Index: client/clientshadowmgr.cpp
===================================================================
--- client/clientshadowmgr.cpp	(revision 1)
+++ client/clientshadowmgr.cpp	(working copy)
@@ -853,7 +853,13 @@
 	void RemoveShadowFromDirtyList( ClientShadowHandle_t handle );
 
 	// NOTE: this will ONLY return SHADOWS_NONE, SHADOWS_SIMPLE, or SHADOW_RENDER_TO_TEXTURE.
+public:
+	ShadowHandle_t GetShadowHandle( ClientShadowHandle_t clienthandle ){ return m_Shadows[ clienthandle ].m_ShadowHandle; };
+	int GetNumShadowDepthtextures(){ return m_DepthTextureCache.Count(); };
+	CTextureReference GetShadowDepthTex( int num ){ return m_DepthTextureCache[num]; };
+
 	ShadowType_t GetActualShadowCastType( ClientShadowHandle_t handle ) const;
+private:
 	ShadowType_t GetActualShadowCastType( IClientRenderable *pRenderable ) const;
 
 	// Builds a simple blobby shadow
Index: client/detailobjectsystem.cpp
===================================================================
--- client/detailobjectsystem.cpp	(revision 1)
+++ client/detailobjectsystem.cpp	(working copy)
@@ -22,6 +22,7 @@
 #include "env_detail_controller.h"
 #include "tier0/icommandline.h"
 #include "c_world.h"
+#include "ShaderEditor/Grass/CGrassCluster.h"
 
 //Tony; add the SDK into this as well by default.
 #if defined(DOD_DLL) || defined(CSTRIKE_DLL) || defined( SDK_DLL )
@@ -1940,6 +1941,13 @@
 	pSpritex4->m_RGBColor[nSubField][3] = 255;
 
 	pSpritex4->m_pSpriteDefs[nSubField] = pSDef;
+
+	_grassClusterInfo clusterHint;
+	clusterHint.orig = pos;
+	clusterHint.color.Init( color[0], color[1], color[2], 1 );
+	clusterHint.uv_min = pSDef->m_TexLR;
+	clusterHint.uv_max = pSDef->m_TexUL;
+	CGrassClusterManager::GetInstance()->AddClusterHint( clusterHint );
 }
 
 
Index: client/iclientshadowmgr.h
===================================================================
--- client/iclientshadowmgr.h	(revision 1)
+++ client/iclientshadowmgr.h	(working copy)
@@ -101,6 +100,10 @@
 
 	virtual void ComputeShadowDepthTextures( const CViewSetup &pView ) = 0;
 
+	virtual ShadowHandle_t GetShadowHandle( ClientShadowHandle_t clienthandle ) = 0;
+	virtual ShadowType_t GetActualShadowCastType( ClientShadowHandle_t handle ) const = 0;
+	virtual int GetNumShadowDepthtextures() = 0;
+	virtual CTextureReference GetShadowDepthTex( int num ) = 0;
 };
 
 
Index: client/viewrender.cpp
===================================================================
--- client/viewrender.cpp	(revision 1)
+++ client/viewrender.cpp	(working copy)
@@ -48,6 +48,7 @@
 #include "keyvalues.h"
 #include "renderparm.h"
 #include "con_nprint.h"
+#include "ShaderEditor/Grass/CGrassCluster.h"
 
 #ifdef PORTAL
 //#include "C_Portal_Player.h"
@@ -3856,6 +3870,8 @@
 	//
 	RopeManager()->DrawRenderCache( bShadowDepth );
 	g_pParticleSystemMgr->DrawRenderCache( bShadowDepth );
+
+	CGrassClusterManager::GetInstance()->RenderClusters( bShadowDepth );
 }