothedNormalWS);
#else
    half3 genericRimLight3DSmoothedNormalWS = input.smoothedNormalWS;
#endif
    half3 genericRimLight3DNoNormalMapWS = lerp(lightingData.normalWS_NoNormalMap, genericRimLight3DSmoothedNormalWS, lightingData.isFaceArea);
    half3 genericRimLight3DNormalWS = lerp(lightingData.normalWS, genericRimLight3DSmoothedNormalWS, lightingData.isFaceArea);

    result = ApplyNiloGenericRimLight3D(
        result,
        surfaceData.albedo,
        lightingData.facing,
        genericRimLight3DNoNormalMapWS,
        genericRimLight3DNormalWS,
        lightingData.viewDirectionWS,
        light.direction,
        min(_GlobalMainDirectionalLightMaxContribution, light.color),
        finalShadowArea,
        inShadow25PercentMul,
        genericRimLight3DColorTex,
        _GenericRimLight3DColor,
        _GenericRimLight3DIndirColor,
        _GenericRimLight3DAlpha,
        _GenericRimLight3DMainStrength,
        _GenericRimLight3DEnableLighting,
        _GenericRimLight3DShadowMask,
        _GenericRimLight3DBackfaceMask,
        _GenericRimLight3DBlendMode,
        _GenericRimLight3DDirStrength,
        _GenericRimLight3DDirRange,
        _GenericRimLight3DBorder,
        _GenericRimLight3DBlur,
        _GenericRimLight3DIndirRange,
        _GenericRimLight3DIndirBorder,
        _GenericRimLight3DIndirBlur,
        _GenericRimLight3DNormalStrength,
        _GenericRimLight3DFresnelPower,
        _GenericRimLight3DVRParallaxStrength);
}
#endif