PrimitiveDrawInterface.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Math/MathFwd.h"
 
class FDynamicPrimitiveResource;
class FSceneView;
class FTexture;
class HHitProxy;
struct FMeshBatch;
 
 
class FPrimitiveDrawInterface
{
public:
 
    const FSceneView* View;
 
    FPrimitiveDrawInterface(const FSceneView* InView):
        View(InView)
    {}
 
    virtual ~FPrimitiveDrawInterface()
    {
    }
 
    virtual bool IsHitTesting() = 0;
    virtual void SetHitProxy(HHitProxy* HitProxy) = 0;
 
    virtual void RegisterDynamicResource(FDynamicPrimitiveResource* DynamicResource) = 0;
 
    virtual void AddReserveLines(uint8 DepthPriorityGroup, int32 NumLines, bool bDepthBiased = false, bool bThickLines = false) = 0;
 
    virtual void DrawSprite(
        const FVector& Position,
        float SizeX,
        float SizeY,
        const FTexture* Sprite,
        const FLinearColor& Color,
        uint8 DepthPriorityGroup,
        float U,
        float UL,
        float V,
        float VL,
        uint8 BlendMode = 1, /*SE_BLEND_Masked*/
        float OpacityMaskRefVal = .5f
        ) = 0;
 
    // Draw an opaque line. The alpha component of Color is ignored.
    virtual void DrawLine(
        const FVector& Start,
        const FVector& End,
        const FLinearColor& Color,
        uint8 DepthPriorityGroup,
        float Thickness = 0.0f,
        float DepthBias = 0.0f,
        bool bScreenSpace = false
        ) = 0;
 
    // Draw a translucent line. The alpha component of Color determines the transparency.
    virtual void DrawTranslucentLine(
        const FVector& Start,
        const FVector& End,
        const FLinearColor& Color,
        uint8 DepthPriorityGroup,
        float Thickness = 0.0f,
        float DepthBias = 0.0f,
        bool bScreenSpace = false
    ) = 0;
 
    virtual void DrawPoint(
        const FVector& Position,
        const FLinearColor& Color,
        float PointSize,
        uint8 DepthPriorityGroup
        ) = 0;
 
    virtual int32 DrawMesh(const FMeshBatch& Mesh) = 0;
};