HUD渲染

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创建贴图

UTexture2D* CrosshairTex = NULL;

static ConstructorHelpers::FObjectFinder<UTexture2D> CrosshiarTexObj(TEXT("/Game/FirstPerson/Textures/FirstPersonCrosshair"));
CrosshairTex = CrosshiarTexObj.Object;

坐标

const FVector2D Center(Canvas->ClipX * 0.5f, Canvas->ClipY * 0.5f);

const FVector2D CrosshairDrawPosition( (Center.X - (CrosshairTex->GetSurfaceWidth() * 0.5)),
(Center.Y - (CrosshairTex->GetSurfaceHeight() * 0.5f)) );

绘制
FCanvasTileItem TileItem( CrosshairDrawPosition, CrosshairTex->Resource, FLinearColor::White);
TileItem.BlendMode = SE_BLEND_Translucent;
Canvas->DrawItem( TileItem );

HUD渲染

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原文地址：http://www.cnblogs.com/bodboy/p/4996024.html