void UpdateSceneCaptureContent_RenderThread(FSceneRenderer* SceneRenderer, FTextureRenderTargetResource* TextureRenderTarget, const FName OwnerName, const FResolveParams& ResolveParams, bool bUseSceneColorTexture)
{
FMemMark MemStackMark(FMemStack::Get());
// update any resources that needed a deferred update
FDeferredUpdateResource::UpdateResources();
{
#if WANTS_DRAW_MESH_EVENTS
FString EventName;
OwnerName.ToString(EventName);
SCOPED_DRAW_EVENTF(SceneCapture, DEC_SCENE_ITEMS, TEXT("SceneCapture %s"), *EventName);
#endif
// Render the scene normally
const FRenderTarget* Target = SceneRenderer->ViewFamily.RenderTarget;
FIntRect ViewRect = SceneRenderer->Views[0].ViewRect;
FIntRect UnconstrainedViewRect = SceneRenderer->Views[0].UnconstrainedViewRect;
RHISetRenderTarget(Target->GetRenderTargetTexture(), NULL);
RHIClear(true, FLinearColor::Black, false, 1.0f, false, 0, ViewRect);
SceneRenderer->Render();
// Copy the captured scene into the destination texture
if (bUseSceneColorTexture)
{
// Copy the captured scene into the destination texture
RHISetRenderTarget(Target->GetRenderTargetTexture(), NULL);
RHISetRasterizerState(TStaticRasterizerState<FM_Solid, CM_None>::GetRHI());
RHISetDepthStencilState(TStaticDepthStencilState<false, CF_Always>::GetRHI());
RHISetBlendState(TStaticBlendState<>::GetRHI());
TShaderMapRef<FScreenVS> VertexShader(GetGlobalShaderMap());
TShaderMapRef<FScreenPS> PixelShader(GetGlobalShaderMap());
static FGlobalBoundShaderState BoundShaderState;
SetGlobalBoundShaderState(BoundShaderState, GFilterVertexDeclaration.VertexDeclarationRHI, *VertexShader, *PixelShader);
FRenderingCompositePassContext Context(SceneRenderer->Views[0]);
VertexShader->SetParameters(SceneRenderer->Views[0]);
PixelShader->SetParameters(TStaticSamplerState<SF_Point>::GetRHI(), GSceneRenderTargets.GetSceneColorTexture());
FIntPoint TargetSize(UnconstrainedViewRect.Width(), UnconstrainedViewRect.Height());
DrawRectangle(
ViewRect.Min.X, ViewRect.Min.Y,
ViewRect.Width(), ViewRect.Height(),
ViewRect.Min.X, ViewRect.Min.Y,
ViewRect.Width(), ViewRect.Height(),
TargetSize,
GSceneRenderTargets.GetBufferSizeXY(),
EDRF_UseTriangleOptimization);
}
RHICopyToResolveTarget(TextureRenderTarget->GetRenderTargetTexture(), TextureRenderTarget->TextureRHI, false, ResolveParams);
}
delete SceneRenderer;
}
void FLightSceneInfo::AddToScene()
{
const FLightSceneInfoCompact& LightSceneInfoCompact = Scene->Lights[Id];
// Only need to create light interactions for lights that can cast a shadow,
// As deferred shading doesn't need to know anything about the primitives that a light affects
if (Proxy->CastsDynamicShadow()
|| Proxy->CastsStaticShadow()
// Lights that should be baked need to check for interactions to track unbuilt state correctly
|| Proxy->HasStaticLighting()
// ES2 path supports dynamic point lights in the base pass using forward rendering, so we need to know the primitives
|| (Scene->GetFeatureLevel() < ERHIFeatureLevel::SM4 && Proxy->GetLightType() == LightType_Point && Proxy->IsMovable()))
{
// Add the light to the scene's light octree.
Scene->LightOctree.AddElement(LightSceneInfoCompact);
// TODO: Special case directional lights, no need to traverse the octree.
// Find primitives that the light affects in the primitive octree.
FMemMark MemStackMark(FMemStack::Get());
for(FScenePrimitiveOctree::TConstElementBoxIterator<SceneRenderingAllocator> PrimitiveIt(
Scene->PrimitiveOctree,
GetBoundingBox()
);
PrimitiveIt.HasPendingElements();
PrimitiveIt.Advance())
{
CreateLightPrimitiveInteraction(LightSceneInfoCompact, PrimitiveIt.GetCurrentElement());
}
}
}
void FOcclusionQueryBatcher::Flush(FRHICommandListImmediate& RHICmdList)
{
if(BatchOcclusionQueries.Num())
{
FMemMark MemStackMark(FMemStack::Get());
// Create the indices for MaxBatchedPrimitives boxes.
FIndexBufferRHIParamRef IndexBufferRHI = GOcclusionQueryIndexBuffer.IndexBufferRHI;
// Draw the batches.
for(int32 BatchIndex = 0, NumBatches = BatchOcclusionQueries.Num();BatchIndex < NumBatches;BatchIndex++)
{
FOcclusionBatch& Batch = BatchOcclusionQueries[BatchIndex];
FRenderQueryRHIParamRef BatchOcclusionQuery = Batch.Query;
FVertexBufferRHIParamRef VertexBufferRHI = Batch.VertexAllocation.VertexBuffer->VertexBufferRHI;
uint32 VertexBufferOffset = Batch.VertexAllocation.VertexOffset;
const int32 NumPrimitivesThisBatch = (BatchIndex != (NumBatches-1)) ? MaxBatchedPrimitives : NumBatchedPrimitives;
RHICmdList.BeginRenderQuery(BatchOcclusionQuery);
RHICmdList.SetStreamSource(0, VertexBufferRHI, sizeof(FVector), VertexBufferOffset);
RHICmdList.DrawIndexedPrimitive(
IndexBufferRHI,
PT_TriangleList,
/*BaseVertexIndex=*/ 0,
/*MinIndex=*/ 0,
/*NumVertices=*/ 8 * NumPrimitivesThisBatch,
/*StartIndex=*/ 0,
/*NumPrimitives=*/ 12 * NumPrimitivesThisBatch,
/*NumInstances=*/ 1
);
RHICmdList.EndRenderQuery(BatchOcclusionQuery);
}
INC_DWORD_STAT_BY(STAT_OcclusionQueries,BatchOcclusionQueries.Num());
// Reset the batch state.
BatchOcclusionQueries.Empty(BatchOcclusionQueries.Num());
CurrentBatchOcclusionQuery = NULL;
}
}
bool OSVRHMDDescription::Init(OSVR_ClientContext OSVRClientContext)
{
Valid = false;
static const char* Path = "/display";
#if OSVR_ENABLED
size_t Length;
if (osvrClientGetStringParameterLength(OSVRClientContext, Path, &Length) == OSVR_RETURN_FAILURE)
return false;
FMemMark MemStackMark(FMemStack::Get());
char* Buffer = new (FMemStack::Get()) char[Length];
if (osvrClientGetStringParameter(OSVRClientContext, Path, Buffer, Length) == OSVR_RETURN_FAILURE)
return false;
Valid = GetData(Data).InitFromJSON(Buffer);
#endif // OSVR_ENABLED
return Valid;
}
void FPrimitiveSceneInfo::AddToScene(bool bUpdateStaticDrawLists)
{
check(IsInRenderingThread());
// If we are attaching a primitive that should be statically lit but has unbuilt lighting,
// Allocate space in the indirect lighting cache so that it can be used for previewing indirect lighting
if (Proxy->HasStaticLighting()
&& Proxy->NeedsUnbuiltPreviewLighting()
&& IsIndirectLightingCacheAllowed())
{
FIndirectLightingCacheAllocation* PrimitiveAllocation = Scene->IndirectLightingCache.FindPrimitiveAllocation(PrimitiveComponentId);
if (PrimitiveAllocation)
{
IndirectLightingCacheAllocation = PrimitiveAllocation;
PrimitiveAllocation->SetDirty();
}
else
{
PrimitiveAllocation = Scene->IndirectLightingCache.AllocatePrimitive(this, true);
PrimitiveAllocation->SetDirty();
IndirectLightingCacheAllocation = PrimitiveAllocation;
}
}
if (bUpdateStaticDrawLists)
{
AddStaticMeshes();
}
// create potential storage for our compact info
FPrimitiveSceneInfoCompact LocalCompactPrimitiveSceneInfo;
FPrimitiveSceneInfoCompact* CompactPrimitiveSceneInfo = &LocalCompactPrimitiveSceneInfo;
// if we are being added directly to the Octree, initialize the temp compact scene info,
// and let the Octree make a copy of it
LocalCompactPrimitiveSceneInfo.Init(this);
// Add the primitive to the octree.
check(!OctreeId.IsValidId());
Scene->PrimitiveOctree.AddElement(LocalCompactPrimitiveSceneInfo);
check(OctreeId.IsValidId());
// Set bounds.
FPrimitiveBounds& PrimitiveBounds = Scene->PrimitiveBounds[PackedIndex];
FBoxSphereBounds BoxSphereBounds = Proxy->GetBounds();
PrimitiveBounds.Origin = BoxSphereBounds.Origin;
PrimitiveBounds.SphereRadius = BoxSphereBounds.SphereRadius;
PrimitiveBounds.BoxExtent = BoxSphereBounds.BoxExtent;
PrimitiveBounds.MinDrawDistanceSq = FMath::Square(Proxy->GetMinDrawDistance());
PrimitiveBounds.MaxDrawDistance = Proxy->GetMaxDrawDistance();
// Store precomputed visibility ID.
int32 VisibilityBitIndex = Proxy->GetVisibilityId();
FPrimitiveVisibilityId& VisibilityId = Scene->PrimitiveVisibilityIds[PackedIndex];
VisibilityId.ByteIndex = VisibilityBitIndex / 8;
VisibilityId.BitMask = (1 << (VisibilityBitIndex & 0x7));
// Store occlusion flags.
uint8 OcclusionFlags = EOcclusionFlags::None;
if (Proxy->CanBeOccluded())
{
OcclusionFlags |= EOcclusionFlags::CanBeOccluded;
}
if (Proxy->AllowApproximateOcclusion()
// Allow approximate occlusion if attached, even if the parent does not have bLightAttachmentsAsGroup enabled
|| LightingAttachmentRoot.IsValid())
{
OcclusionFlags |= EOcclusionFlags::AllowApproximateOcclusion;
}
if (VisibilityBitIndex >= 0)
{
OcclusionFlags |= EOcclusionFlags::HasPrecomputedVisibility;
}
Scene->PrimitiveOcclusionFlags[PackedIndex] = OcclusionFlags;
// Store occlusion bounds.
FBoxSphereBounds OcclusionBounds = BoxSphereBounds;
if (Proxy->HasCustomOcclusionBounds())
{
OcclusionBounds = Proxy->GetCustomOcclusionBounds();
}
OcclusionBounds.BoxExtent.X = OcclusionBounds.BoxExtent.X + OCCLUSION_SLOP;
OcclusionBounds.BoxExtent.Y = OcclusionBounds.BoxExtent.Y + OCCLUSION_SLOP;
OcclusionBounds.BoxExtent.Z = OcclusionBounds.BoxExtent.Z + OCCLUSION_SLOP;
OcclusionBounds.SphereRadius = OcclusionBounds.SphereRadius + OCCLUSION_SLOP;
Scene->PrimitiveOcclusionBounds[PackedIndex] = OcclusionBounds;
// Store the component.
Scene->PrimitiveComponentIds[PackedIndex] = PrimitiveComponentId;
bNeedsCachedReflectionCaptureUpdate = true;
{
FMemMark MemStackMark(FMemStack::Get());
// Find lights that affect the primitive in the light octree.
for (FSceneLightOctree::TConstElementBoxIterator<SceneRenderingAllocator> LightIt(Scene->LightOctree, Proxy->GetBounds().GetBox());
LightIt.HasPendingElements();
LightIt.Advance())
{
const FLightSceneInfoCompact& LightSceneInfoCompact = LightIt.GetCurrentElement();
if (LightSceneInfoCompact.AffectsPrimitive(*CompactPrimitiveSceneInfo))
{
FLightPrimitiveInteraction::Create(LightSceneInfoCompact.LightSceneInfo,this);
}
}
}
INC_MEMORY_STAT_BY(STAT_PrimitiveInfoMemory, sizeof(*this) + StaticMeshes.GetAllocatedSize() + Proxy->GetMemoryFootprint());
}
static void UpdatePlanarReflectionContents_RenderThread(
FRHICommandListImmediate& RHICmdList,
FSceneRenderer* MainSceneRenderer,
FSceneRenderer* SceneRenderer,
const FPlanarReflectionSceneProxy* SceneProxy,
FRenderTarget* RenderTarget,
FTexture* RenderTargetTexture,
const FPlane& MirrorPlane,
const FName OwnerName,
const FResolveParams& ResolveParams,
bool bUseSceneColorTexture)
{
QUICK_SCOPE_CYCLE_COUNTER(STAT_RenderPlanarReflection);
FBox PlanarReflectionBounds = SceneProxy->WorldBounds;
bool bIsInAnyFrustum = false;
for (int32 ViewIndex = 0; ViewIndex < SceneRenderer->Views.Num(); ++ViewIndex)
{
FViewInfo& View = SceneRenderer->Views[ViewIndex];
if (View.ViewFrustum.IntersectBox(PlanarReflectionBounds.GetCenter(), PlanarReflectionBounds.GetExtent()))
{
bIsInAnyFrustum = true;
break;
}
}
if (bIsInAnyFrustum)
{
bool bIsVisibleInAnyView = true;
for (int32 ViewIndex = 0; ViewIndex < SceneRenderer->Views.Num(); ++ViewIndex)
{
FViewInfo& View = SceneRenderer->Views[ViewIndex];
FSceneViewState* ViewState = View.ViewState;
if (ViewState)
{
FIndividualOcclusionHistory& OcclusionHistory = ViewState->PlanarReflectionOcclusionHistories.FindOrAdd(SceneProxy->PlanarReflectionId);
// +1 to buffered frames because the query is submitted late into the main frame, but read at the beginning of a reflection capture frame
const int32 NumBufferedFrames = FOcclusionQueryHelpers::GetNumBufferedFrames() + 1;
// +1 to frame counter because we are operating before the main view's InitViews, which is where OcclusionFrameCounter is incremented
uint32 OcclusionFrameCounter = ViewState->OcclusionFrameCounter + 1;
FRenderQueryRHIRef& PastQuery = OcclusionHistory.GetPastQuery(OcclusionFrameCounter, NumBufferedFrames);
if (IsValidRef(PastQuery))
{
uint64 NumSamples = 0;
QUICK_SCOPE_CYCLE_COUNTER(STAT_PlanarReflectionOcclusionQueryResults);
if (RHIGetRenderQueryResult(PastQuery.GetReference(), NumSamples, true))
{
bIsVisibleInAnyView = NumSamples > 0;
if (bIsVisibleInAnyView)
{
break;
}
}
}
}
}
if (bIsVisibleInAnyView)
{
FMemMark MemStackMark(FMemStack::Get());
// update any resources that needed a deferred update
FDeferredUpdateResource::UpdateResources(RHICmdList);
{
#if WANTS_DRAW_MESH_EVENTS
FString EventName;
OwnerName.ToString(EventName);
SCOPED_DRAW_EVENTF(RHICmdList, SceneCapture, TEXT("PlanarReflection %s"), *EventName);
#else
SCOPED_DRAW_EVENT(RHICmdList, UpdatePlanarReflectionContent_RenderThread);
#endif
const FRenderTarget* Target = SceneRenderer->ViewFamily.RenderTarget;
SetRenderTarget(RHICmdList, Target->GetRenderTargetTexture(), NULL, true);
// Note: relying on GBuffer SceneColor alpha being cleared to 1 in the main scene rendering
check(GetSceneColorClearAlpha() == 1.0f);
RHICmdList.Clear(true, FLinearColor(0, 0, 0, 1), false, (float)ERHIZBuffer::FarPlane, false, 0, FIntRect());
// Reflection view late update
if (SceneRenderer->Views.Num() > 1)
{
const FMirrorMatrix MirrorMatrix(MirrorPlane);
for (int32 ViewIndex = 0; ViewIndex < SceneRenderer->Views.Num(); ++ViewIndex)
{
FViewInfo& ReflectionViewToUpdate = SceneRenderer->Views[ViewIndex];
const FViewInfo& UpdatedParentView = MainSceneRenderer->Views[ViewIndex];
ReflectionViewToUpdate.UpdatePlanarReflectionViewMatrix(UpdatedParentView, MirrorMatrix);
}
}
// Render the scene normally
{
SCOPED_DRAW_EVENT(RHICmdList, RenderScene);
SceneRenderer->Render(RHICmdList);
}
for (int32 ViewIndex = 0; ViewIndex < SceneRenderer->Views.Num(); ++ViewIndex)
{
FViewInfo& View = SceneRenderer->Views[ViewIndex];
if (MainSceneRenderer->Scene->GetShadingPath() == EShadingPath::Deferred)
{
PrefilterPlanarReflection<true>(RHICmdList, View, SceneProxy, Target);
}
else
{
PrefilterPlanarReflection<false>(RHICmdList, View, SceneProxy, Target);
}
}
RHICmdList.CopyToResolveTarget(RenderTarget->GetRenderTargetTexture(), RenderTargetTexture->TextureRHI, false, ResolveParams);
}
FSceneRenderer::WaitForTasksClearSnapshotsAndDeleteSceneRenderer(RHICmdList, SceneRenderer);
}
}
}
