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BlueRose
2025-02-08 13:12:05 +08:00
parent 714b122948
commit b465ab62f5
2 changed files with 42 additions and 40 deletions
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30
03-UnrealEngine/卡通渲染相关资料/演讲笔记/JasonMa/JasonMa渲染方案分析.md
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@@ -459,21 +459,24 @@ FDirectLighting ToonBxDF(FGBufferData GBuffer, half3 N, half3 V, half3 L, float
```c++
...   
float3 LightColorAndAttenuation = AreaLight.FalloffColor * MooaToonContext.LightColor * Falloff;
    ColorSaturationPowerAndScale(LightColorAndAttenuation, View.MooaLightSaturationScale);
...
...
float DiffuseColorRampU = min3(saturate(Shadow.SurfaceShadow + HairShadowOffset), GBuffer.GBufferAO, ShadowGradient);
half4 DiffuseColorRamp = SampleGlobalRamp(View.MooaGlobalDiffuseColorRampAtlas, DiffuseColorRampU, ToonGBuffer.DiffuseColorRampIndex, View.MooaGlobalDiffuseColorRampAtlasHeight);
Shadow.SurfaceShadow = DiffuseColorRampU;
half3 ToonDiffuseColor = GBuffer.DiffuseColor;
half3 ToonShadowColor = ToonGBuffer.MainLightShadowColor * (1 - GBuffer.Metallic) * GetShadowColorIntensity(MooaToonContext);
#if USE_DEVELOPMENT_SHADERS
ToonShadowColor *= View.DiffuseOverrideParameter.w + View.DiffuseOverrideParameter.xyz;
#endif
ToonDiffuseColor = lerp(ToonShadowColor, ToonDiffuseColor, DiffuseColorRamp.a);
Lighting.Diffuse = Diffuse_Lambert(ToonDiffuseColor) * DiffuseColorRamp.rgb * LightColorAndAttenuation;
// Diffuse
BRANCH if (Context.IsMainLight)
{
Shadow.SurfaceShadow = saturate(Shadow.SurfaceShadow + HairShadowValueOffset + MooaToonData.MainLightShadowValueOffset * 2.0f - 1.0f);
LightColorAndAttenuation *= Shadow.SurfaceShadow;
float3 MainLightShadowColor = MooaToonData.MainLightShadowColor * lerp(1, Context.LightColor, MooaToonData.MainLightShadowApplyLightColor) * View.MooaIsGlobalIlluminationEnabled;
Lighting.Diffuse = lerp(MainLightShadowColor, GBuffer.BaseColor * Context.LightColor, Shadow.SurfaceShadow) * PI_INV;
}
else
{
float OtherLightShadowValue = ToonStep(halfNoL, MooaToonData.OtherLightDiffuseFeather, MooaToonData.OtherLightDiffuseThreshold);
// Non-Directional light's SurfaceShadow contains distance attenuation, not just shadowmap
Shadow.SurfaceShadow *= saturate(OtherLightShadowValue + HairShadowValueOffset);
LightColorAndAttenuation *= Shadow.SurfaceShadow;
Lighting.Diffuse = GBuffer.BaseColor * LightColorAndAttenuation * PI_INV;
}
```
# 实用函数
@@ -495,4 +498,3 @@ void GetDistanceFieldFacialShadow(FGBufferData GBuffer, FToonGBufferData ToonGBu
}
```