cocos-creator-template/assets/chunks/lighting-models/default-functions/skin.chunk

#include <surfaces/data-structures/standard>
#include <lighting-models/includes/standard>

#define CC_SURFACES_LIGHTING_MODIFY_FINAL_RESULT
void SurfacesLightingModifyFinalResult(inout LightingResult result, in LightingIntermediateData lightingData, in SurfacesMaterialData surfaceData, in LightingMiscData miscData)
{
#if CC_SURFACES_LIGHTING_SSS && !CC_SURFACES_LIGHTING_DISABLE_DIFFUSE
  float sssIntensity = surfaceData.sssParams.x;

  // update lighting data for diffuse calculations
  LightingIntermediateData lightingData3S = lightingData;
  lightingData3S.N = normalize(FSInput_worldNormal);
  lightingData3S.NoL = dot(lightingData3S.N, lightingData.L);
  lightingData3S.NoL = mix(lightingData.NoL, lightingData3S.NoL, sssIntensity);
  lightingData3S.NoLSat = saturate(lightingData3S.NoL);

  float multiplier = lightingData.distAttenuation * lightingData.angleAttenuation;
  result.directDiffuse = CalculateDirectDiffuse(lightingData3S, miscData.lightColorAndIntensity) * multiplier;

  #if !CC_FORWARD_ADD
    result.environmentDiffuse = CalculateEnvironmentDiffuse(lightingData3S, cc_ambientSky.w);
  #endif
#endif
}