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diff --git a/public/tier2/renderutils.h b/public/tier2/renderutils.h
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+++ b/public/tier2/renderutils.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: A set of utilities to render standard shapes
+//
+//===========================================================================//
+
+#ifndef RENDERUTILS_H
+#define RENDERUTILS_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "tier2/tier2.h"
+#include "Color.h"
+
+//-----------------------------------------------------------------------------
+// Forward declarations
+//-----------------------------------------------------------------------------
+class Vector;
+class QAngle;
+class IMaterial;
+struct matrix3x4_t;
+
+
+// Renders a wireframe sphere
+void RenderWireframeSphere( const Vector &vCenter, float flRadius, int nTheta, int nPhi, Color c, bool bZBuffer );
+
+// Renders a sphere
+void RenderSphere( const Vector &vCenter, float flRadius, int nTheta, int nPhi, Color c, bool bZBuffer );
+void RenderSphere( const Vector &vCenter, float flRadius, int nTheta, int nPhi, Color c, IMaterial *pMaterial );
+
+// Renders a wireframe box relative to an origin 
+void RenderWireframeBox( const Vector &vOrigin, const QAngle& angles, const Vector &vMins, const Vector &vMaxs, Color c, bool bZBuffer );
+
+// Renders a swept wireframe box
+void RenderWireframeSweptBox( const Vector &vStart, const Vector &vEnd, const QAngle &angles, const Vector &vMins, const Vector &vMaxs, Color c, bool bZBuffer );
+
+// Renders a solid box 
+void RenderBox( const Vector& origin, const QAngle& angles, const Vector& mins, const Vector& maxs, Color c, bool bZBuffer, bool bInsideOut = false );
+void RenderBox( const Vector& origin, const QAngle& angles, const Vector& mins, const Vector& maxs, Color c, IMaterial *pMaterial, bool bInsideOut = false );
+
+// Renders axes, red->x, green->y, blue->z (axis aligned)
+void RenderAxes( const Vector &vOrigin, float flScale, bool bZBuffer );
+void RenderAxes( const matrix3x4_t &transform, float flScale, bool bZBuffer );
+
+// Render a line
+void RenderLine( const Vector& v1, const Vector& v2, Color c, bool bZBuffer );
+
+// Draws a triangle
+void RenderTriangle( const Vector& p1, const Vector& p2, const Vector& p3, Color c, bool bZBuffer );
+void RenderTriangle( const Vector& p1, const Vector& p2, const Vector& p3, Color c, IMaterial *pMaterial );
+
+// Draws a axis-aligned quad
+void RenderQuad( IMaterial *pMaterial, float x, float y, float w, float h, float z, float s0, float t0, float s1, float t1, const Color& clr );
+
+// Renders a screen space quad
+void DrawScreenSpaceRectangle( IMaterial *pMaterial, 
+	int nDestX, int nDestY, int nWidth, int nHeight,	// Rect to draw into in screen space
+	float flSrcTextureX0, float flSrcTextureY0,			// which texel you want to appear at destx/y
+	float flSrcTextureX1, float flSrcTextureY1,			// which texel you want to appear at destx+width-1, desty+height-1
+	int nSrcTextureWidth, int nSrcTextureHeight,		// needed for fixup
+	void *pClientRenderable = NULL,						// Used to pass to the bind proxies
+	int nXDice = 1,
+	int nYDice = 1,
+	float fDepth = 0.0 );								// what Z value to put in the verts
+
+#endif // RENDERUTILS_H
+