ScreenPass.cpp File Reference

#include "ScreenPass.h"
#include "DataDrivenShaderPlatformInfo.h"
#include "EngineGlobals.h"
#include "PostProcess/SceneFilterRendering.h"
#include "RendererModule.h"
#include "RenderGraphUtils.h"
#include "ScenePrivate.h"
#include "SystemTextures.h"
#include "UnrealClient.h"

Classes
class	FDownsampleDepthPS

Functions
	IMPLEMENT_GLOBAL_SHADER (FScreenPassVS, "/Engine/Private/ScreenPass.usf", "ScreenPassVS", SF_Vertex)
FRHITexture *	GetMiniFontTexture ()
FRDGTextureRef	TryCreateViewFamilyTexture (FRDGBuilder &GraphBuilder, const FSceneViewFamily &ViewFamily)
FRDGTextureRef	TryCreateViewFamilyDepthTexture (FRDGBuilder &GraphBuilder, const FSceneViewFamily &ViewFamily)
FScreenPassTextureViewportParameters	GetScreenPassTextureViewportParameters (const FScreenPassTextureViewport &InViewport)
void	SetScreenPassPipelineState (FRHICommandList &RHICmdList, const FScreenPassPipelineState &ScreenPassDraw)
void	DrawScreenPass_PostSetup (FRHICommandList &RHICmdList, const FScreenPassViewInfo &ViewInfo, const FScreenPassTextureViewport &OutputViewport, const FScreenPassTextureViewport &InputViewport, const FScreenPassPipelineState &PipelineState, EScreenPassDrawFlags Flags)
void	AddDrawTexturePass (FRDGBuilder &GraphBuilder, FScreenPassViewInfo ViewInfo, FRDGTextureRef InputTexture, FRDGTextureRef OutputTexture, FIntPoint InputPosition, FIntPoint InputSize, FIntPoint OutputPosition, FIntPoint OutputSize)
void	AddDrawTexturePass (FRDGBuilder &GraphBuilder, FScreenPassViewInfo ViewInfo, FRDGTextureRef InputTexture, FRDGTextureRef OutputTexture, FIntPoint InputPosition, FIntPoint OutputPosition, FIntPoint Size)
void	AddDrawTexturePass (FRDGBuilder &GraphBuilder, FScreenPassViewInfo ViewInfo, FScreenPassTexture Input, FScreenPassRenderTarget Output, uint32 RTMultiViewCount)
void	AddDrawTexturePass (FRDGBuilder &GraphBuilder, FScreenPassViewInfo ViewInfo, FScreenPassTextureSlice Input, FScreenPassRenderTarget Output)
	IMPLEMENT_GLOBAL_SHADER (FDownsampleDepthPS, "/Engine/Private/DownsampleDepthPixelShader.usf", "Main", SF_Pixel)
void	AddDownsampleDepthPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, FScreenPassTexture Input, FScreenPassRenderTarget Output, EDownsampleDepthFilter DownsampleDepthFilter)

Function Documentation

AddDownsampleDepthPass()

void AddDownsampleDepthPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		FScreenPassTexture	Input,
		FScreenPassRenderTarget	Output,
		EDownsampleDepthFilter	DownsampleDepthFilter
	)

AddDrawTexturePass() [1/4]

void AddDrawTexturePass	(	FRDGBuilder &	GraphBuilder,
		FScreenPassViewInfo	ViewInfo,
		FRDGTextureRef	InputTexture,
		FRDGTextureRef	OutputTexture,
		FIntPoint	InputPosition,
		FIntPoint	InputSize,
		FIntPoint	OutputPosition,
		FIntPoint	OutputSize
	)

AddDrawTexturePass() [2/4]

void AddDrawTexturePass	(	FRDGBuilder &	GraphBuilder,
		FScreenPassViewInfo	ViewInfo,
		FRDGTextureRef	InputTexture,
		FRDGTextureRef	OutputTexture,
		FIntPoint	InputPosition = FIntPoint::ZeroValue,
		FIntPoint	OutputPosition = FIntPoint::ZeroValue,
		FIntPoint	Size = FIntPoint::ZeroValue
	)

Helper function which copies a region of an input texture to a region of the output texture, with support for format conversion. If formats match, the method falls back to a simple DMA (CopyTexture); otherwise, it rasterizes using a pixel shader. Use this method if the two textures may have different formats.

AddDrawTexturePass() [3/4]

void AddDrawTexturePass	(	FRDGBuilder &	GraphBuilder,
		FScreenPassViewInfo	ViewInfo,
		FScreenPassTexture	Input,
		FScreenPassRenderTarget	Output,
		uint32	RTMultiViewCount
	)

AddDrawTexturePass() [4/4]

void AddDrawTexturePass	(	FRDGBuilder &	GraphBuilder,
		FScreenPassViewInfo	ViewInfo,
		FScreenPassTextureSlice	Input,
		FScreenPassRenderTarget	Output
	)

Variation of above that accepts a slice, which contains a texture SRV instead of a texture

DrawScreenPass_PostSetup()

void DrawScreenPass_PostSetup	(	FRHICommandList &	RHICmdList,
		const FScreenPassViewInfo &	ViewInfo,
		const FScreenPassTextureViewport &	OutputViewport,
		const FScreenPassTextureViewport &	InputViewport,
		const FScreenPassPipelineState &	PipelineState,
		EScreenPassDrawFlags	Flags
	)

GetMiniFontTexture()

FRHITexture * GetMiniFontTexture

(

)

GetScreenPassTextureViewportParameters()

FScreenPassTextureViewportParameters GetScreenPassTextureViewportParameters

(

const FScreenPassTextureViewport &

InViewport

)

IMPLEMENT_GLOBAL_SHADER() [1/2]

IMPLEMENT_GLOBAL_SHADER	(	FDownsampleDepthPS	,
		"/Engine/Private/DownsampleDepthPixelShader.usf"	,
		"Main"	,
		SF_Pixel
	)

IMPLEMENT_GLOBAL_SHADER() [2/2]

IMPLEMENT_GLOBAL_SHADER	(	FScreenPassVS	,
		"/Engine/Private/ScreenPass.usf"	,
		"ScreenPassVS"	,
		SF_Vertex
	)

SetScreenPassPipelineState()

void SetScreenPassPipelineState	(	FRHICommandList &	RHICmdList,
		const FScreenPassPipelineState &	ScreenPassDraw
	)

TryCreateViewFamilyDepthTexture()

FRDGTextureRef TryCreateViewFamilyDepthTexture	(	FRDGBuilder &	GraphBuilder,
		const FSceneViewFamily &	ViewFamily
	)

TryCreateViewFamilyTexture()

FRDGTextureRef TryCreateViewFamilyTexture	(	FRDGBuilder &	GraphBuilder,
		const FSceneViewFamily &	ViewFamily
	)