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diff --git a/app/legion/rendermanager.cpp b/app/legion/rendermanager.cpp
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+++ b/app/legion/rendermanager.cpp
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: The main manager of the rendering 
+//
+// $Revision: $
+// $NoKeywords: $
+//===========================================================================//
+
+#include "rendermanager.h"
+#include "legion.h"
+#include "uimanager.h"
+#include "worldmanager.h"
+#include "materialsystem/imaterialsystem.h"
+#include "tier2/tier2.h"
+
+
+//-----------------------------------------------------------------------------
+// Camera property
+//-----------------------------------------------------------------------------
+DEFINE_FIXEDSIZE_ALLOCATOR( CCameraProperty, 1, CMemoryPool::GROW_SLOW );
+
+
+CCameraProperty::CCameraProperty()
+{
+	m_Origin.Init();
+	m_Angles.Init();
+	m_Velocity.Init();
+	m_AngVelocity.Init();
+}
+
+void CCameraProperty::GetForward( Vector *pForward )
+{
+	AngleVectors( m_Angles, pForward );
+}
+
+
+//-----------------------------------------------------------------------------
+// Singleton accessor
+//-----------------------------------------------------------------------------
+static CRenderManager s_RenderManager;
+extern CRenderManager *g_pRenderManager = &s_RenderManager;
+
+	
+//-----------------------------------------------------------------------------
+// Game initialization
+//-----------------------------------------------------------------------------
+bool CRenderManager::Init()
+{
+	m_bRenderWorldFullscreen = true;
+	return true;
+}
+
+void CRenderManager::Shutdown()
+{
+}
+
+	
+//-----------------------------------------------------------------------------
+// Level initialization
+//-----------------------------------------------------------------------------
+LevelRetVal_t CRenderManager::LevelInit( bool bFirstCall )
+{
+	return FINISHED;
+}
+
+LevelRetVal_t CRenderManager::LevelShutdown( bool bFirstCall )
+{
+	return FINISHED;
+}
+
+	
+//-----------------------------------------------------------------------------
+// Property allocation
+//-----------------------------------------------------------------------------
+CCameraProperty *CRenderManager::CreateCameraProperty()
+{
+	return new CCameraProperty;
+}
+
+void CRenderManager::DestroyCameraProperty( CCameraProperty *pProperty )
+{
+	delete pProperty;
+}
+
+
+//-----------------------------------------------------------------------------
+// Sets the rectangle to draw into
+//-----------------------------------------------------------------------------
+void CRenderManager::RenderWorldFullscreen()
+{
+	m_bRenderWorldFullscreen = true;
+}
+
+void CRenderManager::RenderWorldInRect( int x, int y, int nWidth, int nHeight )
+{
+	m_bRenderWorldFullscreen = false;
+	m_nRenderX = x;
+	m_nRenderY = y;
+	m_nRenderWidth = nWidth;
+	m_nRenderHeight = nHeight;
+}
+
+	
+//-----------------------------------------------------------------------------
+// Done completely client-side, want total smoothness, so simulate at render interval
+//-----------------------------------------------------------------------------
+void CRenderManager::UpdateLocalPlayerCamera()
+{
+	float dt = IGameManager::DeltaTime();
+	CCameraProperty *pCamera = g_pWorldManager->GetLocalPlayer()->m_pCameraProperty;
+	VectorMA( pCamera->m_Origin, dt, pCamera->m_Velocity, pCamera->m_Origin );
+	VectorMA( pCamera->m_Angles, dt, pCamera->m_AngVelocity, pCamera->m_Angles );
+}
+
+
+//-----------------------------------------------------------------------------
+// Per-frame update
+//-----------------------------------------------------------------------------
+void CRenderManager::Update( )
+{
+	CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
+	if ( GetLevelState() == NOT_IN_LEVEL )
+	{
+		g_pMaterialSystem->BeginFrame( 0 );
+		pRenderContext->ClearColor4ub( 76, 88, 68, 255 ); 
+		pRenderContext->ClearBuffers( true, true );
+		g_pUIManager->DrawUI();
+		g_pMaterialSystem->EndFrame();
+		g_pMaterialSystem->SwapBuffers();
+		return;
+	}
+
+	UpdateLocalPlayerCamera();
+
+	g_pMaterialSystem->BeginFrame( 0 );
+	pRenderContext->ClearColor4ub( 0, 0, 0, 255 ); 
+	pRenderContext->ClearBuffers( true, true );
+	RenderWorld();
+	g_pUIManager->DrawUI();
+	g_pMaterialSystem->EndFrame();
+	g_pMaterialSystem->SwapBuffers();
+}
+
+
+//-----------------------------------------------------------------------------
+// Sets up the camera
+//-----------------------------------------------------------------------------
+void CRenderManager::SetupCameraRenderState( )
+{
+	CCameraProperty *pCamera = g_pWorldManager->GetLocalPlayer()->m_pCameraProperty;
+
+	matrix3x4_t cameraToWorld;
+	AngleMatrix( pCamera->m_Angles, pCamera->m_Origin, cameraToWorld );
+
+	matrix3x4_t matRotate;
+	matrix3x4_t matRotateZ;
+	MatrixBuildRotationAboutAxis( Vector(0,0,1), -90, matRotateZ );
+	MatrixMultiply( cameraToWorld, matRotateZ, matRotate );
+
+	matrix3x4_t matRotateX;
+	MatrixBuildRotationAboutAxis( Vector(1,0,0), 90, matRotateX );
+	MatrixMultiply( matRotate, matRotateX, matRotate );
+
+	matrix3x4_t view;
+	MatrixInvert( matRotate, view );
+
+	CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
+	pRenderContext->MatrixMode( MATERIAL_VIEW );
+	pRenderContext->LoadMatrix( view );
+}
+
+	
+//-----------------------------------------------------------------------------
+// Set up a projection matrix for a 90 degree fov
+//-----------------------------------------------------------------------------
+
+// FIXME: Better control over Z range
+#define ZNEAR 0.1f
+#define ZFAR 10000.0f
+
+void CRenderManager::SetupProjectionMatrix( int nWidth, int nHeight, float flFOV )
+{
+	VMatrix proj;
+	float flZNear = ZNEAR;
+	float flZFar = ZFAR;
+	float flApsectRatio = (nHeight != 0.0f) ? (float)nWidth / (float)nHeight : 100.0f;
+
+	float halfWidth = tan( flFOV * M_PI / 360.0 );
+	float halfHeight = halfWidth / flApsectRatio;
+
+	memset( proj.Base(), 0, sizeof( proj ) );
+	proj[0][0]  = 1.0f / halfWidth;
+	proj[1][1]  = 1.0f / halfHeight;
+	proj[2][2] = flZFar / ( flZNear - flZFar );
+	proj[3][2] = -1.0f;
+	proj[2][3] = flZNear * flZFar / ( flZNear - flZFar );
+
+	CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
+	pRenderContext->MatrixMode( MATERIAL_PROJECTION );
+	pRenderContext->LoadMatrix( proj );
+}
+
+
+//-----------------------------------------------------------------------------
+// Set up a orthographic projection matrix
+//-----------------------------------------------------------------------------
+void CRenderManager::SetupOrthoMatrix( int nWidth, int nHeight )
+{
+	CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
+	pRenderContext->MatrixMode( MATERIAL_PROJECTION );
+	pRenderContext->LoadIdentity();
+	pRenderContext->Ortho( 0, 0, nWidth, nHeight, -1.0f, 1.0f );
+}
+
+
+//-----------------------------------------------------------------------------
+// Renders the world
+//-----------------------------------------------------------------------------
+void CRenderManager::RenderWorld()
+{
+	CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
+	pRenderContext->MatrixMode( MATERIAL_PROJECTION );
+	pRenderContext->PushMatrix();
+
+	pRenderContext->MatrixMode( MATERIAL_VIEW );
+	pRenderContext->PushMatrix();
+
+	pRenderContext->MatrixMode( MATERIAL_MODEL );
+	pRenderContext->PushMatrix();
+	pRenderContext->LoadIdentity();
+
+	if ( m_bRenderWorldFullscreen )
+	{
+		m_nRenderX = m_nRenderY = 0;
+		pRenderContext->GetRenderTargetDimensions( m_nRenderWidth, m_nRenderHeight );
+	}
+
+	pRenderContext->DepthRange( 0, 1 );
+	pRenderContext->Viewport( m_nRenderX, m_nRenderY, m_nRenderWidth, m_nRenderHeight );
+
+	SetupProjectionMatrix( m_nRenderWidth, m_nRenderHeight, 90 );
+
+	SetupCameraRenderState();
+
+	g_pWorldManager->DrawWorld();
+
+	pRenderContext->MatrixMode( MATERIAL_PROJECTION );
+	pRenderContext->PopMatrix();
+
+	pRenderContext->MatrixMode( MATERIAL_VIEW );
+	pRenderContext->PopMatrix();
+
+	pRenderContext->MatrixMode( MATERIAL_MODEL );
+	pRenderContext->PopMatrix();
+}
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