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diff --git a/public/engine/view_sharedv1.h b/public/engine/view_sharedv1.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef VIEW_SHAREDV1_H
+#define VIEW_SHAREDV1_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+//-----------------------------------------------------------------------------
+// Purpose: Renderer setup data.  
+//-----------------------------------------------------------------------------
+class CViewSetupV1
+{
+public:
+	CViewSetupV1()
+	{
+		m_bForceAspectRatio1To1 = false;
+		m_bRenderToSubrectOfLargerScreen = false;
+		bForceClearWholeRenderTarget = false;
+		m_bUseRenderTargetAspectRatio = false;
+	}
+
+// shared by 2D & 3D views
+
+	// User specified context
+	int			context;			
+
+	// left side of view window
+	int			x;					
+	// top side of view window
+	int			y;					
+	// width of view window
+	int			width;				
+	// height of view window
+	int			height;				
+
+	// clear the color buffer before rendering this view?
+	bool		clearColor;			
+	// clear the Depth buffer before rendering this view?
+	bool		clearDepth;			
+	// NOTE: This is for a workaround on ATI with building cubemaps.  Clearing just the viewport doesn't seem to work properly.
+	bool		bForceClearWholeRenderTarget;
+
+// the rest are only used by 3D views
+
+	// Orthographic projection?
+	bool		m_bOrtho;			
+	// View-space rectangle for ortho projection.
+	float		m_OrthoLeft;		
+	float		m_OrthoTop;
+	float		m_OrthoRight;
+	float		m_OrthoBottom;
+
+	// horizontal FOV in degrees
+	float		fov;				
+	// horizontal FOV in degrees for in-view model
+	float		fovViewmodel;		
+
+	// 3D origin of camera
+	Vector		origin;					
+	// Origin gets reflected on the water surface, but things like
+	// displacement LOD need to be calculated from the viewer's 
+	// real position.		
+	Vector		m_vUnreflectedOrigin;																			
+	
+	// heading of camera (pitch, yaw, roll)
+	QAngle		angles;				
+	// local Z coordinate of near plane of camera
+	float		zNear;			
+		// local Z coordinate of far plane of camera
+	float		zFar;			
+
+	// local Z coordinate of near plane of camera ( when rendering view model )
+	float		zNearViewmodel;		
+	// local Z coordinate of far plane of camera ( when rendering view model )
+	float		zFarViewmodel;		
+
+	bool		m_bForceAspectRatio1To1;
+
+	// set to true if this is to draw into a subrect of the larger screen
+	// this really is a hack, but no more than the rest of the way this class is used
+	bool		m_bRenderToSubrectOfLargerScreen;
+
+	// Use this for situations like water where you want to render the aspect ratio of the
+	// back buffer into a square (or otherwise) render target.
+	bool		m_bUseRenderTargetAspectRatio;
+};
+
+#endif // VIEW_SHAREDV1_H