vault backup: 2024-03-06 22:21:43
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.obsidian/plugins/various-complements/data.json
vendored
40
.obsidian/plugins/various-complements/data.json
vendored
@ -47,38 +47,6 @@
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},
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"showLogAboutPerformanceInConsole": false,
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"selectionHistoryTree": {
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"UE5中，这些名称有了一定的变化": {
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"UE5中，这些名称有了一定的变化": {
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"currentFile": {
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"count": 1,
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"lastUpdated": 1706168576772
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}
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}
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},
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"MooaToonDataB": {
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"MooaToonDataB": {
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"currentFile": {
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"count": 1,
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"lastUpdated": 1706175926016
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}
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}
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},
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"LightColor": {
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"LightColor": {
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"currentFile": {
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"count": 1,
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"lastUpdated": 1706177275907
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}
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}
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},
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"结构体。具有void": {
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"结构体。具有void": {
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"currentFile": {
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"count": 1,
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"lastUpdated": 1707040198653
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}
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}
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},
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"FRDGViewableResource、FRDGTexture、FRDGTextureSRV、FRDGTextureUAV": {
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"FRDGViewableResource、FRDGTexture、FRDGTextureSRV、FRDGTextureUAV": {
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"currentFile": {
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@ -198,6 +166,14 @@
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"lastUpdated": 1708510269638
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}
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}
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},
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"Velocity": {
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"Velocity": {
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"currentFile": {
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"count": 1,
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"lastUpdated": 1709717543852
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}
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}
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}
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}
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}
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@ -13,7 +13,8 @@ rating: ⭐
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- 星穹铁道
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- UnityChan
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- 破晓传说
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- 蓝色协议3
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- 蓝色协议
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- 蓝色反射
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- 非人学园2
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- 少女前线2 追放
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- https://www.bilibili.com/video/BV1pt421H7EH/?buvid=38ddfe416af6e23f1aada0674f307e3e&from_spmid=tm.recommend.0.0&is_story_h5=false&mid=a0AUwJxrG%2FcYg0AorRjOGA%3D%3D&p=1&plat_id=116&share_from=ugc&share_medium=iphone&share_plat=ios&share_session_id=CD0CF499-8DF5-48F5-A03A-7A3AE61FFF3A&share_source=COPY&share_tag=s_i&spmid=united.player-video-detail.0.0×tamp=1706754945&unique_k=44q6hra&up_id=140517136&vd_source=d47c0bb42f9c72fd7d74562185cee290
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@ -14,40 +14,126 @@ rating: ⭐
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`Engine\Intermediate\ShaderAutogen\PCD3D_SM5`或者`Engine\Intermediate\ShaderAutogen\PCD3D_ES3_1`
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1. ***给FGBufferData添加结构体数据时需要在此添加额外代码逻辑***
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2. GBuffer精度在FetchLegacyGBufferInfo()设置
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2. GBuffer精度在FetchLegacyGBufferInfo()设置。
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3. 是否往GBuffer中写入Velocity，主要靠这个宏**WRITES_VELOCITY_TO_GBUFFER**。具体决定其数值的逻辑位于**FShaderGlobalDefines FetchShaderGlobalDefines**。主要还是靠**r.VelocityOutputPass**进行开启。
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1. PS. MSAA以及VR绝对不会开启Velocity输出选项。还有就是**r.Velocity.ForceOutput**，但经过测试不开启r.VelocityOutputPass依然无法输出。以及FPrimitiveSceneProxy的bAlwaysHasVelocity与bHasWorldPositionOffsetVelocity。
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2. 其他相关FSR、TSR？
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4. 如何添加GBuffer
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1. https://zhuanlan.zhihu.com/p/568775542
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2. https://zhuanlan.zhihu.com/p/677772284
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UE5 GBuffer内容：
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## UE5 GBuffer内容：
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[[UE GBuffer存储数据]]
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```c#
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OutGBufferA = WorldNormal/PerObjectGBufferData
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OutGBufferB = Metallic/Specular/Roughness/EncodeShadingModelIdAndSelectiveOutputMask(GBuffer.ShadingModelID, GBuffer.SelectiveOutputMask);
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OutGBufferC = BaseColor/GBufferAO
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OutGBufferD = GBuffer.CustomData;
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OutGBufferE = GBuffer.PrecomputedShadowFactors;
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OutGBufferA(MRT1) = WorldNormal/PerObjectGBufferData (GBT_Float_16_16_16_16/GBT_Unorm_11_11_10/GBT_Unorm_8_8_8_8)
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OutGBufferB(MRT2) = Metallic/Specular/Roughness/EncodeShadingModelIdAndSelectiveOutputMask (GBT_Float_16_16_16_16/GBT_Unorm_8_8_8_8)
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OutGBufferC(MRT3) = BaseColor/GBufferAO (GBT_Unorm_8_8_8_8)
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OutGBufferD = GBuffer.CustomData (GBT_Unorm_8_8_8_8)
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OutGBufferE = GBuffer.PrecomputedShadowFactors (GBT_Unorm_8_8_8_8)
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TargetVelocity / OutGBufferF = velocity / tangent (默认不开启 带有深度<开启Lumen与距离场 或者 开启光线追踪> GBC_Raw_Float_16_16_16_16 不带深度 GBC_Raw_Float_16_16)
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TargetSeparatedMainDirLight = SingleLayerWater相关 (有SingleLayerWater才会开启 GBC_Raw_Float_11_11_10)
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// 0..1, 2 bits, use CastContactShadow(GBuffer) or HasDynamicIndirectShadowCasterRepresentation(GBuffer) to extract
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half PerObjectGBufferData;
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```
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GBuffer相关信息（精度、顺序）可以参考FetchLegacyGBufferInfo()。
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- 不存在Velocity与Tangent:
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- OutGBufferD(MRT4)
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- OutGBufferD(MRT5)
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- ~~TargetSeparatedMainDirLight(MRT6)~~
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- 存在Velocity：
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- TargetVelocity(MRT4)
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- OutGBufferD(MRT5)
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- OutGBufferE(MRT6)
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- ~~TargetSeparatedMainDirLight(MRT7)~~
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- 存在Tangent：
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- OutGBufferF(MRT4)
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- OutGBufferD(MRT5)
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- OutGBufferE(MRT6)
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- ~~TargetSeparatedMainDirLight(MRT7)~~
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ToonGBuffer修改&数据存储：
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几个动态MRT的存在条件与Shader判断宏：
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***查找IsUsingBasePassVelocity()*** 被使用过的地方。
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class RPGGAMEPLAYABILITY_API USDHCommonSettings : public UDeveloperSettings
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UCLASS(config=Engine, defaultconfig, meta=(DisplayName="Rendering"), MinimalAPI)
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class URendererSettings : public UDeveloperSettings
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UPROPERTY(config, EditAnywhere, Category = VirtualTextures, meta = (
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ConsoleVariable = "r.VirtualTextures", DisplayName = "Enable virtual texture support",
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ToolTip = "When enabled, Textures can be streamed using the virtual texture system. Changing this setting requires restarting the editor.",
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ConfigRestartRequired = true))
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uint32 bVirtualTextures : 1;
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- OutGBufferE(PrecomputedShadowFactors)：r.AllowStaticLighting = 1
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-
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- TargetVelocity：(IsUsingBasePassVelocity(Platform) || Layout == GBL_ForceVelocity) ? 1 : 0;//r.VelocityOutputPass = 1
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-
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- Tangent：false，目前单独使用另一组MRT来存储。
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-
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### ToonGBuffer修改&数据存储
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```c#
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OutGBufferA:PerObjectGBufferData => 可以存储额外的有关Tonn渲染功能参数。
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OutGBufferB:Metallic/Specular/Roughness =>
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? / SpcularMask(控制高光形状与Mask) / ? / ?
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? / SpcularPower(控制高光亮度与Mask) / ? / ?
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//ToonHairMask OffsetShadowMask/SpcularMask/SpecularValue
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OutGBufferC:GBufferAO =>
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OutGBufferD:CustomData.xyzw =>
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ShaderColor.rgb / NoLOffset //ShadowColor这里可以在Material里通过主光向量、ShadowStep、Shadow羽化计算多层阴影效果。
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OutGBufferE:GBuffer.PrecomputedShadowFactors.xyzw =>
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ToonDataID/ ToonObjectID(判断是否是一个物体) /OutlineMask 控制Outline绘制以及Outline强度 / ToonAO
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OutGBufferF:velocity =>
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TargetVelocity / OutGBufferF = velocity / tangent //目前先不考虑输出Velocity的情况
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? / ? / ? / ?
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```
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蓝色协议的方案
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![[蓝色协议的方案#GBuffer]]
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### 是否需要Toon
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在材质中：
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```c++
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FMaterialRelevance UMaterialInterface::GetRelevance_Internal(const UMaterial* Material, ERHIFeatureLevel::Type InFeatureLevel) const
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{
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if(Material)
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{
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//YivanLee's Modify 这里仅仅针对人物，因为它决定了是否开启ToonGBuffer，但是对于ToonLevel，ToonFoliage，ToonGrass这里并不需要开启
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bool bUseToonData = MaterialResource->GetShadingModels().HasAnyShadingModel({ MSM_ToonStandard, MSM_ToonSkin, MSM_ToonHair, MSM_ToonFace, MSM_ToonEyeBrow });
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}
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···
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MaterialRelevance.bUsesToonData = bUseToonData;
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···
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}
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```
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在渲染管线中：
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```c++
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bool FDeferredShadingSceneRenderer::ShouldRenderToonDataPass() const
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{
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if (!SupportsToonDataMaterials(FeatureLevel, ShaderPlatform))
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{
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return false;
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}
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if (IsForwardShadingEnabled(GetFeatureLevelShaderPlatform(FeatureLevel)))
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{
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return false;
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}
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for (auto& View : Views)
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{
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if (View.ShouldRenderView() && View.ParallelMeshDrawCommandPasses[EMeshPass::ToonDataPass].HasAnyDraw())
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{
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return true;
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}
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}
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return false;
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}
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```
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## Toon PerObjectGBufferData具体功能表
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从3开始，0、1、2已被占用。
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- ?
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@ -59,6 +145,55 @@ OutGBufferF:velocity =>
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- PBR高光（使用Roughness控制是否可行？是否需要传入GBuffer一个Mask贴图）
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- 自定义高光：高光贴图、高光颜色、参数化高光形状、多层高光
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# BasePassPixelShader
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Velocity相关代码段：
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```c++
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#if USES_GBUFFER
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// -0.5 .. 0.5, could be optimzed as lower quality noise would be sufficient
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float QuantizationBias = PseudoRandom( MaterialParameters.SvPosition.xy ) - 0.5f;
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GBuffer.IndirectIrradiance = IndirectIrradiance;
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// this is the new encode, the older encode is the #else, keeping it around briefly until the new version is confirmed stable.
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#if 1
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{
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// change this so that we can pack everything into the gbuffer, but leave this for now
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#if GBUFFER_HAS_DIFFUSE_SAMPLE_OCCLUSION
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GBuffer.GenericAO = float(GBuffer.DiffuseIndirectSampleOcclusion) * (1.0f / 255.0f);
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#elif ALLOW_STATIC_LIGHTING
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// No space for AO. Multiply IndirectIrradiance by AO instead of storing.
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GBuffer.GenericAO = EncodeIndirectIrradiance(GBuffer.IndirectIrradiance * GBuffer.GBufferAO) + QuantizationBias * (1.0 / 255.0); // Stationary sky light path
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#else
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GBuffer.GenericAO = GBuffer.GBufferAO; // Movable sky light path
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#endif
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EncodeGBufferToMRT(Out, GBuffer, QuantizationBias);
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if (GBuffer.ShadingModelID == SHADINGMODELID_UNLIT && !STRATA_ENABLED) // Do not touch what strata outputs
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{
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Out.MRT[1] = 0;
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SetGBufferForUnlit(Out.MRT[2]);
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Out.MRT[3] = 0;
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Out.MRT[GBUFFER_HAS_VELOCITY ? 5 : 4] = 0;
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Out.MRT[GBUFFER_HAS_VELOCITY ? 6 : 5] = 0;
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}
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#if SINGLE_LAYER_WATER_SEPARATED_MAIN_LIGHT
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// In deferred, we always output the directional light in a separated buffer.
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// This is used to apply distance field shadows or light function to the main directional light.
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// Strata also writes it through MRT because this is faster than through UAV.
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#if STRATA_ENABLED && STRATA_INLINE_SINGLELAYERWATER
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Out.MRT[(GBUFFER_HAS_VELOCITY ? 2 : 1) + (GBUFFER_HAS_PRECSHADOWFACTOR ? 1 : 0)] = float4(SeparatedWaterMainDirLightLuminance * View.PreExposure, 1.0f);
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#else
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if (GBuffer.ShadingModelID == SHADINGMODELID_SINGLELAYERWATER)
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{
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Out.MRT[(GBUFFER_HAS_VELOCITY ? 6 : 5) + (GBUFFER_HAS_PRECSHADOWFACTOR ? 1 : 0)] = float4(SeparatedWaterMainDirLightLuminance * View.PreExposure, 1.0f);
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}
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#endif
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#endif
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}
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```
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# 顶点色
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## 蓝色协议
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用于存储一些低精度数据，插值即可
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