bool FShaderResource::ArePlatformsCompatible(EShaderPlatform CurrentPlatform, EShaderPlatform TargetPlatform)
{
bool bFeatureLevelCompatible = CurrentPlatform == TargetPlatform;
if (!bFeatureLevelCompatible && IsPCPlatform(CurrentPlatform) && IsPCPlatform(TargetPlatform) )
{
if (CurrentPlatform == SP_OPENGL_SM4_MAC || TargetPlatform == SP_OPENGL_SM4_MAC)
{
// prevent SP_OPENGL_SM4 == SP_OPENGL_SM4_MAC, allow SP_OPENGL_SM4_MAC == SP_OPENGL_SM4_MAC,
// allow lesser feature levels on SP_OPENGL_SM4_MAC device.
// do not allow MAC targets to work on non MAC devices.
bFeatureLevelCompatible = CurrentPlatform == SP_OPENGL_SM4_MAC &&
GetMaxSupportedFeatureLevel(CurrentPlatform) >= GetMaxSupportedFeatureLevel(TargetPlatform);
}
else
{
bFeatureLevelCompatible = GetMaxSupportedFeatureLevel(CurrentPlatform) >= GetMaxSupportedFeatureLevel(TargetPlatform);
}
bool bIsTargetD3D = TargetPlatform == SP_PCD3D_SM5 ||
TargetPlatform == SP_PCD3D_SM4 ||
TargetPlatform == SP_PCD3D_ES3_1 ||
TargetPlatform == SP_PCD3D_ES2;
bool bIsCurrentPlatformD3D = CurrentPlatform == SP_PCD3D_SM5 ||
CurrentPlatform == SP_PCD3D_SM4 ||
TargetPlatform == SP_PCD3D_ES3_1 ||
CurrentPlatform == SP_PCD3D_ES2;
bFeatureLevelCompatible = bFeatureLevelCompatible && (bIsCurrentPlatformD3D == bIsTargetD3D);
}
return bFeatureLevelCompatible;
}
void FForwardShadingSceneRenderer::ConditionalResolveSceneDepth(FRHICommandListImmediate& RHICmdList)
{
FSceneRenderTargets& SceneContext = FSceneRenderTargets::Get(RHICmdList);
SceneContext.ResolveSceneDepthToAuxiliaryTexture(RHICmdList);
#if !PLATFORM_HTML5
auto ShaderPlatform = ViewFamily.GetShaderPlatform();
if (IsMobilePlatform(ShaderPlatform)
&& !IsPCPlatform(ShaderPlatform)) // exclude mobile emulation on PC
{
bool bSceneDepthInAlpha = (SceneContext.GetSceneColor()->GetDesc().Format == PF_FloatRGBA);
bool bOnChipDepthFetch = (GSupportsShaderDepthStencilFetch || (bSceneDepthInAlpha && GSupportsShaderFramebufferFetch));
if (!bOnChipDepthFetch)
{
// Only these features require depth texture
bool bDecals = ViewFamily.EngineShowFlags.Decals && Scene->Decals.Num();
bool bModulatedShadows = ViewFamily.EngineShowFlags.DynamicShadows && GetShadowQuality() > 0 && bModulatedShadowsInUse;
if (bDecals || bModulatedShadows)
{
// Switch target to force hardware flush current depth to texture
FTextureRHIRef DummySceneColor = GSystemTextures.BlackDummy->GetRenderTargetItem().TargetableTexture;
FTextureRHIRef DummyDepthTarget = GSystemTextures.DepthDummy->GetRenderTargetItem().TargetableTexture;
SetRenderTarget(RHICmdList, DummySceneColor, DummyDepthTarget, ESimpleRenderTargetMode::EUninitializedColorClearDepth, FExclusiveDepthStencil::DepthWrite_StencilWrite);
RHICmdList.DiscardRenderTargets(true, true, 0);
}
}
}
#endif //!PLATFORM_HTML5
}
void FOSVRHMD::StartCustomPresent()
{
#if PLATFORM_WINDOWS
if (!mCustomPresent && IsPCPlatform(GMaxRHIShaderPlatform) && !IsOpenGLPlatform(GMaxRHIShaderPlatform))
{
// currently, FCustomPresent creates its own client context, so no need to
// synchronize with the one from FOSVREntryPoint.
mCustomPresent = new FCurrentCustomPresent(nullptr/*osvrClientContext*/);
}
#endif
}
const UShaderPlatformQualitySettings* UMaterialShaderQualitySettings::GetShaderPlatformQualitySettings(EShaderPlatform ShaderPlatform)
{
#if WITH_EDITORONLY_DATA
// TODO: discuss this, in order to preview render quality settings we override the
// requested platform's settings.
// However we do not know if we are asking for the editor preview window (override able) or for thumbnails, cooking purposes etc.. (Must not override)
// The code below 'works' because desktop platforms do not cook for ES2 preview.
if (IsPCPlatform(ShaderPlatform) && IsES2Platform(ShaderPlatform))
{
// Can check this cant be cooked by iterating through target platforms and shader formats to ensure it's not covered.
if (PreviewPlatformSettings != nullptr)
{
return PreviewPlatformSettings;
}
}
#endif
return GetShaderPlatformQualitySettings(GetPlatformNameFromShaderPlatform(ShaderPlatform));
}
bool FDeferredShadingSceneRenderer::RenderBasePassDynamicData(FViewInfo& View)
{
bool bDirty=0;
if( !View.Family->EngineShowFlags.CompositeEditorPrimitives )
{
const bool bNeedToSwitchVerticalAxis = IsES2Platform(GRHIShaderPlatform) && !IsPCPlatform(GRHIShaderPlatform);
// Draw the base pass for the view's batched mesh elements.
bDirty = DrawViewElements<FBasePassOpaqueDrawingPolicyFactory>(View,FBasePassOpaqueDrawingPolicyFactory::ContextType(false, ESceneRenderTargetsMode::DontSet), SDPG_World, true) || bDirty;
// Draw the view's batched simple elements(lines, sprites, etc).
bDirty = View.BatchedViewElements.Draw(bNeedToSwitchVerticalAxis, View.ViewProjectionMatrix, View.ViewRect.Width(), View.ViewRect.Height(), false) || bDirty;
// Draw foreground objects last
bDirty = DrawViewElements<FBasePassOpaqueDrawingPolicyFactory>(View,FBasePassOpaqueDrawingPolicyFactory::ContextType(false, ESceneRenderTargetsMode::DontSet), SDPG_Foreground, true) || bDirty;
// Draw the view's batched simple elements(lines, sprites, etc).
bDirty = View.TopBatchedViewElements.Draw(bNeedToSwitchVerticalAxis, View.ViewProjectionMatrix, View.ViewRect.Width(), View.ViewRect.Height(), false) || bDirty;
}
return bDirty;
}
void FForwardShadingSceneRenderer::RenderTranslucency(FRHICommandListImmediate& RHICmdList)
{
if (ShouldRenderTranslucency())
{
const bool bGammaSpace = !IsMobileHDR();
const bool bLinearHDR64 = !bGammaSpace && !IsMobileHDR32bpp();
SCOPED_DRAW_EVENT(RHICmdList, Translucency);
for (int32 ViewIndex = 0; ViewIndex < Views.Num(); ViewIndex++)
{
SCOPED_CONDITIONAL_DRAW_EVENTF(RHICmdList, EventView, Views.Num() > 1, TEXT("View%d"), ViewIndex);
const FViewInfo& View = Views[ViewIndex];
#if PLATFORM_HTML5
// Copy the view so emulation of framebuffer fetch works for alpha=depth.
// Possible optimization: this copy shouldn't be needed unless something uses fetch of depth.
if(bLinearHDR64 && GSupportsRenderTargetFormat_PF_FloatRGBA && (GSupportsShaderFramebufferFetch == false) && (!IsPCPlatform(View.GetShaderPlatform())))
{
CopySceneAlpha(RHICmdList, View);
}
#endif
if (!bGammaSpace)
{
GSceneRenderTargets.BeginRenderingTranslucency(RHICmdList, View);
}
else
{
RHICmdList.SetViewport(View.ViewRect.Min.X, View.ViewRect.Min.Y, 0.0f, View.ViewRect.Max.X, View.ViewRect.Max.Y, 1.0f);
}
// Enable depth test, disable depth writes.
RHICmdList.SetDepthStencilState(TStaticDepthStencilState<false,CF_DepthNearOrEqual>::GetRHI());
// Draw only translucent prims that don't read from scene color
View.TranslucentPrimSet.DrawPrimitivesForForwardShading(RHICmdList, View, *this);
// Draw the view's mesh elements with the translucent drawing policy.
DrawViewElements<FTranslucencyForwardShadingDrawingPolicyFactory>(RHICmdList, View, FTranslucencyForwardShadingDrawingPolicyFactory::ContextType(), SDPG_World, false);
// Draw the view's mesh elements with the translucent drawing policy.
DrawViewElements<FTranslucencyForwardShadingDrawingPolicyFactory>(RHICmdList, View, FTranslucencyForwardShadingDrawingPolicyFactory::ContextType(), SDPG_Foreground, false);
}
}
}
void FSteamVRHMD::Startup()
{
// load the OpenVR library
if (!LoadOpenVRModule())
{
return;
}
// grab a pointer to the renderer module for displaying our mirror window
static const FName RendererModuleName("Renderer");
RendererModule = FModuleManager::GetModulePtr<IRendererModule>(RendererModuleName);
vr::HmdError HmdErr = vr::HmdError_None;
//VRSystem = vr::VR_Init(&HmdErr);
VRSystem = (*VRInitFn)(&HmdErr);
// make sure that the version of the HMD we're compiled against is correct
if ((VRSystem != nullptr) && (HmdErr == vr::HmdError_None))
{
//VRSystem = (vr::IVRSystem*)vr::VR_GetGenericInterface(vr::IVRSystem_Version, &HmdErr); //@todo steamvr: verify init error handling
VRSystem = (vr::IVRSystem*)(*VRGetGenericInterfaceFn)(vr::IVRSystem_Version, &HmdErr);
}
// attach to the compositor
if ((VRSystem != nullptr) && (HmdErr == vr::HmdError_None))
{
//VRCompositor = (vr::IVRCompositor*)vr::VR_GetGenericInterface(vr::IVRCompositor_Version, &HmdErr);
VRCompositor = (vr::IVRCompositor*)(*VRGetGenericInterfaceFn)(vr::IVRCompositor_Version, &HmdErr);
if ((VRCompositor != nullptr) && (HmdErr == vr::HmdError_None))
{
// determine our compositor type
vr::Compositor_DeviceType CompositorDeviceType = vr::Compositor_DeviceType_None;
if (IsPCPlatform(GMaxRHIShaderPlatform) && !IsOpenGLPlatform(GMaxRHIShaderPlatform))
{
CompositorDeviceType = vr::Compositor_DeviceType_D3D11;
}
else if (IsOpenGLPlatform(GMaxRHIShaderPlatform))
{
check(0); //@todo steamvr: use old path for mac and linux until support is added
CompositorDeviceType = vr::Compositor_DeviceType_OpenGL;
}
}
}
if ((VRSystem != nullptr) && (HmdErr == vr::HmdError_None))
{
// grab info about the attached display
char Buf[128];
FString DriverId;
vr::TrackedPropertyError Error;
VRSystem->GetStringTrackedDeviceProperty(vr::k_unTrackedDeviceIndex_Hmd, vr::Prop_TrackingSystemName_String, Buf, sizeof(Buf), &Error);
if (Error == vr::TrackedProp_Success)
{
DriverId = FString(UTF8_TO_TCHAR(Buf));
}
VRSystem->GetStringTrackedDeviceProperty(vr::k_unTrackedDeviceIndex_Hmd, vr::Prop_SerialNumber_String, Buf, sizeof(Buf), &Error);
if (Error == vr::TrackedProp_Success)
{
DisplayId = FString(UTF8_TO_TCHAR(Buf));
}
// determine our ideal screen percentage
uint32 RecommendedWidth, RecommendedHeight;
VRSystem->GetRecommendedRenderTargetSize(&RecommendedWidth, &RecommendedHeight);
RecommendedWidth *= 2;
int32 ScreenX, ScreenY;
uint32 ScreenWidth, ScreenHeight;
VRSystem->GetWindowBounds(&ScreenX, &ScreenY, &ScreenWidth, &ScreenHeight);
float WidthPercentage = ((float)RecommendedWidth / (float)ScreenWidth) * 100.0f;
float HeightPercentage = ((float)RecommendedHeight / (float)ScreenHeight) * 100.0f;
float ScreenPercentage = FMath::Max(WidthPercentage, HeightPercentage);
//@todo steamvr: move out of here
static IConsoleVariable* CScrPercVar = IConsoleManager::Get().FindConsoleVariable(TEXT("r.ScreenPercentage"));
if (FMath::RoundToInt(CScrPercVar->GetFloat()) != FMath::RoundToInt(ScreenPercentage))
{
CScrPercVar->Set(ScreenPercentage);
}
// disable vsync
static IConsoleVariable* CVSyncVar = IConsoleManager::Get().FindConsoleVariable(TEXT("r.VSync"));
CVSyncVar->Set(false);
// enforce finishcurrentframe
static IConsoleVariable* CFCFVar = IConsoleManager::Get().FindConsoleVariable(TEXT("r.finishcurrentframe"));
CFCFVar->Set(false);
// Grab the chaperone
vr::HmdError ChaperoneErr = vr::HmdError_None;
//VRChaperone = (vr::IVRChaperone*)vr::VR_GetGenericInterface(vr::IVRChaperone_Version, &ChaperoneErr);
VRChaperone = (vr::IVRChaperone*)(*VRGetGenericInterfaceFn)(vr::IVRChaperone_Version, &ChaperoneErr);
if ((VRChaperone != nullptr) && (ChaperoneErr == vr::HmdError_None))
{
ChaperoneBounds = FChaperoneBounds(VRChaperone);
}
else
{
UE_LOG(LogHMD, Warning, TEXT("Failed to initialize Chaperone. Error: %d"), (int32)ChaperoneErr);
}
// Initialize our controller to device index
for (int32 UnrealControllerIndex = 0; UnrealControllerIndex < MAX_STEAMVR_CONTROLLER_PAIRS; ++UnrealControllerIndex )
{
for( int32 HandIndex = 0; HandIndex < 2; ++HandIndex )
{
UnrealControllerIdAndHandToDeviceIdMap[ UnrealControllerIndex ][ HandIndex ] = INDEX_NONE;
}
}
#if PLATFORM_WINDOWS
if (IsPCPlatform(GMaxRHIShaderPlatform) && !IsOpenGLPlatform(GMaxRHIShaderPlatform))
{
pD3D11Bridge = new D3D11Bridge(this);
}
#endif
LoadFromIni();
UE_LOG(LogHMD, Log, TEXT("SteamVR initialized. Driver: %s Display: %s"), *DriverId, *DisplayId);
}
else
{
UE_LOG(LogHMD, Log, TEXT("SteamVR failed to initialize. Err: %d"), (int32)HmdErr);
VRSystem = nullptr;
}
// share the IVRSystem interface out to the SteamVRController via the module layer
SteamVRPlugin->SetVRSystem(VRSystem);
}
bool FCanvasBatchedElementRenderItem::Render( const FCanvas* Canvas )
{
checkSlow(Data);
bool bDirty=false;
if( Data->BatchedElements.HasPrimsToDraw() )
{
bDirty = true;
// current render target set for the canvas
const FRenderTarget* CanvasRenderTarget = Canvas->GetRenderTarget();
float Gamma = 1.0f / CanvasRenderTarget->GetDisplayGamma();
if ( Data->Texture && Data->Texture->bIgnoreGammaConversions )
{
Gamma = 1.0f;
}
// this allows us to use FCanvas operations from the rendering thread (ie, render subtitles
// on top of a movie that is rendered completely in rendering thread)
if (IsInRenderingThread())
{
const bool bNeedsToSwitchVerticalAxis = IsES2Platform(GRHIShaderPlatform) && !IsPCPlatform(GRHIShaderPlatform);
// draw batched items
Data->BatchedElements.Draw(
bNeedsToSwitchVerticalAxis,
Data->Transform.GetMatrix(),
CanvasRenderTarget->GetSizeXY().X,
CanvasRenderTarget->GetSizeXY().Y,
Canvas->IsHitTesting(),
Gamma
);
if( Canvas->GetAllowedModes() & FCanvas::Allow_DeleteOnRender )
{
// delete data since we're done rendering it
delete Data;
}
}
else
{
// Render the batched elements.
struct FBatchedDrawParameters
{
FRenderData* RenderData;
uint32 bHitTesting : 1;
uint32 ViewportSizeX;
uint32 ViewportSizeY;
float DisplayGamma;
uint32 AllowedCanvasModes;
};
// all the parameters needed for rendering
FBatchedDrawParameters DrawParameters =
{
Data,
Canvas->IsHitTesting(),
(uint32)CanvasRenderTarget->GetSizeXY().X,
(uint32)CanvasRenderTarget->GetSizeXY().Y,
Gamma,
Canvas->GetAllowedModes()
};
ENQUEUE_UNIQUE_RENDER_COMMAND_ONEPARAMETER(
BatchedDrawCommand,
FBatchedDrawParameters,Parameters,DrawParameters,
{
const bool bNeedsToSwitchVerticalAxis = IsES2Platform(GRHIShaderPlatform) && !IsPCPlatform(GRHIShaderPlatform);
// draw batched items
Parameters.RenderData->BatchedElements.Draw(
bNeedsToSwitchVerticalAxis,
Parameters.RenderData->Transform.GetMatrix(),
Parameters.ViewportSizeX,
Parameters.ViewportSizeY,
Parameters.bHitTesting,
Parameters.DisplayGamma
);
if( Parameters.AllowedCanvasModes & FCanvas::Allow_DeleteOnRender )
{
delete Parameters.RenderData;
}
});
}
void FForwardShadingSceneRenderer::RenderForwardShadingBasePass()
{
SCOPED_DRAW_EVENT(BasePass, DEC_SCENE_ITEMS);
SCOPE_CYCLE_COUNTER(STAT_BasePassDrawTime);
EBasePassSort::Type SortMode = GetSortMode();
int32 MaxDraws = GMaxBasePassDraws.GetValueOnRenderThread();
if (MaxDraws <= 0)
{
MaxDraws = MAX_int32;
}
if (SortMode == EBasePassSort::SortStateBuckets)
{
SCOPE_CYCLE_COUNTER(STAT_SortStaticDrawLists);
for (int32 DrawType = 0; DrawType < FScene::EBasePass_MAX; DrawType++)
{
Scene->BasePassForForwardShadingLowQualityLightMapDrawList[DrawType].SortFrontToBack(Views[0].ViewLocation);
Scene->BasePassForForwardShadingDistanceFieldShadowMapLightMapDrawList[DrawType].SortFrontToBack(Views[0].ViewLocation);
Scene->BasePassForForwardShadingDirectionalLightAndSHIndirectDrawList[DrawType].SortFrontToBack(Views[0].ViewLocation);
Scene->BasePassForForwardShadingNoLightMapDrawList[DrawType].SortFrontToBack(Views[0].ViewLocation);
}
}
// Draw the scene's emissive and light-map color.
for (int32 ViewIndex = 0; ViewIndex < Views.Num(); ViewIndex++)
{
SCOPED_CONDITIONAL_DRAW_EVENTF(EventView, Views.Num() > 1, DEC_SCENE_ITEMS, TEXT("View%d"), ViewIndex);
FViewInfo& View = Views[ViewIndex];
// Opaque blending
RHISetBlendState(TStaticBlendStateWriteMask<CW_RGBA>::GetRHI());
// Note, this is a reversed Z depth surface, using CF_GreaterEqual.
RHISetDepthStencilState(TStaticDepthStencilState<true, CF_GreaterEqual>::GetRHI());
RHISetViewport(View.ViewRect.Min.X, View.ViewRect.Min.Y, 0, View.ViewRect.Max.X, View.ViewRect.Max.Y, 1);
// Render the base pass static data
if (SortMode == EBasePassSort::SortPerMesh)
{
SCOPE_CYCLE_COUNTER(STAT_StaticDrawListDrawTime);
MaxDraws -= Scene->BasePassForForwardShadingLowQualityLightMapDrawList[FScene::EBasePass_Default].DrawVisibleFrontToBack(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility,MaxDraws);
MaxDraws -= Scene->BasePassForForwardShadingDistanceFieldShadowMapLightMapDrawList[FScene::EBasePass_Default].DrawVisibleFrontToBack(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility,MaxDraws);
MaxDraws -= Scene->BasePassForForwardShadingDirectionalLightAndSHIndirectDrawList[FScene::EBasePass_Default].DrawVisibleFrontToBack(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility,MaxDraws);
MaxDraws -= Scene->BasePassForForwardShadingNoLightMapDrawList[FScene::EBasePass_Default].DrawVisibleFrontToBack(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility,MaxDraws);
}
else
{
SCOPE_CYCLE_COUNTER(STAT_StaticDrawListDrawTime);
Scene->BasePassForForwardShadingLowQualityLightMapDrawList[FScene::EBasePass_Default].DrawVisible(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility);
Scene->BasePassForForwardShadingDistanceFieldShadowMapLightMapDrawList[FScene::EBasePass_Default].DrawVisible(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility);
Scene->BasePassForForwardShadingDirectionalLightAndSHIndirectDrawList[FScene::EBasePass_Default].DrawVisible(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility);
Scene->BasePassForForwardShadingNoLightMapDrawList[FScene::EBasePass_Default].DrawVisible(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility);
}
{
SCOPE_CYCLE_COUNTER(STAT_DynamicPrimitiveDrawTime);
SCOPED_DRAW_EVENT(Dynamic, DEC_SCENE_ITEMS);
if (View.VisibleDynamicPrimitives.Num() > 0)
{
// Draw the dynamic non-occluded primitives using a base pass drawing policy.
TDynamicPrimitiveDrawer<FBasePassForwardOpaqueDrawingPolicyFactory> Drawer(&View, FBasePassForwardOpaqueDrawingPolicyFactory::ContextType(ESceneRenderTargetsMode::DontSet), true);
for (int32 PrimitiveIndex = 0; PrimitiveIndex < View.VisibleDynamicPrimitives.Num(); PrimitiveIndex++)
{
const FPrimitiveSceneInfo* PrimitiveSceneInfo = View.VisibleDynamicPrimitives[PrimitiveIndex];
int32 PrimitiveId = PrimitiveSceneInfo->GetIndex();
const FPrimitiveViewRelevance& PrimitiveViewRelevance = View.PrimitiveViewRelevanceMap[PrimitiveId];
const bool bVisible = View.PrimitiveVisibilityMap[PrimitiveId];
// Only draw the primitive if it's visible
if (bVisible &&
// only draw opaque and masked primitives if wireframe is disabled
(PrimitiveViewRelevance.bOpaqueRelevance || ViewFamily.EngineShowFlags.Wireframe))
{
FScopeCycleCounter Context(PrimitiveSceneInfo->Proxy->GetStatId());
Drawer.SetPrimitive(PrimitiveSceneInfo->Proxy);
PrimitiveSceneInfo->Proxy->DrawDynamicElements(&Drawer, &View);
}
}
}
const bool bNeedToSwitchVerticalAxis = IsES2Platform(GRHIShaderPlatform) && !IsPCPlatform(GRHIShaderPlatform);
// Draw the base pass for the view's batched mesh elements.
DrawViewElements<FBasePassForwardOpaqueDrawingPolicyFactory>(View,FBasePassForwardOpaqueDrawingPolicyFactory::ContextType(ESceneRenderTargetsMode::DontSet), SDPG_World, true);
// Draw the view's batched simple elements(lines, sprites, etc).
View.BatchedViewElements.Draw(bNeedToSwitchVerticalAxis, View.ViewProjectionMatrix, View.ViewRect.Width(), View.ViewRect.Height(), false);
// Draw foreground objects last
DrawViewElements<FBasePassForwardOpaqueDrawingPolicyFactory>(View,FBasePassForwardOpaqueDrawingPolicyFactory::ContextType(ESceneRenderTargetsMode::DontSet), SDPG_Foreground, true);
// Draw the view's batched simple elements(lines, sprites, etc).
View.TopBatchedViewElements.Draw(bNeedToSwitchVerticalAxis, View.ViewProjectionMatrix, View.ViewRect.Width(), View.ViewRect.Height(), false);
}
// Issue static draw list masked draw calls last, as PVR wants it
if (SortMode == EBasePassSort::SortPerMesh)
{
SCOPE_CYCLE_COUNTER(STAT_StaticDrawListDrawTime);
MaxDraws -= Scene->BasePassForForwardShadingNoLightMapDrawList[FScene::EBasePass_Masked].DrawVisibleFrontToBack(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility,MaxDraws);
MaxDraws -= Scene->BasePassForForwardShadingLowQualityLightMapDrawList[FScene::EBasePass_Masked].DrawVisibleFrontToBack(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility,MaxDraws);
MaxDraws -= Scene->BasePassForForwardShadingDistanceFieldShadowMapLightMapDrawList[FScene::EBasePass_Masked].DrawVisibleFrontToBack(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility,MaxDraws);
MaxDraws -= Scene->BasePassForForwardShadingDirectionalLightAndSHIndirectDrawList[FScene::EBasePass_Masked].DrawVisibleFrontToBack(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility,MaxDraws);
}
else
{
SCOPE_CYCLE_COUNTER(STAT_StaticDrawListDrawTime);
Scene->BasePassForForwardShadingNoLightMapDrawList[FScene::EBasePass_Masked].DrawVisible(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility);
Scene->BasePassForForwardShadingLowQualityLightMapDrawList[FScene::EBasePass_Masked].DrawVisible(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility);
Scene->BasePassForForwardShadingDistanceFieldShadowMapLightMapDrawList[FScene::EBasePass_Masked].DrawVisible(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility);
Scene->BasePassForForwardShadingDirectionalLightAndSHIndirectDrawList[FScene::EBasePass_Masked].DrawVisible(View,View.StaticMeshVisibilityMap,View.StaticMeshBatchVisibility);
}
}
}
FSceneView::FSceneView(const FSceneViewInitOptions& InitOptions)
: Family(InitOptions.ViewFamily)
, State(InitOptions.SceneViewStateInterface)
, ViewActor(InitOptions.ViewActor)
, Drawer(InitOptions.ViewElementDrawer)
, ViewRect(InitOptions.GetConstrainedViewRect())
, UnscaledViewRect(InitOptions.GetConstrainedViewRect())
, UnconstrainedViewRect(InitOptions.GetViewRect())
, MaxShadowCascades(10)
, WorldToMetersScale(InitOptions.WorldToMetersScale)
, ProjectionMatrixUnadjustedForRHI(InitOptions.ProjectionMatrix)
, BackgroundColor(InitOptions.BackgroundColor)
, OverlayColor(InitOptions.OverlayColor)
, ColorScale(InitOptions.ColorScale)
, StereoPass(InitOptions.StereoPass)
, DiffuseOverrideParameter(FVector4(0,0,0,1))
, SpecularOverrideParameter(FVector4(0,0,0,1))
, NormalOverrideParameter(FVector4(0,0,0,1))
, RoughnessOverrideParameter(FVector2D(0,1))
, HiddenPrimitives(InitOptions.HiddenPrimitives)
, LODDistanceFactor(InitOptions.LODDistanceFactor)
, bCameraCut(InitOptions.bInCameraCut)
, bOriginOffsetThisFrame(InitOptions.bOriginOffsetThisFrame)
, CursorPos(InitOptions.CursorPos)
, bIsGameView(false)
, bForceShowMaterials(false)
, bIsViewInfo(false)
, bIsSceneCapture(false)
, bIsReflectionCapture(false)
, bIsLocked(false)
, bStaticSceneOnly(false)
#if WITH_EDITOR
, OverrideLODViewOrigin(InitOptions.OverrideLODViewOrigin)
, bAllowTranslucentPrimitivesInHitProxy( true )
, bHasSelectedComponents( false )
#endif
, FeatureLevel(InitOptions.ViewFamily ? InitOptions.ViewFamily->GetFeatureLevel() : GMaxRHIFeatureLevel)
{
check(UnscaledViewRect.Min.X >= 0);
check(UnscaledViewRect.Min.Y >= 0);
check(UnscaledViewRect.Width() > 0);
check(UnscaledViewRect.Height() > 0);
ViewMatrices.ViewMatrix = InitOptions.ViewMatrix;
// Adjust the projection matrix for the current RHI.
ViewMatrices.ProjMatrix = AdjustProjectionMatrixForRHI(ProjectionMatrixUnadjustedForRHI);
// Compute the view projection matrix and its inverse.
ViewProjectionMatrix = ViewMatrices.GetViewProjMatrix();
// For precision reasons the view matrix inverse is calculated independently.
InvViewMatrix = ViewMatrices.ViewMatrix.Inverse();
InvViewProjectionMatrix = ViewMatrices.GetInvProjMatrix() * InvViewMatrix;
bool ApplyPreViewTranslation = true;
// Calculate the view origin from the view/projection matrices.
if(IsPerspectiveProjection())
{
ViewMatrices.ViewOrigin = InvViewMatrix.GetOrigin();
}
#if WITH_EDITOR
else if (InitOptions.bUseFauxOrthoViewPos)
{
float DistanceToViewOrigin = WORLD_MAX;
ViewMatrices.ViewOrigin = FVector4(InvViewMatrix.TransformVector(FVector(0,0,-1)).GetSafeNormal()*DistanceToViewOrigin,1) + InvViewMatrix.GetOrigin();
}
#endif
else
{
ViewMatrices.ViewOrigin = FVector4(InvViewMatrix.TransformVector(FVector(0,0,-1)).GetSafeNormal(),0);
// to avoid issues with view dependent effect (e.g. Frensel)
ApplyPreViewTranslation = false;
}
// Translate world-space so its origin is at ViewOrigin for improved precision.
// Note that this isn't exactly right for orthogonal projections (See the above special case), but we still use ViewOrigin
// in that case so the same value may be used in shaders for both the world-space translation and the camera's world position.
if(ApplyPreViewTranslation)
{
ViewMatrices.PreViewTranslation = -FVector(ViewMatrices.ViewOrigin);
#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
{
// console variable override
static const auto CVar = IConsoleManager::Get().FindTConsoleVariableDataInt(TEXT("r.PreViewTranslation"));
int32 Value = CVar->GetValueOnGameThread();
static FVector PreViewTranslationBackup;
if(Value)
{
PreViewTranslationBackup = ViewMatrices.PreViewTranslation;
}
else
{
ViewMatrices.PreViewTranslation = PreViewTranslationBackup;
}
}
#endif // !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
}
/** The view transform, starting from world-space points translated by -ViewOrigin. */
FMatrix TranslatedViewMatrix = FTranslationMatrix(-ViewMatrices.PreViewTranslation) * ViewMatrices.ViewMatrix;
// Compute a transform from view origin centered world-space to clip space.
ViewMatrices.TranslatedViewProjectionMatrix = TranslatedViewMatrix * ViewMatrices.ProjMatrix;
ViewMatrices.InvTranslatedViewProjectionMatrix = ViewMatrices.TranslatedViewProjectionMatrix.Inverse();
// Compute screen scale factors.
// Stereo renders at half horizontal resolution, but compute shadow resolution based on full resolution.
const bool bStereo = StereoPass != eSSP_FULL;
const float ScreenXScale = bStereo ? 2.0f : 1.0f;
ViewMatrices.ProjectionScale.X = ScreenXScale * FMath::Abs(ViewMatrices.ProjMatrix.M[0][0]);
ViewMatrices.ProjectionScale.Y = FMath::Abs(ViewMatrices.ProjMatrix.M[1][1]);
ViewMatrices.ScreenScale = FMath::Max(
ViewRect.Size().X * 0.5f * ViewMatrices.ProjectionScale.X,
ViewRect.Size().Y * 0.5f * ViewMatrices.ProjectionScale.Y
);
ShadowViewMatrices = ViewMatrices;
#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
{
// console variable override
int32 Value = CVarShadowFreezeCamera.GetValueOnAnyThread();
static FViewMatrices Backup = ShadowViewMatrices;
if(Value)
{
ShadowViewMatrices = Backup;
}
else
{
Backup = ShadowViewMatrices;
}
}
#endif // !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
if (InitOptions.OverrideFarClippingPlaneDistance > 0.0f)
{
const FPlane FarPlane(ViewMatrices.ViewOrigin + GetViewDirection() * InitOptions.OverrideFarClippingPlaneDistance, GetViewDirection());
// Derive the view frustum from the view projection matrix, overriding the far plane
GetViewFrustumBounds(ViewFrustum,ViewProjectionMatrix,FarPlane,true,false);
}
else
{
// Derive the view frustum from the view projection matrix.
GetViewFrustumBounds(ViewFrustum,ViewProjectionMatrix,false);
}
// Derive the view's near clipping distance and plane.
// The GetFrustumFarPlane() is the near plane because of reverse Z projection.
bHasNearClippingPlane = ViewProjectionMatrix.GetFrustumFarPlane(NearClippingPlane);
if(ViewMatrices.ProjMatrix.M[2][3] > DELTA)
{
// Infinite projection with reversed Z.
NearClippingDistance = ViewMatrices.ProjMatrix.M[3][2];
}
else
{
// Ortho projection with reversed Z.
NearClippingDistance = (1.0f - ViewMatrices.ProjMatrix.M[3][2]) / ViewMatrices.ProjMatrix.M[2][2];
}
// Determine whether the view should reverse the cull mode due to a negative determinant. Only do this for a valid scene
bReverseCulling = (Family && Family->Scene) ? FMath::IsNegativeFloat(ViewMatrices.ViewMatrix.Determinant()) : false;
// OpenGL Gamma space output in GLSL flips Y when rendering directly to the back buffer (so not needed on PC, as we never render directly into the back buffer)
auto ShaderPlatform = GShaderPlatformForFeatureLevel[FeatureLevel];
static bool bPlatformRequiresReverseCulling = (IsOpenGLPlatform(ShaderPlatform) && !IsPCPlatform(ShaderPlatform));
static auto* MobileHDRCvar = IConsoleManager::Get().FindTConsoleVariableDataInt(TEXT("r.MobileHDR"));
check(MobileHDRCvar);
bReverseCulling = (bPlatformRequiresReverseCulling && MobileHDRCvar->GetValueOnAnyThread() == 0) ? !bReverseCulling : bReverseCulling;
// Setup transformation constants to be used by the graphics hardware to transform device normalized depth samples
// into world oriented z.
InvDeviceZToWorldZTransform = CreateInvDeviceZToWorldZTransform(ProjectionMatrixUnadjustedForRHI);
static TConsoleVariableData<int32>* SortPolicyCvar = IConsoleManager::Get().FindTConsoleVariableDataInt(TEXT("r.TranslucentSortPolicy"));
TranslucentSortPolicy = static_cast<ETranslucentSortPolicy::Type>(SortPolicyCvar->GetValueOnAnyThread());
TranslucentSortAxis = GetDefault<URendererSettings>()->TranslucentSortAxis;
// As the world is only accessable from the game thread, bIsGameView should be explicitly
// set on any other thread.
if(IsInGameThread())
{
bIsGameView = (Family && Family->Scene && Family->Scene->GetWorld() ) ? Family->Scene->GetWorld()->IsGameWorld() : false;
}
#if WITH_EDITOR
EditorViewBitflag = InitOptions.EditorViewBitflag;
SelectionOutlineColor = GEngine->GetSelectionOutlineColor();
#endif
}
