SceneRenderingUtils.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
//#include "SceneManagement.h"
#include "SceneRendering.h"
 
template <typename PassParametersType>
inline void AddSimpleElementCollectorPass(const FSimpleElementCollector& SimpleElementCollector, FRDGBuilder& GraphBuilder, PassParametersType* PassParameters, const FViewInfo& View, const FMeshPassProcessorRenderState& DrawRenderState)
{
    GraphBuilder.AddPass(
        RDG_EVENT_NAME("EditorPrimitives"),
        PassParameters,
        ERDGPassFlags::Raster,
        [&View, &SimpleElementCollector, DrawRenderState](FRHICommandListImmediate& RHICmdList)
        {
            FSceneRenderer::SetStereoViewport(RHICmdList, View, 1.0f);
 
            SimpleElementCollector.DrawBatchedElements(RHICmdList, DrawRenderState, View, EBlendModeFilter::OpaqueAndMasked, SDPG_World, View.GetStereoPassInstanceFactor());
            SimpleElementCollector.DrawBatchedElements(RHICmdList, DrawRenderState, View, EBlendModeFilter::OpaqueAndMasked, SDPG_Foreground, View.GetStereoPassInstanceFactor());
        }
    );
}
 
template <typename PassParametersType>
inline void AddSimpleElementCollectorPass(const FSimpleElementCollector& SimpleElementCollector, FRDGBuilder& GraphBuilder, PassParametersType* PassParameters, const FViewInfo& View, const FMeshPassProcessorRenderState& DrawRenderState, ESceneDepthPriorityGroup SceneDepthPriorityGroup)
{
    GraphBuilder.AddPass(
        RDG_EVENT_NAME("EditorPrimitives"),
        PassParameters,
        ERDGPassFlags::Raster,
        [&View, &SimpleElementCollector, DrawRenderState, SceneDepthPriorityGroup](FRHICommandListImmediate& RHICmdList)
        {
            FSceneRenderer::SetStereoViewport(RHICmdList, View, 1.0f);
 
            SimpleElementCollector.DrawBatchedElements(RHICmdList, DrawRenderState, View, EBlendModeFilter::OpaqueAndMasked, SceneDepthPriorityGroup, View.GetStereoPassInstanceFactor());
        }
    );
}
 
template <typename PassParametersType>
inline void AddBatchedElementsPass(const FBatchedElements& BatchedElements, FRDGBuilder& GraphBuilder, PassParametersType* PassParameters, const FViewInfo& View, const FMeshPassProcessorRenderState& DrawRenderState)
{
    GraphBuilder.AddPass(
        RDG_EVENT_NAME("BatchedElements"),
        PassParameters,
        ERDGPassFlags::Raster,
        [&View, &BatchedElements, DrawRenderState](FRHICommandListImmediate& RHICmdList)
        {
            RHICmdList.SetViewport(View.ViewRect.Min.X, View.ViewRect.Min.Y, 0.0f, View.ViewRect.Max.X, View.ViewRect.Max.Y, 1.0f);
 
            // Draw the view's batched simple elements(lines, sprites, etc).
            BatchedElements.Draw(RHICmdList, DrawRenderState, View.FeatureLevel, View, false);
        }
    );
}