diff --git a/.obsidian/plugins/various-complements/histories.json b/.obsidian/plugins/various-complements/histories.json index c0721db..94d1bc3 100644 --- a/.obsidian/plugins/various-complements/histories.json +++ b/.obsidian/plugins/various-complements/histories.json @@ -1 +1 @@ -{"AI动捕优化思路：":{"AI动捕优化思路：":{"currentFile":{"count":1,"lastUpdated":1731243010285}}},"TODO清单":{"TODO清单":{"internalLink":{"count":1,"lastUpdated":1731553316709}}},"CustomThunk":{"CustomThunk":{"internalLink":{"count":1,"lastUpdated":1731555464503}}},"MobileTAA只做两帧混合":{"MobileTAA只做两帧混合":{"currentFile":{"count":1,"lastUpdated":1731557419798}}},"UMG组件作用笔记":{"UMG组件作用笔记":{"internalLink":{"count":1,"lastUpdated":1731557505574}}},"SequoiaCamShotEvalTemplate":{"SequoiaCamShotEvalTemplate":{"currentFile":{"count":1,"lastUpdated":1732609264076}}},"c++内存泄漏分析工具":{"c++内存泄漏分析工具":{"internalLink":{"count":1,"lastUpdated":1733137754779}}},"Lights":{"Lights":{"currentFile":{"count":1,"lastUpdated":1733637911876}}}} \ No newline at end of file +{"SequoiaCamShotEvalTemplate":{"SequoiaCamShotEvalTemplate":{"currentFile":{"count":1,"lastUpdated":1732609264076}}},"c++内存泄漏分析工具":{"c++内存泄漏分析工具":{"internalLink":{"count":1,"lastUpdated":1733137754779}}},"Lights":{"Lights":{"currentFile":{"count":1,"lastUpdated":1733637911876}}},"FShadowProjectionNoTransformVS（ShadowProjectionNoTransformVS）、FShadowVolumeBoundProjectionVS（ShadowVolumeBoundProjectionVS）":{"FShadowProjectionNoTransformVS（ShadowProjectionNoTransformVS）、FShadowVolumeBoundProjectionVS（ShadowVolumeBoundProjectionVS）":{"currentFile":{"count":1,"lastUpdated":1734345863513}}}} \ No newline at end of file diff --git a/01-Diary/周小结/2024.12.md b/01-Diary/周小结/2024.12.md index 6af1671..0f9b3fe 100644 --- a/01-Diary/周小结/2024.12.md +++ b/01-Diary/周小结/2024.12.md @@ -15,7 +15,12 @@ - [x] 恢复灯牌显影功能 - [x] 帮助跃洋在动画蓝图中使用骨骼缩放的方式制作JiaRan、NaiLin2套衣服的长款版本；并且修改资产名称，解决相关资产的上传问题。 - [x] 添加水晶石场景道具。 -- [ ] 4周年相关工作 +- [x] 4周年相关工作 - [x] 解决王志 4周年舞台 反射球问题。 - [x] 帮罗导添加2个才艺的VJ，更换一个才艺中所有角色为轻量版角色。 - - [ ] \ No newline at end of file + + +# 12.16~12.20 +- [x] 帮助朱雨辰解决： + - [x] 4周年角色不能完全变黑问题。 + - [x] 渲片时的天空球问题切换天空盒问题。 \ No newline at end of file diff --git a/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md b/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md index 810abe0..d649e15 100644 --- a/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md +++ b/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md @@ -901,6 +901,119 @@ void FDeferredShadingSceneRenderer::RenderDeferredShadowProjections( RenderShadowProjections(): 1. 取得当前FVisibleLightInfo、FLightSceneProxy；创建FProjectedShadowInfoArray DistanceFieldShadows、NormalShadows。 2. 遍历VisibleLightInfo.ShadowsToProject，按照阴影特征将每个FProjectedShadowInfo加入DistanceFieldShadows、NormalShadows。 +3. 调用Lambda RenderNormalShadows()来渲染ScreenShadowMaskTexture与ScreenShadowMaskSubPixelTexture。 +4. 遍历DistanceFieldShadows，调用FProjectedShadowInfo->RenderRayTracedDistanceFieldProjection()来渲染距离场阴影。 + +### FSceneRenderer::RenderShadowProjections() +```c++ +void FSceneRenderer::RenderShadowProjections( + FRDGBuilder& GraphBuilder, + FRDGTextureRef OutputTexture, + const FMinimalSceneTextures& SceneTextures, + const FLightSceneProxy* LightSceneProxy, + TArrayView Shadows, + bool bSubPixelShadow, + bool bProjectingForForwardShading) +{ + CheckShadowDepthRenderCompleted(); + + for (int32 ViewIndex = 0; ViewIndex < Views.Num(); ViewIndex++) + { + const FViewInfo& View = Views[ViewIndex]; + const FExclusiveDepthStencil ExclusiveDepthStencil = FExclusiveDepthStencil::DepthRead_StencilWrite; + + if (bSubPixelShadow && !HairStrands::HasViewHairStrandsData(View)) + { + continue; + } + + View.BeginRenderView(); + + // Sanity check + if (bSubPixelShadow) + { + check(View.HairStrandsViewData.VisibilityData.HairOnlyDepthTexture); + } + + FShadowProjectionPassParameters CommonPassParameters; + CommonPassParameters.SceneTextures = SceneTextures.GetSceneTextureShaderParameters(View.FeatureLevel); + CommonPassParameters.HairStrands = HairStrands::BindHairStrandsViewUniformParameters(View); + + if (Strata::IsStrataEnabled()) + { + CommonPassParameters.Strata = Strata::BindStrataGlobalUniformParameters(View); + } + + CommonPassParameters.RenderTargets[0] = FRenderTargetBinding(OutputTexture, ERenderTargetLoadAction::ELoad); + CommonPassParameters.RenderTargets.DepthStencil = + bSubPixelShadow ? + FDepthStencilBinding(View.HairStrandsViewData.VisibilityData.HairOnlyDepthTexture, ERenderTargetLoadAction::ELoad, ERenderTargetLoadAction::ELoad, ExclusiveDepthStencil) : + FDepthStencilBinding(SceneTextures.Depth.Target, ERenderTargetLoadAction::ELoad, ERenderTargetLoadAction::ELoad, ExclusiveDepthStencil); + + RDG_GPU_MASK_SCOPE(GraphBuilder, View.GPUMask); + RDG_EVENT_SCOPE_CONDITIONAL(GraphBuilder, Views.Num() > 1, "View%d", ViewIndex); + + // Project the shadow depth buffers onto the scene. + for (const FProjectedShadowInfo* ProjectedShadowInfo : Shadows) + { + if (ProjectedShadowInfo->bAllocated) + { + // Only project the shadow if it's large enough in this particular view (split screen, etc... may have shadows that are large in one view but irrelevantly small in others) + if (ProjectedShadowInfo->FadeAlphas[ViewIndex] > 1.0f / 256.0f) + { + if (ProjectedShadowInfo->bOnePassPointLightShadow) + { + ProjectedShadowInfo->RenderOnePassPointLightProjection(GraphBuilder, CommonPassParameters, ViewIndex, View, LightSceneProxy, bProjectingForForwardShading, bSubPixelShadow); + } + else + { + ProjectedShadowInfo->RenderProjection(GraphBuilder, CommonPassParameters, ViewIndex, &View, LightSceneProxy, this, bProjectingForForwardShading, bSubPixelShadow); + } + } + } + } + } +} +``` + +### Shader +投射阴影渲染用Shader为： +- ShadowProjectionVertexShader.usf + - FShadowProjectionNoTransformVS：直接输出顶点坐标。 + - FShadowVolumeBoundProjectionVS： +- ShadowProjectionPixelShader.usf + - TShadowProjectionPS + - TShadowProjectionFromTranslucencyPS + - TDirectionalPercentageCloserShadowProjectionPS + - TModulatedShadowProjection + +PS. 向往Blog： 以上可知，对ScreenShadowMaskTexture执行绘制时，是在屏幕空间进行的，并且ScreenShadowMask会被叠加多次（视光源的阴影实例个数而定），不同的通道存储了不同类型的阴影信息。 + +## RenderLight() +```c++ +// Render the light to the scene color buffer, conditionally using the attenuation buffer or a 1x1 white texture as input +if (bDirectLighting) +{ + for (int32 ViewIndex = 0, ViewCount = Views.Num(); ViewIndex < ViewCount; ++ViewIndex) + { + const FViewInfo& View = Views[ViewIndex]; + + // If the light elided the screen space shadow mask, sample directly from the packed shadow mask + int32 VirtualShadowMapId = INDEX_NONE; + if (bElideScreenShadowMask) + { + INC_DWORD_STAT(STAT_VSMLocalProjectionOnePassFast); + VirtualShadowMapId = VisibleLightInfo.GetVirtualShadowMapId(&View); + } + + RDG_EVENT_SCOPE_CONDITIONAL(GraphBuilder, ViewCount > 1, "View%d", ViewIndex); + SCOPED_GPU_MASK(GraphBuilder.RHICmdList, View.GPUMask); + RenderLight(GraphBuilder, Scene, View, SceneTextures, &LightSceneInfo, VirtualShadowMapId != INDEX_NONE ? nullptr : ScreenShadowMaskTexture, LightingChannelsTexture, false /*bRenderOverlap*/, true /*bCloudShadow*/, VirtualShadowMapArray.GetUniformBuffer(), ShadowSceneRenderer->VirtualShadowMapMaskBits, VirtualShadowMapId); + } +} +``` + +使用ScreenShadowMaskTexture来渲染阴影。 # 半程阴影 由晨风&Neverwind提出：