Mapbase v4.1

- Exposed CAmmoDef to VScript and changed ammo type functions accordingly - Added TakeHealth and IsAlive to CBaseEntity - Added $treeSway - Added several inputs to control env_wind keyvalues + a new $treeSway scale keyvalue - Added "Expanded name fixup" keyvalue to point_template which allows name fixup to fix up output parameters - Fixed the rope on rappelling NPCs causing graphical issues - Fixed prop_vehicle_prisoner_pod missing "EnterVehicle", "EnterVehicleImmediate", and "ExitVehicle" inputs - Fixed hostile citizens not damaging player - Fixed an uncommon npc_metropolice crash from when it's not in a squad - Made SetTarget input update target handling on NPCs - Changed ammo type functions to be more organized, added AmmoDef singleton - Added more precache functions - Added various misc. entity functions, like GetAllWeapons or AddOutput - Added more utility functions
2024-12-26 14:55:30 +03:00 · 2020-06-21 15:10:56 +00:00 · 2020-06-21 15:10:56 +00:00 · 418a9dcccc
commit 418a9dcccc
parent 5b2547a6ff
39 changed files with 923 additions and 67 deletions
--- a/sp/src/game/client/c_effects.cpp
+++ b/sp/src/game/client/c_effects.cpp
@ -1210,6 +1210,7 @@ BEGIN_RECV_TABLE_NOBASE(CEnvWindShared, DT_EnvWindShared)
 	RecvPropFloat	(RECVINFO(m_windRadius)),
 	RecvPropFloat	(RECVINFO(m_windRadiusInner)),
 	RecvPropVector	(RECVINFO(m_location)),
+	RecvPropFloat	(RECVINFO(m_flTreeSwayScale)),
 #endif
 END_RECV_TABLE()

--- a/sp/src/game/server/TemplateEntities.cpp
+++ b/sp/src/game/server/TemplateEntities.cpp
@ -159,6 +159,70 @@ string_t Templates_FindByTargetName(const char *pszName)
 	return NULL_STRING;
 }

+#ifdef MAPBASE
+//-----------------------------------------------------------------------------
+// Purpose: A new version of name fixup which targets all instances of a name
+//			in a keyvalue, including output parameters.
+//-----------------------------------------------------------------------------
+void Templates_NewNameFixup( CUtlVector< grouptemplate_t > &GroupTemplates, int i, int iCount, CEntityMapData *mapData, CUtlDict< int, int > &KeyInstanceCount, char *keyName, char *value )
+{
+	do 
+	{
+		// Ignore targetnames
+		if ( !stricmp( keyName, "targetname" ) )
+			continue;
+
+		// Add to the count for this 
+		int idx = KeyInstanceCount.Find( keyName );
+		if ( idx == KeyInstanceCount.InvalidIndex() )
+		{
+			idx = KeyInstanceCount.Insert( keyName, 0 );
+		}
+		KeyInstanceCount[idx]++;
+
+		// Loop through our group templates
+		for ( int iTName = 0; iTName < iCount; iTName++ )
+		{
+			char *pName = GroupTemplates[iTName].pszName;
+			if (strstr( value, pName ) == NULL)
+				continue;
+
+			if ( template_debug.GetInt() )
+			{
+				Msg("Template Connection Found: Key %s (\"%s\") in entity named \"%s\"(%d) matches entity %d's targetname\n", keyName, value, GroupTemplates[i].pszName, i, iTName );
+			}
+
+			char newvalue[MAPKEY_MAXLENGTH];
+			char fixedup[MAPKEY_MAXLENGTH];
+			Q_strncpy( fixedup, pName, MAPKEY_MAXLENGTH );
+			Q_strncat( fixedup, ENTITYIO_FIXUP_STRING, sizeof( fixedup ), COPY_ALL_CHARACTERS );
+
+			// Get the current key instance. (-1 because it's this one we're changing)
+			int nKeyInstance = KeyInstanceCount[idx] - 1;
+
+			// Add our IO value to the targetname
+			V_StrSubst( value, pName, fixedup, newvalue, MAPKEY_MAXLENGTH );
+
+			if ( template_debug.GetInt() )
+			{
+				Msg("	Fixed up value: Key %s with \"%s\" in entity named \"%s\"(%d) has become \"%s\"\n", keyName, value, GroupTemplates[i].pszName, i, newvalue );
+			}
+
+			mapData->SetValue( keyName, newvalue, nKeyInstance );
+			Q_strncpy( value, newvalue, MAPKEY_MAXLENGTH );
+			
+			// Remember we changed this targetname
+			GroupTemplates[iTName].bChangeTargetname = true;
+
+			// Set both entity's flags telling them their template needs fixup when it's spawned
+			g_Templates[ GroupTemplates[i].iIndex ]->bNeedsEntityIOFixup = true;
+			g_Templates[ GroupTemplates[iTName].iIndex ]->bNeedsEntityIOFixup = true;
+		}
+	} 
+	while ( mapData->GetNextKey(keyName, value) );
+}
+#endif
+
 //-----------------------------------------------------------------------------
 // Purpose: A CPointTemplate has asked us to reconnect all the entity I/O links
 //			inside it's templates. Go through the keys and add look for values
@ -208,6 +272,14 @@ void Templates_ReconnectIOForGroup( CPointTemplate *pGroup )
 			if ( !mapData->GetFirstKey(keyName, value) )
 				continue;

+#ifdef MAPBASE
+			if ( pGroup->NameFixupExpanded() )
+			{
+				Templates_NewNameFixup( GroupTemplates, i, iCount, mapData, KeyInstanceCount, keyName, value );
+				continue;
+			}
+#endif
+
 			do 
 			{
 				// Ignore targetnames
--- a/sp/src/game/server/ai_basenpc.cpp
+++ b/sp/src/game/server/ai_basenpc.cpp
@ -2041,6 +2041,29 @@ void CAI_BaseNPC::InputSetDistTooFar( inputdata_t &inputdata )
 		}
 	}
 }
+
+//------------------------------------------------------------------------------
+// Purpose:
+//------------------------------------------------------------------------------
+void CAI_BaseNPC::InputSetTarget( inputdata_t &inputdata )
+{
+	m_target = inputdata.value.StringID();
+
+	if ( m_target != NULL_STRING )// this npc has a target
+	{
+		// Find the npc's initial target entity, stash it
+		SetGoalEnt( gEntList.FindEntityByName( NULL, m_target ) );
+
+		if ( !GetGoalEnt() )
+		{
+			Warning( "ReadyNPC()--%s couldn't find target %s\n", GetClassname(), STRING(m_target));
+		}
+		else
+		{
+			StartTargetHandling( GetGoalEnt() );
+		}
+	}
+}
 #endif

 //---------------------------------------------------------
--- a/sp/src/game/server/ai_basenpc.h
+++ b/sp/src/game/server/ai_basenpc.h
@ -1117,6 +1117,9 @@ public:
 	CBaseEntity *GetEnemyOccluder(void);

 	virtual void		StartTargetHandling( CBaseEntity *pTargetEnt );
+#ifdef MAPBASE
+	void				InputSetTarget( inputdata_t &inputdata );
+#endif

 	//---------------------------------
 	
--- a/sp/src/game/server/ai_behavior_rappel.cpp
+++ b/sp/src/game/server/ai_behavior_rappel.cpp
@ -125,6 +125,9 @@ bool CAI_RappelBehavior::KeyValue( const char *szKeyName, const char *szValue )

 void CAI_RappelBehavior::Precache()
 {
+#ifdef MAPBASE
+	CBaseEntity::PrecacheModel( "cable/cable_rappel.vmt" );
+#endif
 	CBaseEntity::PrecacheModel( "cable/cable.vmt" );
 }

@ -386,7 +389,11 @@ void CAI_RappelBehavior::CreateZipline()
 		if( attachment > 0 )
 		{
 			CBeam *pBeam;
+#ifdef MAPBASE
+			pBeam = CBeam::BeamCreate( "cable/cable_rappel.vmt", 1 );
+#else
 			pBeam = CBeam::BeamCreate( "cable/cable.vmt", 1 );
+#endif
 			pBeam->SetColor( 150, 150, 150 );
 			pBeam->SetWidth( 0.3 );
 			pBeam->SetEndWidth( 0.3 );
--- a/sp/src/game/server/basecombatcharacter.cpp
+++ b/sp/src/game/server/basecombatcharacter.cpp
@ -157,6 +157,7 @@ BEGIN_ENT_SCRIPTDESC( CBaseCombatCharacter, CBaseFlex, "The base class shared by
 	DEFINE_SCRIPTFUNC( WeaponCount, "Get the number of weapons a character possesses." )
 	DEFINE_SCRIPTFUNC_NAMED( GetScriptWeaponIndex, "GetWeapon", "Get a specific weapon in the character's inventory." )
 	DEFINE_SCRIPTFUNC_NAMED( GetScriptWeaponByType, "FindWeapon", "Find a specific weapon in the character's inventory by its classname." )
+	DEFINE_SCRIPTFUNC_NAMED( GetScriptAllWeapons, "GetAllWeapons", "Get the character's weapon inventory." )

 	DEFINE_SCRIPTFUNC_NAMED( Weapon_ShootPosition, "ShootPosition", "Get the character's shoot position." )
 	DEFINE_SCRIPTFUNC_NAMED( Weapon_DropAll, "DropAllWeapons", "Make the character drop all of its weapons." )
@ -4377,6 +4378,19 @@ HSCRIPT CBaseCombatCharacter::GetScriptWeaponByType( const char *pszWeapon, int
 	return ToHScript( Weapon_OwnsThisType( pszWeapon, iSubType ) );
 }

+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+void CBaseCombatCharacter::GetScriptAllWeapons( HSCRIPT hTable )
+{
+	for (int i=0;i<MAX_WEAPONS;i++)
+	{
+		if (m_hMyWeapons[i]) 
+		{
+			g_pScriptVM->SetValue( hTable, m_hMyWeapons[i]->GetClassname(), ToHScript( m_hMyWeapons[i] ) );
+		}
+	}
+}
+
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 void CBaseCombatCharacter::ScriptEquipWeapon( HSCRIPT hWeapon )
--- a/sp/src/game/server/basecombatcharacter.h
+++ b/sp/src/game/server/basecombatcharacter.h
@ -414,6 +414,7 @@ public:
 	HSCRIPT				GetScriptActiveWeapon();
 	HSCRIPT				GetScriptWeaponIndex( int i );
 	HSCRIPT				GetScriptWeaponByType( const char *pszWeapon, int iSubType = 0 );
+	void				GetScriptAllWeapons( HSCRIPT hTable );

 	void				ScriptEquipWeapon( HSCRIPT hWeapon );

--- a/sp/src/game/server/baseentity.cpp
+++ b/sp/src/game/server/baseentity.cpp
@ -2210,11 +2210,15 @@ BEGIN_ENT_SCRIPTDESC_ROOT( CBaseEntity, "Root class of all server-side entities"
 	DEFINE_SCRIPTFUNC_NAMED( ScriptTakeDamage, "TakeDamage", "Apply damage to this entity with a given info handle" )
 	DEFINE_SCRIPTFUNC_NAMED( ScriptFireBullets, "FireBullets", "Fire bullets from entity with a given info handle" )

+	DEFINE_SCRIPTFUNC( TakeHealth, "Give this entity health" )
+	DEFINE_SCRIPTFUNC( IsAlive, "Return true if this entity is alive" )
+
 	DEFINE_SCRIPTFUNC_NAMED( ScriptGetContext, "GetContext", "Get a response context value" )
 	DEFINE_SCRIPTFUNC_NAMED( ScriptAddContext, "AddContext", "Add a response context value" )

 	DEFINE_SCRIPTFUNC_NAMED( ScriptClassify, "Classify", "Get Class_T class ID" )

+	DEFINE_SCRIPTFUNC_NAMED( ScriptAddOutput, "AddOutput", "Add an output" )
 	DEFINE_SCRIPTFUNC_NAMED( ScriptGetKeyValue, "GetKeyValue", "Get a keyvalue" )

 	DEFINE_SCRIPTFUNC( GetSpawnFlags, "Get spawnflags" )
@ -9605,6 +9609,14 @@ int CBaseEntity::ScriptClassify( void )
 	return (int)Classify();
 }

+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+bool CBaseEntity::ScriptAddOutput( const char *pszOutputName, const char *pszTarget, const char *pszAction, const char *pszParameter, float flDelay, int iMaxTimes )
+{
+	const char *pszValue = UTIL_VarArgs("%s,%s,%s,%f,%i", pszTarget, pszAction, pszParameter, flDelay, iMaxTimes);
+	return KeyValue( pszOutputName, pszValue );
+}
+
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 const char *CBaseEntity::ScriptGetKeyValue( const char *pszKeyName )
--- a/sp/src/game/server/baseentity.h
+++ b/sp/src/game/server/baseentity.h
@ -2018,6 +2018,7 @@ public:

 	int ScriptClassify(void);

+	bool ScriptAddOutput( const char *pszOutputName, const char *pszTarget, const char *pszAction, const char *pszParameter, float flDelay, int iMaxTimes );
 	const char *ScriptGetKeyValue( const char *pszKeyName );
 #endif

--- a/sp/src/game/server/effects.cpp
+++ b/sp/src/game/server/effects.cpp
@ -1594,6 +1594,7 @@ BEGIN_DATADESC( CEnvWind )
 #ifdef MAPBASE
 	DEFINE_KEYFIELD( m_EnvWindShared.m_windRadius, FIELD_FLOAT, "windradius" ),
 	DEFINE_KEYFIELD( m_EnvWindShared.m_windRadiusInner, FIELD_FLOAT, "windradiusinner" ),
+	DEFINE_KEYFIELD( m_EnvWindShared.m_flTreeSwayScale, FIELD_FLOAT, "treeswayscale" ),
 #endif

 // Just here to quiet down classcheck
@ -1602,6 +1603,20 @@ BEGIN_DATADESC( CEnvWind )
 	DEFINE_FIELD( m_EnvWindShared.m_iWindDir, FIELD_INTEGER ),
 	DEFINE_FIELD( m_EnvWindShared.m_flWindSpeed, FIELD_FLOAT ),

+#ifdef MAPBASE
+	DEFINE_INPUT( m_EnvWindShared.m_iMinWind, FIELD_INTEGER, "SetMinWind" ),
+	DEFINE_INPUT( m_EnvWindShared.m_iMaxWind, FIELD_INTEGER, "SetMaxWind" ),
+	DEFINE_INPUT( m_EnvWindShared.m_iMinGust, FIELD_INTEGER, "SetMinGust" ),
+	DEFINE_INPUT( m_EnvWindShared.m_iMaxGust, FIELD_INTEGER, "SetMaxGust" ),
+	DEFINE_INPUT( m_EnvWindShared.m_flMinGustDelay, FIELD_FLOAT, "SetMinGustDelay" ),
+	DEFINE_INPUT( m_EnvWindShared.m_flMaxGustDelay, FIELD_FLOAT, "SetMaxGustDelay" ),
+	DEFINE_INPUT( m_EnvWindShared.m_iGustDirChange, FIELD_INTEGER, "SetGustDirChange" ),
+	DEFINE_INPUT( m_EnvWindShared.m_flGustDuration, FIELD_FLOAT, "SetGustDuration" ),
+	DEFINE_INPUT( m_EnvWindShared.m_windRadius, FIELD_FLOAT, "SetWindRadius" ),
+	DEFINE_INPUT( m_EnvWindShared.m_windRadiusInner, FIELD_FLOAT, "SetWindRadiusInner" ),
+	DEFINE_INPUT( m_EnvWindShared.m_flTreeSwayScale, FIELD_FLOAT, "SetTreeSwayScale" ),
+#endif
+
 	DEFINE_OUTPUT( m_EnvWindShared.m_OnGustStart, "OnGustStart" ),
 	DEFINE_OUTPUT( m_EnvWindShared.m_OnGustEnd,	"OnGustEnd" ),

@ -1634,6 +1649,7 @@ BEGIN_SEND_TABLE_NOBASE(CEnvWindShared, DT_EnvWindShared)
 	SendPropFloat	(SENDINFO(m_windRadius), 0, SPROP_NOSCALE),
 	SendPropFloat	(SENDINFO(m_windRadiusInner), 0, SPROP_NOSCALE),
 	SendPropVector	(SENDINFO(m_location), -1, SPROP_COORD),
+	SendPropFloat	(SENDINFO(m_flTreeSwayScale), 0, SPROP_NOSCALE),
 #endif
 END_SEND_TABLE()

--- a/sp/src/game/server/hl2/npc_metropolice.cpp
+++ b/sp/src/game/server/hl2/npc_metropolice.cpp
@ -1055,7 +1055,12 @@ void CNPC_MetroPolice::SpeakSentence( int nSentenceType )
 					{
 						if ( SpeakIfAllowed( TLK_COP_PLAYERHIT, SENTENCE_PRIORITY_HIGH ) )
 						{
+#ifdef MAPBASE
+							if (GetSquad())
+								GetSquad()->SquadRemember(bits_MEMORY_PLAYER_HURT);
+#else
 							m_pSquad->SquadRemember(bits_MEMORY_PLAYER_HURT);
+#endif
 						}
 					}
 				}
--- a/sp/src/game/server/hl2/vehicle_prisoner_pod.cpp
+++ b/sp/src/game/server/hl2/vehicle_prisoner_pod.cpp
@ -115,10 +115,8 @@ public:
 	void HandleAnimEvent( animevent_t *pEvent );

 	// Inputs
-#ifndef MAPBASE
 	void InputEnterVehicleImmediate( inputdata_t &inputdata );
 	void InputEnterVehicle( inputdata_t &inputdata );
-#endif
 	void InputExitVehicle( inputdata_t &inputdata );
 	void InputLock( inputdata_t &inputdata );
 	void InputUnlock( inputdata_t &inputdata );
@ -190,10 +188,8 @@ BEGIN_DATADESC( CPropVehiclePrisonerPod )
 	// Inputs
 	DEFINE_INPUTFUNC( FIELD_VOID, "Lock",	InputLock ),
 	DEFINE_INPUTFUNC( FIELD_VOID, "Unlock",	InputUnlock ),
-#ifndef MAPBASE
 	DEFINE_INPUTFUNC( FIELD_VOID, "EnterVehicle", InputEnterVehicle ),
 	DEFINE_INPUTFUNC( FIELD_VOID, "EnterVehicleImmediate", InputEnterVehicleImmediate ),
-#endif
 	DEFINE_INPUTFUNC( FIELD_VOID, "ExitVehicle", InputExitVehicle ),
 	DEFINE_INPUTFUNC( FIELD_VOID, "Open", InputOpen ),
 	DEFINE_INPUTFUNC( FIELD_VOID, "Close", InputClose ),
@ -587,7 +583,6 @@ void CPropVehiclePrisonerPod::InputUnlock( inputdata_t &inputdata )
 }


-#ifndef MAPBASE
 //-----------------------------------------------------------------------------
 // Purpose: Force the player to enter the vehicle.
 //-----------------------------------------------------------------------------
@ -650,7 +645,6 @@ void CPropVehiclePrisonerPod::InputEnterVehicleImmediate( inputdata_t &inputdata
 		Assert( 0 );
 	}
 }
-#endif

 //-----------------------------------------------------------------------------
 // Purpose: Force the player to exit the vehicle.
--- a/sp/src/game/server/player.cpp
+++ b/sp/src/game/server/player.cpp
@ -980,7 +980,7 @@ void CBasePlayer::TraceAttack( const CTakeDamageInfo &inputInfo, const Vector &v
 			// --------------------------------------------------
 			CAI_BaseNPC *pNPC = info.GetAttacker()->MyNPCPointer();
 #ifdef MAPBASE
-			if ( pNPC && (pNPC->CapabilitiesGet() & bits_CAP_NO_HIT_PLAYER) && pNPC->IRelationType( this ) <= D_FR )
+			if ( pNPC && (pNPC->CapabilitiesGet() & bits_CAP_NO_HIT_PLAYER) && pNPC->IRelationType( this ) > D_FR )
 #else
 			if ( pNPC && (pNPC->CapabilitiesGet() & bits_CAP_NO_HIT_PLAYER) && pNPC->IRelationType( this ) != D_HT )
 #endif
--- a/sp/src/game/server/point_template.cpp
+++ b/sp/src/game/server/point_template.cpp
@ -55,6 +55,9 @@ BEGIN_DATADESC( CPointTemplate )
 	DEFINE_KEYFIELD( m_iszTemplateEntityNames[14], FIELD_STRING, "Template15"),
 	DEFINE_KEYFIELD( m_iszTemplateEntityNames[15], FIELD_STRING, "Template16"),
 	DEFINE_UTLVECTOR( m_hTemplateEntities, FIELD_CLASSPTR ),
+#ifdef MAPBASE
+	DEFINE_KEYFIELD( m_bFixupExpanded, FIELD_BOOLEAN, "FixupMode" ),
+#endif

 	DEFINE_UTLVECTOR( m_hTemplates, FIELD_EMBEDDED ),

--- a/sp/src/game/server/point_template.h
+++ b/sp/src/game/server/point_template.h
@ -46,6 +46,9 @@ public:
 	void			AddTemplate( CBaseEntity *pEntity, const char *pszMapData, int nLen );
 	bool			ShouldRemoveTemplateEntities( void );
 	bool			AllowNameFixup();
+#ifdef MAPBASE
+	bool			NameFixupExpanded() { return m_bFixupExpanded; }
+#endif

 	// Templates accessors
 	int				GetNumTemplates( void );
@ -74,6 +77,12 @@ private:
 	// code removes all the entities in it once it finishes turning them into templates.
 	CUtlVector< CBaseEntity * >		m_hTemplateEntities;

+#ifdef MAPBASE
+	// Allows name fixup to target all instances of a name in a keyvalue, including output parameters.
+	// TODO: Support for multiple fixup modes?
+	bool							m_bFixupExpanded;
+#endif
+
 	// List of templates, generated from our template entities.
 	CUtlVector< template_t >		m_hTemplates;

--- a/sp/src/game/shared/ammodef.cpp
+++ b/sp/src/game/shared/ammodef.cpp
@ -24,6 +24,21 @@ Ammo_t *CAmmoDef::GetAmmoOfIndex(int nAmmoIndex)
 	return &m_AmmoType[ nAmmoIndex ];
 }

+#ifdef MAPBASE
+//-----------------------------------------------------------------------------
+// Purpose:
+// Input  :
+// Output :
+//-----------------------------------------------------------------------------
+const char* CAmmoDef::Name(int nAmmoIndex)
+{
+	if ( nAmmoIndex < 1 || nAmmoIndex >= m_nAmmoIndex )
+		return NULL;
+
+	return m_AmmoType[nAmmoIndex].pName;
+}
+#endif
+
 //-----------------------------------------------------------------------------
 // Purpose:
 // Input  :
@ -292,4 +307,22 @@ CAmmoDef::~CAmmoDef( void )
 	}
 }

+#ifdef MAPBASE_VSCRIPT
+BEGIN_SCRIPTDESC_ROOT( CAmmoDef, SCRIPT_SINGLETON "The ammo type definition manager." )
+
+	DEFINE_SCRIPTFUNC( Name, "Gets the name of the specified ammo type index." )
+	DEFINE_SCRIPTFUNC( Index, "Gets the index of the specified ammo type name." )
+	DEFINE_SCRIPTFUNC( PlrDamage, "Gets the damage players deal for the specified ammo type." )
+	DEFINE_SCRIPTFUNC( NPCDamage, "Gets the damage NPCs deal for the specified ammo type." )
+	DEFINE_SCRIPTFUNC( MaxCarry, "Gets the maximum amount of this ammo type which players should be able to carry." )
+	DEFINE_SCRIPTFUNC( DamageType, "Gets the type of damage this ammo type deals." )
+	DEFINE_SCRIPTFUNC( TracerType, "Gets the type of tracer this ammo type uses." )
+	DEFINE_SCRIPTFUNC( DamageForce, "Gets the amount of force this ammo type deals." )
+	DEFINE_SCRIPTFUNC( MinSplashSize, "Gets the minimum size of water splashes caused by impacts from this ammo type." )
+	DEFINE_SCRIPTFUNC( MaxSplashSize, "Gets the maximum size of water splashes caused by impacts from this ammo type." )
+	DEFINE_SCRIPTFUNC( Flags, "Gets the flags this ammo type uses." )
+
+END_SCRIPTDESC();
+#endif
+

--- a/sp/src/game/shared/ammodef.h
+++ b/sp/src/game/shared/ammodef.h
@ -72,6 +72,9 @@ public:
 	Ammo_t				m_AmmoType[MAX_AMMO_TYPES];

 	Ammo_t				*GetAmmoOfIndex(int nAmmoIndex);
+#ifdef MAPBASE
+	const char*			Name(int nAmmoIndex);
+#endif
 	int					Index(const char *psz);
 	int					PlrDamage(int nAmmoIndex);
 	int					NPCDamage(int nAmmoIndex);
--- a/sp/src/game/shared/basecombatweapon_shared.cpp
+++ b/sp/src/game/shared/basecombatweapon_shared.cpp
@ -1801,22 +1801,6 @@ void CBaseCombatWeapon::InputHideWeapon( inputdata_t &inputdata )
 		SetWeaponVisible( false );
 	}
 }
-
-#ifdef MAPBASE_VSCRIPT
-//-----------------------------------------------------------------------------
-//-----------------------------------------------------------------------------
-const char *CBaseCombatWeapon::ScriptGetPrimaryAmmoType()
-{
-	return GetPrimaryAmmoType() <= GetAmmoDef()->m_nAmmoIndex ? GetAmmoDef()->m_AmmoType[GetPrimaryAmmoType()].pName : NULL;
-}
-
-//-----------------------------------------------------------------------------
-//-----------------------------------------------------------------------------
-const char *CBaseCombatWeapon::ScriptGetSecondaryAmmoType()
-{
-	return GetSecondaryAmmoType() <= GetAmmoDef()->m_nAmmoIndex ? GetAmmoDef()->m_AmmoType[GetSecondaryAmmoType()].pName : NULL;
-}
-#endif
 #endif

 //-----------------------------------------------------------------------------
@ -2910,8 +2894,8 @@ BEGIN_ENT_SCRIPTDESC( CBaseCombatWeapon, CBaseAnimating, "The base class for all
 	DEFINE_SCRIPTFUNC( UsesClipsForAmmo2, "Check if the weapon uses clips for secondary ammo." )

 #ifndef CLIENT_DLL
-	DEFINE_SCRIPTFUNC_NAMED( ScriptGetPrimaryAmmoType, "GetPrimaryAmmoType", "Get the weapon's primary ammo type." )
-	DEFINE_SCRIPTFUNC_NAMED( ScriptGetSecondaryAmmoType, "GetSecondaryAmmoType", "Get the weapon's secondary ammo type." )
+	DEFINE_SCRIPTFUNC( GetPrimaryAmmoType, "Get the weapon's primary ammo type." )
+	DEFINE_SCRIPTFUNC( GetSecondaryAmmoType, "Get the weapon's secondary ammo type." )
 #endif

 	DEFINE_SCRIPTFUNC( GetSubType, "Get the weapon's subtype." )
--- a/sp/src/game/shared/basecombatweapon_shared.h
+++ b/sp/src/game/shared/basecombatweapon_shared.h
@ -519,11 +519,6 @@ public:

 	virtual CDmgAccumulator	*GetDmgAccumulator( void ) { return NULL; }

-#ifdef MAPBASE_VSCRIPT
-	const char*				ScriptGetPrimaryAmmoType();
-	const char*				ScriptGetSecondaryAmmoType();
-#endif
-
 // Client only methods
 #else

--- a/sp/src/game/shared/env_wind_shared.cpp
+++ b/sp/src/game/shared/env_wind_shared.cpp
@ -70,6 +70,9 @@
 #include "IEffects.h"
 #include "engine/IEngineSound.h"
 #include "sharedInterface.h"
+#ifdef CLIENT_DLL
+#include "renderparm.h"
+#endif

 // memdbgon must be the last include file in a .cpp file!!!
 #include "tier0/memdbgon.h"
@ -89,6 +92,7 @@ CEnvWindShared::CEnvWindShared() : m_WindAveQueue(10), m_WindVariationQueue(10)
 #ifdef MAPBASE
 	s_windControllers.AddToTail( this );
 	m_windRadius = -1.0f;
+	m_flTreeSwayScale = 1.0f;
 #endif
 }

@ -180,6 +184,31 @@ void CEnvWindShared::UpdateWindSound( float flTotalWindSpeed )
 }


+#ifdef MAPBASE
+#define TREE_SWAY_UPDATE_TIME 2.0f
+
+void CEnvWindShared::UpdateTreeSway( float flTime )
+{
+#ifdef CLIENT_DLL
+	while( flTime >= m_flSwayTime )
+	{
+		// Since the wind is constantly changing, but we need smooth values, we cache them off here.
+		m_PrevSwayVector = m_CurrentSwayVector;
+		m_CurrentSwayVector = m_flTreeSwayScale != 1.0f ? (m_currentWindVector * m_flTreeSwayScale) : m_currentWindVector;
+		m_flSwayTime += TREE_SWAY_UPDATE_TIME;
+	}
+
+	// Update vertex shader
+	float flPercentage = ( 1 - ( ( m_flSwayTime - flTime ) / TREE_SWAY_UPDATE_TIME ) );
+	CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
+	// Dividing by 2 helps the numbers the shader is expecting stay in line with other expected game values.
+	Vector vecWind = Lerp( flPercentage, m_PrevSwayVector, m_CurrentSwayVector ) / 25.f;
+	pRenderContext->SetVectorRenderingParameter( VECTOR_RENDERPARM_WIND_DIRECTION, vecWind );
+#endif
+}
+#endif
+
+
 //-----------------------------------------------------------------------------
 // Updates the wind speed
 //-----------------------------------------------------------------------------
@ -196,6 +225,14 @@ float CEnvWindShared::WindThink( float flTime )

 	ComputeWindVariation( flTime );

+#if defined(MAPBASE) && defined(CLIENT_DLL)
+	if (m_flTreeSwayScale != 0.0f)
+	{
+		// Update Tree Sway
+		UpdateTreeSway( flTime );
+	}
+#endif
+
 	while (true)
 	{
 		// First, simulate up to the next switch time...
--- a/sp/src/game/shared/env_wind_shared.h
+++ b/sp/src/game/shared/env_wind_shared.h
@ -183,6 +183,10 @@ public:

 #ifdef MAPBASE
 	Vector m_currentWindVector;	// For all the talk of proper prediction, we ended up just storing and returning through a static vector.  Now we can have multiple env_wind, so we need this in here.
+	Vector m_CurrentSwayVector;
+	Vector m_PrevSwayVector;
+
+	CNetworkVar( float, m_flTreeSwayScale );
 #endif

 	CNetworkVar( int, m_iInitialWindDir );
@ -211,7 +215,12 @@ private:
 	// Updates the wind sound
 	void UpdateWindSound( float flTotalWindSpeed );

+#ifdef MAPBASE
+	void UpdateTreeSway( float flTime );
+#endif
+
 	float	m_flVariationTime;
+	float	m_flSwayTime;
 	float	m_flSimTime;		// What's the time I last simulated up to?
 	float	m_flSwitchTime;		// when do I actually switch from gust to not gust
 	float	m_flAveWindSpeed;	// the average wind speed
--- a/sp/src/game/shared/mapbase/vscript_funcs_shared.cpp
+++ b/sp/src/game/shared/mapbase/vscript_funcs_shared.cpp
@ -12,6 +12,7 @@
 #include "cbase.h"
 #include "matchers.h"
 #include "takedamageinfo.h"
+#include "ammodef.h"

 #ifndef CLIENT_DLL
 #include "globalstate.h"
@ -752,6 +753,19 @@ FireBulletsInfo_t *GetFireBulletsInfoFromInfo( HSCRIPT hBulletsInfo )
 //=============================================================================
 //=============================================================================

+static int ScriptPrecacheModel( const char *modelname )
+{
+	return CBaseEntity::PrecacheModel( modelname );
+}
+
+static void ScriptPrecacheOther( const char *classname )
+{
+	UTIL_PrecacheOther( classname );
+}
+
+//=============================================================================
+//=============================================================================
+
 static void ScriptEntitiesInBox( HSCRIPT hTable, int listMax, const Vector &hullMin, const Vector &hullMax, int iMask )
 {
 	CBaseEntity *list[1024];
@ -785,6 +799,14 @@ static void ScriptEntitiesInSphere( HSCRIPT hTable, int listMax, const Vector &c
 	}
 }

+//-----------------------------------------------------------------------------
+
+static void ScriptDecalTrace( HSCRIPT hTrace, const char *decalName )
+{
+	CTraceInfoAccessor *traceInfo = HScriptToClass<CTraceInfoAccessor>(hTrace);
+	UTIL_DecalTrace( &traceInfo->GetTrace(), decalName );
+}
+
 //=============================================================================
 //=============================================================================

@ -813,6 +835,8 @@ void RegisterSharedScriptFunctions()
 	ScriptRegisterFunction( g_pScriptVM, SpawnEntityFromTable, "Native function for entity spawning." );
 #endif

+	g_pScriptVM->RegisterInstance( GetAmmoDef(), "AmmoDef" );
+
 	g_pScriptVM->RegisterInstance( &g_ScriptConvarLookup, "Convars" );
 	g_pScriptVM->RegisterInstance( &g_ScriptNetPropManager, "NetProps" );

@ -839,10 +863,23 @@ void RegisterSharedScriptFunctions()
 	ScriptRegisterFunctionNamed( g_pScriptVM, ScriptTraceLineComplex, "TraceLineComplex", "Complex version of TraceLine which takes 2 points, an ent to ignore, a trace mask, and a collision group. Returns a handle which can access all trace info." );
 	ScriptRegisterFunctionNamed( g_pScriptVM, ScriptTraceHullComplex, "TraceHullComplex", "Takes 2 points, min/max hull bounds, an ent to ignore, a trace mask, and a collision group to trace to a point using a hull. Returns a handle which can access all trace info." );

+	// 
+	// Precaching
+	// 
+	ScriptRegisterFunctionNamed( g_pScriptVM, ScriptPrecacheModel, "PrecacheModel", "Precaches a model for later usage." );
+	ScriptRegisterFunction( g_pScriptVM, PrecacheMaterial, "Precaches a material for later usage." );
+	ScriptRegisterFunction( g_pScriptVM, PrecacheParticleSystem, "Precaches a particle system for later usage." );
+	ScriptRegisterFunctionNamed( g_pScriptVM, ScriptPrecacheOther, "PrecacheOther", "Precaches an entity class for later usage." );
+
+	// 
+	// Misc. Utility
+	// 
 	ScriptRegisterFunctionNamed( g_pScriptVM, ScriptEntitiesInBox, "EntitiesInBox", "Gets all entities which are within a worldspace box." );
 	ScriptRegisterFunctionNamed( g_pScriptVM, ScriptEntitiesAtPoint, "EntitiesAtPoint", "Gets all entities which are intersecting a point in space." );
 	ScriptRegisterFunctionNamed( g_pScriptVM, ScriptEntitiesInSphere, "EntitiesInSphere", "Gets all entities which are within a sphere." );

+	ScriptRegisterFunctionNamed( g_pScriptVM, ScriptDecalTrace, "DecalTrace", "Creates a dynamic decal based on the given trace info. The trace information can be generated by TraceLineComplex() and the decal name must be from decals_subrect.txt." );
+
 	ScriptRegisterFunctionNamed( g_pScriptVM, ScriptMatcherMatch, "Matcher_Match", "Compares a string to a query using Mapbase's matcher system, supporting wildcards, RS matchers, etc." );
 	ScriptRegisterFunction( g_pScriptVM, Matcher_NamesMatch, "Compares a string to a query using Mapbase's matcher system using wildcards only." );
 	ScriptRegisterFunction( g_pScriptVM, AppearsToBeANumber, "Checks if the given string appears to be a number." );
--- a/sp/src/materialsystem/stdshaders/SDK_depthwrite_vs20.fxc
+++ b/sp/src/materialsystem/stdshaders/SDK_depthwrite_vs20.fxc
@ -1,6 +1,7 @@
 //	STATIC: "ONLY_PROJECT_POSITION"	"0..1" [XBOX]
 //	STATIC: "ONLY_PROJECT_POSITION"	"0..0" [PC]
 //  STATIC: "COLOR_DEPTH"			"0..1"
+//	STATIC: "TREESWAY"				"0..2"

 //	DYNAMIC: "COMPRESSED_VERTS"		"0..1"
 //	DYNAMIC: "SKINNING"				"0..1"
@ -19,6 +20,37 @@ const float4 cMorphSubrect					: register( SHADER_SPECIFIC_CONST_7 );
 sampler2D morphSampler : register( D3DVERTEXTEXTURESAMPLER0, s0 );
 #endif

+#if ( TREESWAY )
+	const float4 g_vTreeSwayParams0			: register( SHADER_SPECIFIC_CONST_2 );
+	const float4 g_vTreeSwayParams1			: register( SHADER_SPECIFIC_CONST_3 );
+	const float4 g_vTreeSwayParams2			: register( SHADER_SPECIFIC_CONST_4 );
+	const float4 g_vTreeSwayParams3			: register( SHADER_SPECIFIC_CONST_5 );
+	const float4 g_vTreeSwayParams4			: register( SHADER_SPECIFIC_CONST_9 );
+
+	#define g_flTime				g_vTreeSwayParams0.x
+	#define g_vWindDir				g_vTreeSwayParams0.yz
+
+	#define g_flScrumbleFalloffCurve g_vTreeSwayParams1.x
+	#define g_flSwayFalloffCurve	g_vTreeSwayParams1.y
+	#define g_flScrumbleSpeed		g_vTreeSwayParams1.z
+	#define g_flFastSwaySpeedScale	g_vTreeSwayParams1.w
+
+
+	#define g_flHeight				g_vTreeSwayParams2.x
+	#define g_flStartHeight			g_vTreeSwayParams2.y
+	#define g_flRadius				g_vTreeSwayParams2.z
+	#define g_flStartRadius			g_vTreeSwayParams2.w
+
+	#define g_flSwaySpeed			g_vTreeSwayParams3.x
+	#define g_flSwayIntensity		g_vTreeSwayParams3.y
+	#define g_flScrumbleWaveCount	g_vTreeSwayParams3.z
+	#define g_flScrumbleIntensity	g_vTreeSwayParams3.w
+
+	#define g_flWindSpeedLerpStart	g_vTreeSwayParams4.x
+	#define g_flWindSpeedLerpEnd	g_vTreeSwayParams4.y
+	
+	#include "tree_sway.h"
+#endif

 struct VS_INPUT
 {
@ -62,6 +94,12 @@ VS_OUTPUT main( const VS_INPUT v )
 		v.vVertexID, float3(0, 0, 0), vPosition.xyz );
 #endif

+	#if ( TREESWAY )
+	{
+		vPosition.xyz = ComputeTreeSway( vPosition.xyz, g_flTime );
+	}
+	#endif
+
 	SkinPosition( g_bSkinning, vPosition, v.vBoneWeights, v.vBoneIndices, vWorldPos );

 	float4 vProjPos = mul( float4( vWorldPos, 1.0f ), cViewProj );
--- a/sp/src/materialsystem/stdshaders/SDK_vertexlit_and_unlit_generic_vs20.fxc
+++ b/sp/src/materialsystem/stdshaders/SDK_vertexlit_and_unlit_generic_vs20.fxc
@ -11,6 +11,7 @@
 //  STATIC: "SM30_VERTEXID"			"0..1" [vs30]
 //  STATIC: "USE_STATIC_CONTROL_FLOW"	"0..1" [vs20]
 //  STATIC: "DONT_GAMMA_CONVERT_VERTEX_COLOR" "0..1"
+//  STATIC: "TREESWAY"					"0..2"
 //  DYNAMIC: "COMPRESSED_VERTS"			"0..1"
 //	DYNAMIC: "DYNAMIC_LIGHT"			"0..1"
 //	DYNAMIC: "STATIC_LIGHT"				"0..1"
@ -25,6 +26,7 @@
 // SKIP: $USE_STATIC_CONTROL_FLOW && ( $NUM_LIGHTS > 0 ) [vs20]
 // SKIP: ($SEPARATE_DETAIL_UVS) && ($SEAMLESS_DETAIL)
 // SKIP: ($DONT_GAMMA_CONVERT_VERTEX_COLOR && ( ! $VERTEXCOLOR ) )
+// SKIP: ( $TREESWAY ) && ( $SEAMLESS_DETAIL || $SEAMLESS_BASE )
 #include "common_vs_fxc.h"
 
 static const bool g_bSkinning		= SKINNING ? true : false;
@ -51,6 +53,34 @@ const float4 cDetailTexCoordTransform[2]	:  register( SHADER_SPECIFIC_CONST_4 );
 const float4x4 g_FlashlightWorldToTexture :  register( SHADER_SPECIFIC_CONST_6 ); // 6, 7, 8, 9
 #endif

+#if ( TREESWAY )
+const float4 g_vMiscParams1					: register( SHADER_SPECIFIC_CONST_6 );
+const float4 g_vMiscParams2					: register( SHADER_SPECIFIC_CONST_7 );
+const float4 g_vMiscParams3					: register( SHADER_SPECIFIC_CONST_8 );
+const float4 g_vMiscParams4					: register( SHADER_SPECIFIC_CONST_9 );
+#define g_flTime g_vMiscParams2.y
+#define g_vWindDir g_vMiscParams2.zw
+
+#define g_flFastSwaySpeedScale g_vMiscParams1.x
+#define g_flScrumbleFalloffCurve g_vMiscParams1.y
+#define g_flSwayFalloffCurve g_vMiscParams1.z
+#define g_flScrumbleSpeed g_vMiscParams1.w
+
+#define g_flHeight g_vMiscParams3.x
+#define g_flStartHeight g_vMiscParams3.y
+#define g_flRadius g_vMiscParams3.z
+#define g_flStartRadius g_vMiscParams3.w
+
+#define g_flSwaySpeed g_vMiscParams4.x
+#define g_flSwayIntensity g_vMiscParams4.y
+#define g_flScrumbleWaveCount g_vMiscParams4.z
+#define g_flScrumbleIntensity g_vMiscParams4.w
+
+#define g_flWindSpeedLerpStart cDetailTexCoordTransform[0].x
+#define g_flWindSpeedLerpEnd cDetailTexCoordTransform[0].y
+#include "tree_sway.h"
+#endif
+
 #if defined( SHADER_MODEL_VS_3_0 ) && SM30_VERTEXID
 // NOTE: cMorphTargetTextureDim.xy = target dimensions,
 //		 cMorphTargetTextureDim.z = 4tuples/morph
@ -149,6 +179,10 @@ VS_OUTPUT main( const VS_INPUT v )
 	ApplyMorph( morphSampler, cMorphTargetTextureDim, cMorphSubrect, 
 		v.vVertexID, v.vTexCoord2, vPosition.xyz, vNormal );
 #endif
+
+#if ( TREESWAY )
+	vPosition.xyz = ComputeTreeSway( vPosition.xyz, g_flTime );
+#endif
 	  
 	// Perform skinning
 	float3 worldNormal, worldPos;
@ -225,10 +259,18 @@ VS_OUTPUT main( const VS_INPUT v )
 	// that scale works. More smartness could allow 3d xform.
 	o.SeamlessDetailTexCoord.xyz = (SEAMLESS_SCALE*cDetailTexCoordTransform[0].x) * v.vPos.xyz;
 #else
-	// Detail texture coordinates
-	// FIXME: This shouldn't have to be computed all the time.
-	o.detailTexCoord.x = dot( v.vTexCoord0, cDetailTexCoordTransform[0] );
-	o.detailTexCoord.y = dot( v.vTexCoord0, cDetailTexCoordTransform[1] );
+		#if ( TREESWAY )
+		{
+			o.detailTexCoord.xy = v.vTexCoord0;
+		}
+		#else
+		{
+			// Detail texture coordinates
+			// FIXME: This shouldn't have to be computed all the time.
+			o.detailTexCoord.x = dot( v.vTexCoord0, cDetailTexCoordTransform[0] );
+			o.detailTexCoord.y = dot( v.vTexCoord0, cDetailTexCoordTransform[1] );
+		}
+		#endif
 #endif

 #if SEPARATE_DETAIL_UVS
--- a/sp/src/materialsystem/stdshaders/depthwrite.cpp
+++ b/sp/src/materialsystem/stdshaders/depthwrite.cpp
@ -22,6 +22,25 @@ BEGIN_VS_SHADER_FLAGS( SDK_DepthWrite, "Help for Depth Write", SHADER_NOT_EDITAB
 	BEGIN_SHADER_PARAMS
 		SHADER_PARAM( ALPHATESTREFERENCE, SHADER_PARAM_TYPE_FLOAT, "", "Alpha reference value" )
 		SHADER_PARAM( COLOR_DEPTH, SHADER_PARAM_TYPE_BOOL, "0", "Write depth as color")
+		
+		// vertexlitgeneric tree sway animation control
+		SHADER_PARAM( TREESWAY, SHADER_PARAM_TYPE_INTEGER, "0", "" )
+		SHADER_PARAM( TREESWAYHEIGHT, SHADER_PARAM_TYPE_FLOAT, "1000", "" )
+		SHADER_PARAM( TREESWAYSTARTHEIGHT, SHADER_PARAM_TYPE_FLOAT, "0.2", "" )
+		SHADER_PARAM( TREESWAYRADIUS, SHADER_PARAM_TYPE_FLOAT, "300", "" )
+		SHADER_PARAM( TREESWAYSTARTRADIUS, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYSPEED, SHADER_PARAM_TYPE_FLOAT, "1", "" )
+		SHADER_PARAM( TREESWAYSPEEDHIGHWINDMULTIPLIER, SHADER_PARAM_TYPE_FLOAT, "2", "" )
+		SHADER_PARAM( TREESWAYSTRENGTH, SHADER_PARAM_TYPE_FLOAT, "10", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLESPEED, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLESTRENGTH, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLEFREQUENCY, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYFALLOFFEXP, SHADER_PARAM_TYPE_FLOAT, "1.5", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLEFALLOFFEXP, SHADER_PARAM_TYPE_FLOAT, "1.0", "" )
+		SHADER_PARAM( TREESWAYSPEEDLERPSTART, SHADER_PARAM_TYPE_FLOAT, "3", "" )
+		SHADER_PARAM( TREESWAYSPEEDLERPEND, SHADER_PARAM_TYPE_FLOAT, "6", "" )
+		SHADER_PARAM( TREESWAYSTATIC, SHADER_PARAM_TYPE_BOOL, "0", "" )
+		SHADER_PARAM( TREESWAYSTATICVALUES, SHADER_PARAM_TYPE_VEC2, "[0.5 0.5]", "" )
 	END_SHADER_PARAMS

 	SHADER_INIT_PARAMS()
@ -46,6 +65,7 @@ BEGIN_VS_SHADER_FLAGS( SDK_DepthWrite, "Help for Depth Write", SHADER_NOT_EDITAB
 	{
 		bool bAlphaClip = IS_FLAG_SET( MATERIAL_VAR_ALPHATEST );
 		int nColorDepth = GetIntParam( COLOR_DEPTH, params, 0 );
+		int nTreeSwayMode = clamp( GetIntParam( TREESWAY, params, 0 ), 0, 2 );

 		SHADOW_STATE
 		{
@ -79,6 +99,7 @@ BEGIN_VS_SHADER_FLAGS( SDK_DepthWrite, "Help for Depth Write", SHADER_NOT_EDITAB
 				DECLARE_STATIC_VERTEX_SHADER( sdk_depthwrite_vs20 );
 				SET_STATIC_VERTEX_SHADER_COMBO( ONLY_PROJECT_POSITION, !bAlphaClip && IsX360() && !nColorDepth ); //360 needs to know if it *shouldn't* output texture coordinates to avoid shader patches
 				SET_STATIC_VERTEX_SHADER_COMBO( COLOR_DEPTH, nColorDepth );
+				SET_STATIC_VERTEX_SHADER_COMBO( TREESWAY, nTreeSwayMode );
 				SET_STATIC_VERTEX_SHADER( sdk_depthwrite_vs20 );
 				
 				if ( bAlphaClip || g_pHardwareConfig->PlatformRequiresNonNullPixelShaders() || nColorDepth )
@ -111,6 +132,7 @@ BEGIN_VS_SHADER_FLAGS( SDK_DepthWrite, "Help for Depth Write", SHADER_NOT_EDITAB
 				DECLARE_STATIC_VERTEX_SHADER( sdk_depthwrite_vs30 );
 				SET_STATIC_VERTEX_SHADER_COMBO( ONLY_PROJECT_POSITION, 0 ); //360 only combo, and this is a PC path
 				SET_STATIC_VERTEX_SHADER_COMBO( COLOR_DEPTH, nColorDepth );
+				SET_STATIC_VERTEX_SHADER_COMBO( TREESWAY, nTreeSwayMode );
 				SET_STATIC_VERTEX_SHADER( sdk_depthwrite_vs30 );

 				pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
@ -190,6 +212,50 @@ BEGIN_VS_SHADER_FLAGS( SDK_DepthWrite, "Help for Depth Write", SHADER_NOT_EDITAB
 			}
 #endif

+			if ( nTreeSwayMode != 0 )
+			{
+				float flParams[4];
+
+				flParams[0] = pShaderAPI->CurrentTime();
+				if (params[TREESWAYSTATIC]->GetIntValue() == 0)
+				{
+					const Vector& windDir = pShaderAPI->GetVectorRenderingParameter( VECTOR_RENDERPARM_WIND_DIRECTION );
+					flParams[1] = windDir.x;
+					flParams[2] = windDir.y;
+				}
+				else
+				{
+					// Use a static value instead of the env_wind value.
+					params[TREESWAYSTATICVALUES]->GetVecValue( flParams + 1, 2 );
+				}
+				flParams[3] = 0.0f;
+				pShaderAPI->SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_2, flParams );
+
+				flParams[0] = GetFloatParam( TREESWAYSCRUMBLEFALLOFFEXP, params, 1.0f );
+				flParams[1] = GetFloatParam( TREESWAYFALLOFFEXP, params, 1.0f );
+				flParams[2] = GetFloatParam( TREESWAYSCRUMBLESPEED, params, 3.0f );
+				flParams[3] = GetFloatParam( TREESWAYSPEEDHIGHWINDMULTIPLIER, params, 2.0f );
+				pShaderAPI->SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_3, flParams );
+
+				flParams[0] = GetFloatParam( TREESWAYHEIGHT, params, 1000.0f );
+				flParams[1] = GetFloatParam( TREESWAYSTARTHEIGHT, params, 0.1f );
+				flParams[2] = GetFloatParam( TREESWAYRADIUS, params, 300.0f );
+				flParams[3] = GetFloatParam( TREESWAYSTARTRADIUS, params, 0.2f );
+				pShaderAPI->SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_4, flParams );
+
+				flParams[0] = GetFloatParam( TREESWAYSPEED, params, 1.0f );
+				flParams[1] = GetFloatParam( TREESWAYSTRENGTH, params, 10.0f );
+				flParams[2] = GetFloatParam( TREESWAYSCRUMBLEFREQUENCY, params, 12.0f );
+				flParams[3] = GetFloatParam( TREESWAYSCRUMBLESTRENGTH, params, 10.0f );
+				pShaderAPI->SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_5, flParams );
+
+				flParams[0] = GetFloatParam( TREESWAYSPEEDLERPSTART, params, 3.0f );
+				flParams[1] = GetFloatParam( TREESWAYSPEEDLERPEND, params, 6.0f );
+				flParams[2] = 0.0f;
+				flParams[3] = 0.0f;
+				pShaderAPI->SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_9, flParams );
+			}
+
 			Vector4D vParms;

 			// set up arbitrary far planes, as the real ones are too far ( 30,000 )
--- a/sp/src/materialsystem/stdshaders/fxctmp9/SDK_depthwrite_vs20.inc
+++ b/sp/src/materialsystem/stdshaders/fxctmp9/SDK_depthwrite_vs20.inc
@ -43,6 +43,27 @@ public:
 		m_bCOLOR_DEPTH = true;
 #endif
 	}
+private:
+	int m_nTREESWAY;
+#ifdef _DEBUG
+	bool m_bTREESWAY;
+#endif
+public:
+	void SetTREESWAY( int i )
+	{
+		Assert( i >= 0 && i <= 2 );
+		m_nTREESWAY = i;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
+	void SetTREESWAY( bool i )
+	{
+		m_nTREESWAY = i ? 1 : 0;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
 public:
 	sdk_depthwrite_vs20_Static_Index( )
 	{
@ -54,19 +75,23 @@ public:
 		m_bCOLOR_DEPTH = false;
 #endif // _DEBUG
 		m_nCOLOR_DEPTH = 0;
+#ifdef _DEBUG
+		m_bTREESWAY = false;
+#endif // _DEBUG
+		m_nTREESWAY = 0;
 	}
 	int GetIndex()
 	{
 		// Asserts to make sure that we aren't using any skipped combinations.
 		// Asserts to make sure that we are setting all of the combination vars.
 #ifdef _DEBUG
-		bool bAllStaticVarsDefined = m_bONLY_PROJECT_POSITION && m_bCOLOR_DEPTH;
+		bool bAllStaticVarsDefined = m_bONLY_PROJECT_POSITION && m_bCOLOR_DEPTH && m_bTREESWAY;
 		Assert( bAllStaticVarsDefined );
 #endif // _DEBUG
-		return ( 4 * m_nONLY_PROJECT_POSITION ) + ( 4 * m_nCOLOR_DEPTH ) + 0;
+		return ( 4 * m_nONLY_PROJECT_POSITION ) + ( 4 * m_nCOLOR_DEPTH ) + ( 8 * m_nTREESWAY ) + 0;
 	}
 };
-#define shaderStaticTest_sdk_depthwrite_vs20 vsh_forgot_to_set_static_ONLY_PROJECT_POSITION + vsh_forgot_to_set_static_COLOR_DEPTH + 0
+#define shaderStaticTest_sdk_depthwrite_vs20 vsh_forgot_to_set_static_ONLY_PROJECT_POSITION + vsh_forgot_to_set_static_COLOR_DEPTH + vsh_forgot_to_set_static_TREESWAY + 0
 class sdk_depthwrite_vs20_Dynamic_Index
 {
 private:
--- a/sp/src/materialsystem/stdshaders/fxctmp9/SDK_depthwrite_vs30.inc
+++ b/sp/src/materialsystem/stdshaders/fxctmp9/SDK_depthwrite_vs30.inc
@ -43,6 +43,27 @@ public:
 		m_bCOLOR_DEPTH = true;
 #endif
 	}
+private:
+	int m_nTREESWAY;
+#ifdef _DEBUG
+	bool m_bTREESWAY;
+#endif
+public:
+	void SetTREESWAY( int i )
+	{
+		Assert( i >= 0 && i <= 2 );
+		m_nTREESWAY = i;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
+	void SetTREESWAY( bool i )
+	{
+		m_nTREESWAY = i ? 1 : 0;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
 public:
 	sdk_depthwrite_vs30_Static_Index( )
 	{
@ -54,19 +75,23 @@ public:
 		m_bCOLOR_DEPTH = false;
 #endif // _DEBUG
 		m_nCOLOR_DEPTH = 0;
+#ifdef _DEBUG
+		m_bTREESWAY = false;
+#endif // _DEBUG
+		m_nTREESWAY = 0;
 	}
 	int GetIndex()
 	{
 		// Asserts to make sure that we aren't using any skipped combinations.
 		// Asserts to make sure that we are setting all of the combination vars.
 #ifdef _DEBUG
-		bool bAllStaticVarsDefined = m_bONLY_PROJECT_POSITION && m_bCOLOR_DEPTH;
+		bool bAllStaticVarsDefined = m_bONLY_PROJECT_POSITION && m_bCOLOR_DEPTH && m_bTREESWAY;
 		Assert( bAllStaticVarsDefined );
 #endif // _DEBUG
-		return ( 8 * m_nONLY_PROJECT_POSITION ) + ( 8 * m_nCOLOR_DEPTH ) + 0;
+		return ( 8 * m_nONLY_PROJECT_POSITION ) + ( 8 * m_nCOLOR_DEPTH ) + ( 16 * m_nTREESWAY ) + 0;
 	}
 };
-#define shaderStaticTest_sdk_depthwrite_vs30 vsh_forgot_to_set_static_ONLY_PROJECT_POSITION + vsh_forgot_to_set_static_COLOR_DEPTH + 0
+#define shaderStaticTest_sdk_depthwrite_vs30 vsh_forgot_to_set_static_ONLY_PROJECT_POSITION + vsh_forgot_to_set_static_COLOR_DEPTH + vsh_forgot_to_set_static_TREESWAY + 0
 class sdk_depthwrite_vs30_Dynamic_Index
 {
 private:
--- a/sp/src/materialsystem/stdshaders/fxctmp9/SDK_vertexlit_and_unlit_generic_vs20.inc
+++ b/sp/src/materialsystem/stdshaders/fxctmp9/SDK_vertexlit_and_unlit_generic_vs20.inc
@ -190,6 +190,27 @@ public:
 		m_bDONT_GAMMA_CONVERT_VERTEX_COLOR = true;
 #endif
 	}
+private:
+	int m_nTREESWAY;
+#ifdef _DEBUG
+	bool m_bTREESWAY;
+#endif
+public:
+	void SetTREESWAY( int i )
+	{
+		Assert( i >= 0 && i <= 2 );
+		m_nTREESWAY = i;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
+	void SetTREESWAY( bool i )
+	{
+		m_nTREESWAY = i ? 1 : 0;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
 public:
 	sdk_vertexlit_and_unlit_generic_vs20_Static_Index( )
 	{
@ -229,19 +250,23 @@ public:
 		m_bDONT_GAMMA_CONVERT_VERTEX_COLOR = false;
 #endif // _DEBUG
 		m_nDONT_GAMMA_CONVERT_VERTEX_COLOR = 0;
+#ifdef _DEBUG
+		m_bTREESWAY = false;
+#endif // _DEBUG
+		m_nTREESWAY = 0;
 	}
 	int GetIndex()
 	{
 		// Asserts to make sure that we aren't using any skipped combinations.
 		// Asserts to make sure that we are setting all of the combination vars.
 #ifdef _DEBUG
-		bool bAllStaticVarsDefined = m_bVERTEXCOLOR && m_bCUBEMAP && m_bHALFLAMBERT && m_bFLASHLIGHT && m_bSEAMLESS_BASE && m_bSEAMLESS_DETAIL && m_bSEPARATE_DETAIL_UVS && m_bUSE_STATIC_CONTROL_FLOW && m_bDONT_GAMMA_CONVERT_VERTEX_COLOR;
+		bool bAllStaticVarsDefined = m_bVERTEXCOLOR && m_bCUBEMAP && m_bHALFLAMBERT && m_bFLASHLIGHT && m_bSEAMLESS_BASE && m_bSEAMLESS_DETAIL && m_bSEPARATE_DETAIL_UVS && m_bUSE_STATIC_CONTROL_FLOW && m_bDONT_GAMMA_CONVERT_VERTEX_COLOR && m_bTREESWAY;
 		Assert( bAllStaticVarsDefined );
 #endif // _DEBUG
-		return ( 192 * m_nVERTEXCOLOR ) + ( 384 * m_nCUBEMAP ) + ( 768 * m_nHALFLAMBERT ) + ( 1536 * m_nFLASHLIGHT ) + ( 3072 * m_nSEAMLESS_BASE ) + ( 6144 * m_nSEAMLESS_DETAIL ) + ( 12288 * m_nSEPARATE_DETAIL_UVS ) + ( 24576 * m_nUSE_STATIC_CONTROL_FLOW ) + ( 49152 * m_nDONT_GAMMA_CONVERT_VERTEX_COLOR ) + 0;
+		return ( 192 * m_nVERTEXCOLOR ) + ( 384 * m_nCUBEMAP ) + ( 768 * m_nHALFLAMBERT ) + ( 1536 * m_nFLASHLIGHT ) + ( 3072 * m_nSEAMLESS_BASE ) + ( 6144 * m_nSEAMLESS_DETAIL ) + ( 12288 * m_nSEPARATE_DETAIL_UVS ) + ( 24576 * m_nUSE_STATIC_CONTROL_FLOW ) + ( 49152 * m_nDONT_GAMMA_CONVERT_VERTEX_COLOR ) + ( 98304 * m_nTREESWAY ) + 0;
 	}
 };
-#define shaderStaticTest_sdk_vertexlit_and_unlit_generic_vs20 vsh_forgot_to_set_static_VERTEXCOLOR + vsh_forgot_to_set_static_CUBEMAP + vsh_forgot_to_set_static_HALFLAMBERT + vsh_forgot_to_set_static_FLASHLIGHT + vsh_forgot_to_set_static_SEAMLESS_BASE + vsh_forgot_to_set_static_SEAMLESS_DETAIL + vsh_forgot_to_set_static_SEPARATE_DETAIL_UVS + vsh_forgot_to_set_static_USE_STATIC_CONTROL_FLOW + vsh_forgot_to_set_static_DONT_GAMMA_CONVERT_VERTEX_COLOR + 0
+#define shaderStaticTest_sdk_vertexlit_and_unlit_generic_vs20 vsh_forgot_to_set_static_VERTEXCOLOR + vsh_forgot_to_set_static_CUBEMAP + vsh_forgot_to_set_static_HALFLAMBERT + vsh_forgot_to_set_static_FLASHLIGHT + vsh_forgot_to_set_static_SEAMLESS_BASE + vsh_forgot_to_set_static_SEAMLESS_DETAIL + vsh_forgot_to_set_static_SEPARATE_DETAIL_UVS + vsh_forgot_to_set_static_USE_STATIC_CONTROL_FLOW + vsh_forgot_to_set_static_DONT_GAMMA_CONVERT_VERTEX_COLOR + vsh_forgot_to_set_static_TREESWAY + 0
 class sdk_vertexlit_and_unlit_generic_vs20_Dynamic_Index
 {
 private:
--- a/sp/src/materialsystem/stdshaders/fxctmp9/SDK_vertexlit_and_unlit_generic_vs30.inc
+++ b/sp/src/materialsystem/stdshaders/fxctmp9/SDK_vertexlit_and_unlit_generic_vs30.inc
@ -211,6 +211,27 @@ public:
 		m_bDONT_GAMMA_CONVERT_VERTEX_COLOR = true;
 #endif
 	}
+private:
+	int m_nTREESWAY;
+#ifdef _DEBUG
+	bool m_bTREESWAY;
+#endif
+public:
+	void SetTREESWAY( int i )
+	{
+		Assert( i >= 0 && i <= 2 );
+		m_nTREESWAY = i;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
+	void SetTREESWAY( bool i )
+	{
+		m_nTREESWAY = i ? 1 : 0;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
 public:
 	sdk_vertexlit_and_unlit_generic_vs30_Static_Index( )
 	{
@ -254,19 +275,23 @@ public:
 		m_bDONT_GAMMA_CONVERT_VERTEX_COLOR = false;
 #endif // _DEBUG
 		m_nDONT_GAMMA_CONVERT_VERTEX_COLOR = 0;
+#ifdef _DEBUG
+		m_bTREESWAY = false;
+#endif // _DEBUG
+		m_nTREESWAY = 0;
 	}
 	int GetIndex()
 	{
 		// Asserts to make sure that we aren't using any skipped combinations.
 		// Asserts to make sure that we are setting all of the combination vars.
 #ifdef _DEBUG
-		bool bAllStaticVarsDefined = m_bVERTEXCOLOR && m_bCUBEMAP && m_bHALFLAMBERT && m_bFLASHLIGHT && m_bSEAMLESS_BASE && m_bSEAMLESS_DETAIL && m_bSEPARATE_DETAIL_UVS && m_bDECAL && m_bSM30_VERTEXID && m_bDONT_GAMMA_CONVERT_VERTEX_COLOR;
+		bool bAllStaticVarsDefined = m_bVERTEXCOLOR && m_bCUBEMAP && m_bHALFLAMBERT && m_bFLASHLIGHT && m_bSEAMLESS_BASE && m_bSEAMLESS_DETAIL && m_bSEPARATE_DETAIL_UVS && m_bDECAL && m_bSM30_VERTEXID && m_bDONT_GAMMA_CONVERT_VERTEX_COLOR && m_bTREESWAY;
 		Assert( bAllStaticVarsDefined );
 #endif // _DEBUG
-		return ( 128 * m_nVERTEXCOLOR ) + ( 256 * m_nCUBEMAP ) + ( 512 * m_nHALFLAMBERT ) + ( 1024 * m_nFLASHLIGHT ) + ( 2048 * m_nSEAMLESS_BASE ) + ( 4096 * m_nSEAMLESS_DETAIL ) + ( 8192 * m_nSEPARATE_DETAIL_UVS ) + ( 16384 * m_nDECAL ) + ( 32768 * m_nSM30_VERTEXID ) + ( 65536 * m_nDONT_GAMMA_CONVERT_VERTEX_COLOR ) + 0;
+		return ( 128 * m_nVERTEXCOLOR ) + ( 256 * m_nCUBEMAP ) + ( 512 * m_nHALFLAMBERT ) + ( 1024 * m_nFLASHLIGHT ) + ( 2048 * m_nSEAMLESS_BASE ) + ( 4096 * m_nSEAMLESS_DETAIL ) + ( 8192 * m_nSEPARATE_DETAIL_UVS ) + ( 16384 * m_nDECAL ) + ( 32768 * m_nSM30_VERTEXID ) + ( 65536 * m_nDONT_GAMMA_CONVERT_VERTEX_COLOR ) + ( 131072 * m_nTREESWAY ) + 0;
 	}
 };
-#define shaderStaticTest_sdk_vertexlit_and_unlit_generic_vs30 vsh_forgot_to_set_static_VERTEXCOLOR + vsh_forgot_to_set_static_CUBEMAP + vsh_forgot_to_set_static_HALFLAMBERT + vsh_forgot_to_set_static_FLASHLIGHT + vsh_forgot_to_set_static_SEAMLESS_BASE + vsh_forgot_to_set_static_SEAMLESS_DETAIL + vsh_forgot_to_set_static_SEPARATE_DETAIL_UVS + vsh_forgot_to_set_static_DECAL + vsh_forgot_to_set_static_SM30_VERTEXID + vsh_forgot_to_set_static_DONT_GAMMA_CONVERT_VERTEX_COLOR + 0
+#define shaderStaticTest_sdk_vertexlit_and_unlit_generic_vs30 vsh_forgot_to_set_static_VERTEXCOLOR + vsh_forgot_to_set_static_CUBEMAP + vsh_forgot_to_set_static_HALFLAMBERT + vsh_forgot_to_set_static_FLASHLIGHT + vsh_forgot_to_set_static_SEAMLESS_BASE + vsh_forgot_to_set_static_SEAMLESS_DETAIL + vsh_forgot_to_set_static_SEPARATE_DETAIL_UVS + vsh_forgot_to_set_static_DECAL + vsh_forgot_to_set_static_SM30_VERTEXID + vsh_forgot_to_set_static_DONT_GAMMA_CONVERT_VERTEX_COLOR + vsh_forgot_to_set_static_TREESWAY + 0
 class sdk_vertexlit_and_unlit_generic_vs30_Dynamic_Index
 {
 private:
--- a/sp/src/materialsystem/stdshaders/fxctmp9_tmp/SDK_depthwrite_vs20.inc
+++ b/sp/src/materialsystem/stdshaders/fxctmp9_tmp/SDK_depthwrite_vs20.inc
@ -43,6 +43,27 @@ public:
 		m_bCOLOR_DEPTH = true;
 #endif
 	}
+private:
+	int m_nTREESWAY;
+#ifdef _DEBUG
+	bool m_bTREESWAY;
+#endif
+public:
+	void SetTREESWAY( int i )
+	{
+		Assert( i >= 0 && i <= 2 );
+		m_nTREESWAY = i;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
+	void SetTREESWAY( bool i )
+	{
+		m_nTREESWAY = i ? 1 : 0;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
 public:
 	sdk_depthwrite_vs20_Static_Index( )
 	{
@ -54,19 +75,23 @@ public:
 		m_bCOLOR_DEPTH = false;
 #endif // _DEBUG
 		m_nCOLOR_DEPTH = 0;
+#ifdef _DEBUG
+		m_bTREESWAY = false;
+#endif // _DEBUG
+		m_nTREESWAY = 0;
 	}
 	int GetIndex()
 	{
 		// Asserts to make sure that we aren't using any skipped combinations.
 		// Asserts to make sure that we are setting all of the combination vars.
 #ifdef _DEBUG
-		bool bAllStaticVarsDefined = m_bONLY_PROJECT_POSITION && m_bCOLOR_DEPTH;
+		bool bAllStaticVarsDefined = m_bONLY_PROJECT_POSITION && m_bCOLOR_DEPTH && m_bTREESWAY;
 		Assert( bAllStaticVarsDefined );
 #endif // _DEBUG
-		return ( 4 * m_nONLY_PROJECT_POSITION ) + ( 4 * m_nCOLOR_DEPTH ) + 0;
+		return ( 4 * m_nONLY_PROJECT_POSITION ) + ( 4 * m_nCOLOR_DEPTH ) + ( 8 * m_nTREESWAY ) + 0;
 	}
 };
-#define shaderStaticTest_sdk_depthwrite_vs20 vsh_forgot_to_set_static_ONLY_PROJECT_POSITION + vsh_forgot_to_set_static_COLOR_DEPTH + 0
+#define shaderStaticTest_sdk_depthwrite_vs20 vsh_forgot_to_set_static_ONLY_PROJECT_POSITION + vsh_forgot_to_set_static_COLOR_DEPTH + vsh_forgot_to_set_static_TREESWAY + 0
 class sdk_depthwrite_vs20_Dynamic_Index
 {
 private:
--- a/sp/src/materialsystem/stdshaders/fxctmp9_tmp/SDK_depthwrite_vs30.inc
+++ b/sp/src/materialsystem/stdshaders/fxctmp9_tmp/SDK_depthwrite_vs30.inc
@ -43,6 +43,27 @@ public:
 		m_bCOLOR_DEPTH = true;
 #endif
 	}
+private:
+	int m_nTREESWAY;
+#ifdef _DEBUG
+	bool m_bTREESWAY;
+#endif
+public:
+	void SetTREESWAY( int i )
+	{
+		Assert( i >= 0 && i <= 2 );
+		m_nTREESWAY = i;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
+	void SetTREESWAY( bool i )
+	{
+		m_nTREESWAY = i ? 1 : 0;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
 public:
 	sdk_depthwrite_vs30_Static_Index( )
 	{
@ -54,19 +75,23 @@ public:
 		m_bCOLOR_DEPTH = false;
 #endif // _DEBUG
 		m_nCOLOR_DEPTH = 0;
+#ifdef _DEBUG
+		m_bTREESWAY = false;
+#endif // _DEBUG
+		m_nTREESWAY = 0;
 	}
 	int GetIndex()
 	{
 		// Asserts to make sure that we aren't using any skipped combinations.
 		// Asserts to make sure that we are setting all of the combination vars.
 #ifdef _DEBUG
-		bool bAllStaticVarsDefined = m_bONLY_PROJECT_POSITION && m_bCOLOR_DEPTH;
+		bool bAllStaticVarsDefined = m_bONLY_PROJECT_POSITION && m_bCOLOR_DEPTH && m_bTREESWAY;
 		Assert( bAllStaticVarsDefined );
 #endif // _DEBUG
-		return ( 8 * m_nONLY_PROJECT_POSITION ) + ( 8 * m_nCOLOR_DEPTH ) + 0;
+		return ( 8 * m_nONLY_PROJECT_POSITION ) + ( 8 * m_nCOLOR_DEPTH ) + ( 16 * m_nTREESWAY ) + 0;
 	}
 };
-#define shaderStaticTest_sdk_depthwrite_vs30 vsh_forgot_to_set_static_ONLY_PROJECT_POSITION + vsh_forgot_to_set_static_COLOR_DEPTH + 0
+#define shaderStaticTest_sdk_depthwrite_vs30 vsh_forgot_to_set_static_ONLY_PROJECT_POSITION + vsh_forgot_to_set_static_COLOR_DEPTH + vsh_forgot_to_set_static_TREESWAY + 0
 class sdk_depthwrite_vs30_Dynamic_Index
 {
 private:
--- a/sp/src/materialsystem/stdshaders/fxctmp9_tmp/SDK_vertexlit_and_unlit_generic_vs20.inc
+++ b/sp/src/materialsystem/stdshaders/fxctmp9_tmp/SDK_vertexlit_and_unlit_generic_vs20.inc
@ -190,6 +190,27 @@ public:
 		m_bDONT_GAMMA_CONVERT_VERTEX_COLOR = true;
 #endif
 	}
+private:
+	int m_nTREESWAY;
+#ifdef _DEBUG
+	bool m_bTREESWAY;
+#endif
+public:
+	void SetTREESWAY( int i )
+	{
+		Assert( i >= 0 && i <= 2 );
+		m_nTREESWAY = i;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
+	void SetTREESWAY( bool i )
+	{
+		m_nTREESWAY = i ? 1 : 0;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
 public:
 	sdk_vertexlit_and_unlit_generic_vs20_Static_Index( )
 	{
@ -229,19 +250,23 @@ public:
 		m_bDONT_GAMMA_CONVERT_VERTEX_COLOR = false;
 #endif // _DEBUG
 		m_nDONT_GAMMA_CONVERT_VERTEX_COLOR = 0;
+#ifdef _DEBUG
+		m_bTREESWAY = false;
+#endif // _DEBUG
+		m_nTREESWAY = 0;
 	}
 	int GetIndex()
 	{
 		// Asserts to make sure that we aren't using any skipped combinations.
 		// Asserts to make sure that we are setting all of the combination vars.
 #ifdef _DEBUG
-		bool bAllStaticVarsDefined = m_bVERTEXCOLOR && m_bCUBEMAP && m_bHALFLAMBERT && m_bFLASHLIGHT && m_bSEAMLESS_BASE && m_bSEAMLESS_DETAIL && m_bSEPARATE_DETAIL_UVS && m_bUSE_STATIC_CONTROL_FLOW && m_bDONT_GAMMA_CONVERT_VERTEX_COLOR;
+		bool bAllStaticVarsDefined = m_bVERTEXCOLOR && m_bCUBEMAP && m_bHALFLAMBERT && m_bFLASHLIGHT && m_bSEAMLESS_BASE && m_bSEAMLESS_DETAIL && m_bSEPARATE_DETAIL_UVS && m_bUSE_STATIC_CONTROL_FLOW && m_bDONT_GAMMA_CONVERT_VERTEX_COLOR && m_bTREESWAY;
 		Assert( bAllStaticVarsDefined );
 #endif // _DEBUG
-		return ( 192 * m_nVERTEXCOLOR ) + ( 384 * m_nCUBEMAP ) + ( 768 * m_nHALFLAMBERT ) + ( 1536 * m_nFLASHLIGHT ) + ( 3072 * m_nSEAMLESS_BASE ) + ( 6144 * m_nSEAMLESS_DETAIL ) + ( 12288 * m_nSEPARATE_DETAIL_UVS ) + ( 24576 * m_nUSE_STATIC_CONTROL_FLOW ) + ( 49152 * m_nDONT_GAMMA_CONVERT_VERTEX_COLOR ) + 0;
+		return ( 192 * m_nVERTEXCOLOR ) + ( 384 * m_nCUBEMAP ) + ( 768 * m_nHALFLAMBERT ) + ( 1536 * m_nFLASHLIGHT ) + ( 3072 * m_nSEAMLESS_BASE ) + ( 6144 * m_nSEAMLESS_DETAIL ) + ( 12288 * m_nSEPARATE_DETAIL_UVS ) + ( 24576 * m_nUSE_STATIC_CONTROL_FLOW ) + ( 49152 * m_nDONT_GAMMA_CONVERT_VERTEX_COLOR ) + ( 98304 * m_nTREESWAY ) + 0;
 	}
 };
-#define shaderStaticTest_sdk_vertexlit_and_unlit_generic_vs20 vsh_forgot_to_set_static_VERTEXCOLOR + vsh_forgot_to_set_static_CUBEMAP + vsh_forgot_to_set_static_HALFLAMBERT + vsh_forgot_to_set_static_FLASHLIGHT + vsh_forgot_to_set_static_SEAMLESS_BASE + vsh_forgot_to_set_static_SEAMLESS_DETAIL + vsh_forgot_to_set_static_SEPARATE_DETAIL_UVS + vsh_forgot_to_set_static_USE_STATIC_CONTROL_FLOW + vsh_forgot_to_set_static_DONT_GAMMA_CONVERT_VERTEX_COLOR + 0
+#define shaderStaticTest_sdk_vertexlit_and_unlit_generic_vs20 vsh_forgot_to_set_static_VERTEXCOLOR + vsh_forgot_to_set_static_CUBEMAP + vsh_forgot_to_set_static_HALFLAMBERT + vsh_forgot_to_set_static_FLASHLIGHT + vsh_forgot_to_set_static_SEAMLESS_BASE + vsh_forgot_to_set_static_SEAMLESS_DETAIL + vsh_forgot_to_set_static_SEPARATE_DETAIL_UVS + vsh_forgot_to_set_static_USE_STATIC_CONTROL_FLOW + vsh_forgot_to_set_static_DONT_GAMMA_CONVERT_VERTEX_COLOR + vsh_forgot_to_set_static_TREESWAY + 0
 class sdk_vertexlit_and_unlit_generic_vs20_Dynamic_Index
 {
 private:
--- a/sp/src/materialsystem/stdshaders/fxctmp9_tmp/SDK_vertexlit_and_unlit_generic_vs30.inc
+++ b/sp/src/materialsystem/stdshaders/fxctmp9_tmp/SDK_vertexlit_and_unlit_generic_vs30.inc
@ -211,6 +211,27 @@ public:
 		m_bDONT_GAMMA_CONVERT_VERTEX_COLOR = true;
 #endif
 	}
+private:
+	int m_nTREESWAY;
+#ifdef _DEBUG
+	bool m_bTREESWAY;
+#endif
+public:
+	void SetTREESWAY( int i )
+	{
+		Assert( i >= 0 && i <= 2 );
+		m_nTREESWAY = i;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
+	void SetTREESWAY( bool i )
+	{
+		m_nTREESWAY = i ? 1 : 0;
+#ifdef _DEBUG
+		m_bTREESWAY = true;
+#endif
+	}
 public:
 	sdk_vertexlit_and_unlit_generic_vs30_Static_Index( )
 	{
@ -254,19 +275,23 @@ public:
 		m_bDONT_GAMMA_CONVERT_VERTEX_COLOR = false;
 #endif // _DEBUG
 		m_nDONT_GAMMA_CONVERT_VERTEX_COLOR = 0;
+#ifdef _DEBUG
+		m_bTREESWAY = false;
+#endif // _DEBUG
+		m_nTREESWAY = 0;
 	}
 	int GetIndex()
 	{
 		// Asserts to make sure that we aren't using any skipped combinations.
 		// Asserts to make sure that we are setting all of the combination vars.
 #ifdef _DEBUG
-		bool bAllStaticVarsDefined = m_bVERTEXCOLOR && m_bCUBEMAP && m_bHALFLAMBERT && m_bFLASHLIGHT && m_bSEAMLESS_BASE && m_bSEAMLESS_DETAIL && m_bSEPARATE_DETAIL_UVS && m_bDECAL && m_bSM30_VERTEXID && m_bDONT_GAMMA_CONVERT_VERTEX_COLOR;
+		bool bAllStaticVarsDefined = m_bVERTEXCOLOR && m_bCUBEMAP && m_bHALFLAMBERT && m_bFLASHLIGHT && m_bSEAMLESS_BASE && m_bSEAMLESS_DETAIL && m_bSEPARATE_DETAIL_UVS && m_bDECAL && m_bSM30_VERTEXID && m_bDONT_GAMMA_CONVERT_VERTEX_COLOR && m_bTREESWAY;
 		Assert( bAllStaticVarsDefined );
 #endif // _DEBUG
-		return ( 128 * m_nVERTEXCOLOR ) + ( 256 * m_nCUBEMAP ) + ( 512 * m_nHALFLAMBERT ) + ( 1024 * m_nFLASHLIGHT ) + ( 2048 * m_nSEAMLESS_BASE ) + ( 4096 * m_nSEAMLESS_DETAIL ) + ( 8192 * m_nSEPARATE_DETAIL_UVS ) + ( 16384 * m_nDECAL ) + ( 32768 * m_nSM30_VERTEXID ) + ( 65536 * m_nDONT_GAMMA_CONVERT_VERTEX_COLOR ) + 0;
+		return ( 128 * m_nVERTEXCOLOR ) + ( 256 * m_nCUBEMAP ) + ( 512 * m_nHALFLAMBERT ) + ( 1024 * m_nFLASHLIGHT ) + ( 2048 * m_nSEAMLESS_BASE ) + ( 4096 * m_nSEAMLESS_DETAIL ) + ( 8192 * m_nSEPARATE_DETAIL_UVS ) + ( 16384 * m_nDECAL ) + ( 32768 * m_nSM30_VERTEXID ) + ( 65536 * m_nDONT_GAMMA_CONVERT_VERTEX_COLOR ) + ( 131072 * m_nTREESWAY ) + 0;
 	}
 };
-#define shaderStaticTest_sdk_vertexlit_and_unlit_generic_vs30 vsh_forgot_to_set_static_VERTEXCOLOR + vsh_forgot_to_set_static_CUBEMAP + vsh_forgot_to_set_static_HALFLAMBERT + vsh_forgot_to_set_static_FLASHLIGHT + vsh_forgot_to_set_static_SEAMLESS_BASE + vsh_forgot_to_set_static_SEAMLESS_DETAIL + vsh_forgot_to_set_static_SEPARATE_DETAIL_UVS + vsh_forgot_to_set_static_DECAL + vsh_forgot_to_set_static_SM30_VERTEXID + vsh_forgot_to_set_static_DONT_GAMMA_CONVERT_VERTEX_COLOR + 0
+#define shaderStaticTest_sdk_vertexlit_and_unlit_generic_vs30 vsh_forgot_to_set_static_VERTEXCOLOR + vsh_forgot_to_set_static_CUBEMAP + vsh_forgot_to_set_static_HALFLAMBERT + vsh_forgot_to_set_static_FLASHLIGHT + vsh_forgot_to_set_static_SEAMLESS_BASE + vsh_forgot_to_set_static_SEAMLESS_DETAIL + vsh_forgot_to_set_static_SEPARATE_DETAIL_UVS + vsh_forgot_to_set_static_DECAL + vsh_forgot_to_set_static_SM30_VERTEXID + vsh_forgot_to_set_static_DONT_GAMMA_CONVERT_VERTEX_COLOR + vsh_forgot_to_set_static_TREESWAY + 0
 class sdk_vertexlit_and_unlit_generic_vs30_Dynamic_Index
 {
 private:
--- a/sp/src/materialsystem/stdshaders/tree_sway.h
+++ b/sp/src/materialsystem/stdshaders/tree_sway.h
@ -0,0 +1,89 @@
+//============ Copyright (c) Valve Corporation, All rights reserved. ============
+
+#ifndef _TREE_SWAY_H
+#define _TREE_SWAY_H
+
+// Tree sway vertex animation function. Requires a number of global variables to be defined. See vertexlit_and_unlit_generic_vs20.fxc or depthwrite_vs20.fxc for details.
+
+// Tree sway mode 2:
+// Hacks to use tree sway code on rectangular sheets of plastic/tarp attached at the four corners. 
+// Inverts the sway scale radius to be 1 at (0,0,0) in model space and fall off radially towards the edges of the model.
+// The model is expected to be build lying in the xy plane in model space, with its center at the origin.
+// Treeswaystrength should be 0 in the vmt.
+
+#if ( TREESWAY )
+	float3 ComputeTreeSway( float3 vPositionOS, float flTime )
+	{
+		static const float g_flWindOffsetScale = 19;
+
+		float flWindIntensity = length( g_vWindDir );
+
+		// Model root position is the translation component of the model to world matrix
+		float3 vModelRoot = float3( cModel[0][3].x, cModel[0][3].y, cModel[0][3].z );
+
+		// Transform the wind direction into model space
+		float3 vWindDirAndIntensityOS = mul( ( float3x3 )cModel[0], float3( g_vWindDir, 0 ) );
+
+		float flSwayScaleHeight = saturate( ( vPositionOS.z - g_flHeight * g_flStartHeight ) /
+											( ( 1.0 - g_flStartHeight ) * g_flHeight ) );
+
+		float flSwayScaleRadius = saturate( length( ( vPositionOS.xy ) - g_flRadius * g_flStartRadius ) /
+											( ( 1.0 - g_flStartRadius ) * g_flRadius ) );
+
+		// Used to turn off branch sway and scrumble below the minimum sway height
+		float flHeightThreshold = step( 0, vPositionOS.z - g_flHeight * g_flStartHeight );
+
+		#if ( TREESWAY == 2 )
+		{
+			// Works better for hanging vines
+			flHeightThreshold = step( vPositionOS.z - g_flHeight * g_flStartHeight, 0 );
+		}
+		#endif
+
+		// Scale branch motion based on how orthogonal they are
+		// This is what I want to compute:
+		// float flOrthoBranchScale = 1.0 - abs( dot( normalize( vWindDirAndIntensityOS.xyz ), float3( normalize( vPositionOS.xy ), 0 ) ) );
+		// Some NV hardware (7800) will do bad things when normalizing a 0 length vector. Instead, I'm doing the dot product unnormalized
+		// and divide by the length of the vectors, making sure to avoid divide by 0.
+		float flOrthoBranchScale = abs( dot( vWindDirAndIntensityOS.xyz, float3( vPositionOS.xy, 0 ) ) );
+		flOrthoBranchScale = 1.0 - saturate( flOrthoBranchScale / ( max( length( vWindDirAndIntensityOS.xyz ), 0.0001 ) * max( length( vPositionOS.xy ), 0.0001 ) ) );
+
+		float flSwayScaleTrunk = g_flSwayIntensity * pow( flSwayScaleHeight, g_flSwayFalloffCurve );
+		float flSwayScaleBranches = g_flSwayIntensity * flOrthoBranchScale * flSwayScaleRadius * flHeightThreshold;
+		#if ( TREESWAY == 2 )
+		{
+			// Looks stupid on vines
+			flSwayScaleBranches = 0.0;
+		}
+		#endif
+		float flWindTimeOffset = dot( vModelRoot.xyz, float3( 1, 1, 1 ) ) * g_flWindOffsetScale;
+		float flSlowSwayTime = ( flTime + flWindTimeOffset ) * g_flSwaySpeed;
+
+		float3 vSwayPosOS = normalize( vPositionOS.xyz );
+		float3 vScrumblePosOS = vSwayPosOS * g_flScrumbleWaveCount;
+		float flScrumbleScale = pow( flSwayScaleRadius, g_flScrumbleFalloffCurve ) * g_flScrumbleIntensity * flHeightThreshold;
+
+		float3 vPositionOffset = float3( 0, 0, 0 );
+
+		// lerp between slow and fast sines based on wind speed
+		float flSpeedLerp = smoothstep( g_flWindSpeedLerpStart, g_flWindSpeedLerpEnd, flWindIntensity );
+		float4 vABunchOfSines = sin( float4( 1.0, 2.31, g_flFastSwaySpeedScale, 2.14 * g_flFastSwaySpeedScale ) * flSlowSwayTime.xxxx );
+		vABunchOfSines.xy = lerp( vABunchOfSines.xy, vABunchOfSines.zw, flSpeedLerp );
+
+		vPositionOffset.xyz = vWindDirAndIntensityOS *  flSwayScaleTrunk * ( vABunchOfSines.x + 0.1 );
+		vPositionOffset.xyz += vWindDirAndIntensityOS *  flSwayScaleBranches * ( vABunchOfSines.y + 0.4 );
+
+		float3 vScrumbleScale = flScrumbleScale.xxx;
+		#if ( TREESWAY == 2 )
+		{
+			vScrumbleScale *= float3( 0.5, 0.5, 1.0 );
+		}
+		#endif
+
+		vPositionOffset.xyz += flWindIntensity * ( vScrumbleScale.xyz * sin( g_flScrumbleSpeed * flTime.xxx + vScrumblePosOS.yzx + flWindTimeOffset.xxx ) );
+
+		return vPositionOS.xyz + vPositionOffset.xyz;
+	}
+#endif
+
+#endif // _TREE_SWAY_H
--- a/sp/src/materialsystem/stdshaders/unlitgeneric_dx9.cpp
+++ b/sp/src/materialsystem/stdshaders/unlitgeneric_dx9.cpp
@ -78,6 +78,25 @@ BEGIN_VS_SHADER( SDK_UnlitGeneric, "Help for SDK_UnlitGeneric" )
 		SHADER_PARAM( DEPTHBLENDSCALE, SHADER_PARAM_TYPE_FLOAT, "50.0", "Amplify or reduce DEPTHBLEND fading. Lower values make harder edges." )
 		SHADER_PARAM( RECEIVEFLASHLIGHT, SHADER_PARAM_TYPE_INTEGER, "0", "Forces this material to receive flashlights." )

+		// vertexlitgeneric tree sway animation control (on unlitgeneric)
+		SHADER_PARAM( TREESWAY, SHADER_PARAM_TYPE_INTEGER, "0", "" )
+		SHADER_PARAM( TREESWAYHEIGHT, SHADER_PARAM_TYPE_FLOAT, "1000", "" )
+		SHADER_PARAM( TREESWAYSTARTHEIGHT, SHADER_PARAM_TYPE_FLOAT, "0.2", "" )
+		SHADER_PARAM( TREESWAYRADIUS, SHADER_PARAM_TYPE_FLOAT, "300", "" )
+		SHADER_PARAM( TREESWAYSTARTRADIUS, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYSPEED, SHADER_PARAM_TYPE_FLOAT, "1", "" )
+		SHADER_PARAM( TREESWAYSPEEDHIGHWINDMULTIPLIER, SHADER_PARAM_TYPE_FLOAT, "2", "" )
+		SHADER_PARAM( TREESWAYSTRENGTH, SHADER_PARAM_TYPE_FLOAT, "10", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLESPEED, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLESTRENGTH, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLEFREQUENCY, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYFALLOFFEXP, SHADER_PARAM_TYPE_FLOAT, "1.5", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLEFALLOFFEXP, SHADER_PARAM_TYPE_FLOAT, "1.0", "" )
+		SHADER_PARAM( TREESWAYSPEEDLERPSTART, SHADER_PARAM_TYPE_FLOAT, "3", "" )
+		SHADER_PARAM( TREESWAYSPEEDLERPEND, SHADER_PARAM_TYPE_FLOAT, "6", "" )
+		SHADER_PARAM( TREESWAYSTATIC, SHADER_PARAM_TYPE_BOOL, "0", "" )
+		SHADER_PARAM( TREESWAYSTATICVALUES, SHADER_PARAM_TYPE_VEC2, "[0.5 0.5]", "" )
+
 	END_SHADER_PARAMS

 	void SetupVars( VertexLitGeneric_DX9_Vars_t& info )
@ -157,6 +176,24 @@ BEGIN_VS_SHADER( SDK_UnlitGeneric, "Help for SDK_UnlitGeneric" )
 		info.m_nDepthBlend = DEPTHBLEND;
 		info.m_nDepthBlendScale = DEPTHBLENDSCALE;
 		info.m_nReceiveFlashlight = RECEIVEFLASHLIGHT;
+
+		info.m_nTreeSway = TREESWAY;
+		info.m_nTreeSwayHeight = TREESWAYHEIGHT;
+		info.m_nTreeSwayStartHeight = TREESWAYSTARTHEIGHT;
+		info.m_nTreeSwayRadius = TREESWAYRADIUS;
+		info.m_nTreeSwayStartRadius = TREESWAYSTARTRADIUS;
+		info.m_nTreeSwaySpeed = TREESWAYSPEED;
+		info.m_nTreeSwaySpeedHighWindMultiplier = TREESWAYSPEEDHIGHWINDMULTIPLIER;
+		info.m_nTreeSwayStrength = TREESWAYSTRENGTH;
+		info.m_nTreeSwayScrumbleSpeed = TREESWAYSCRUMBLESPEED;
+		info.m_nTreeSwayScrumbleStrength = TREESWAYSCRUMBLESTRENGTH;
+		info.m_nTreeSwayScrumbleFrequency = TREESWAYSCRUMBLEFREQUENCY;
+		info.m_nTreeSwayFalloffExp = TREESWAYFALLOFFEXP;
+		info.m_nTreeSwayScrumbleFalloffExp = TREESWAYSCRUMBLEFALLOFFEXP;
+		info.m_nTreeSwaySpeedLerpStart = TREESWAYSPEEDLERPSTART;
+		info.m_nTreeSwaySpeedLerpEnd = TREESWAYSPEEDLERPEND;
+		info.m_nTreeSwayStatic = TREESWAYSTATIC;
+		info.m_nTreeSwayStaticValues = TREESWAYSTATICVALUES;
 	}

 	SHADER_INIT_PARAMS()
--- a/sp/src/materialsystem/stdshaders/vertexlitgeneric_dx9.cpp
+++ b/sp/src/materialsystem/stdshaders/vertexlitgeneric_dx9.cpp
@ -143,6 +143,25 @@ BEGIN_VS_SHADER( SDK_VertexLitGeneric, "Help for SDK_VertexLitGeneric" )
 #ifdef MAPBASE
 		SHADER_PARAM( PHONGDISABLEHALFLAMBERT, SHADER_PARAM_TYPE_BOOL, "0", "Disable half lambert for phong" )
 #endif
+
+		// vertexlitgeneric tree sway animation control
+		SHADER_PARAM( TREESWAY, SHADER_PARAM_TYPE_INTEGER, "0", "" )
+		SHADER_PARAM( TREESWAYHEIGHT, SHADER_PARAM_TYPE_FLOAT, "1000", "" )
+		SHADER_PARAM( TREESWAYSTARTHEIGHT, SHADER_PARAM_TYPE_FLOAT, "0.2", "" )
+		SHADER_PARAM( TREESWAYRADIUS, SHADER_PARAM_TYPE_FLOAT, "300", "" )
+		SHADER_PARAM( TREESWAYSTARTRADIUS, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYSPEED, SHADER_PARAM_TYPE_FLOAT, "1", "" )
+		SHADER_PARAM( TREESWAYSPEEDHIGHWINDMULTIPLIER, SHADER_PARAM_TYPE_FLOAT, "2", "" )
+		SHADER_PARAM( TREESWAYSTRENGTH, SHADER_PARAM_TYPE_FLOAT, "10", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLESPEED, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLESTRENGTH, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLEFREQUENCY, SHADER_PARAM_TYPE_FLOAT, "0.1", "" )
+		SHADER_PARAM( TREESWAYFALLOFFEXP, SHADER_PARAM_TYPE_FLOAT, "1.5", "" )
+		SHADER_PARAM( TREESWAYSCRUMBLEFALLOFFEXP, SHADER_PARAM_TYPE_FLOAT, "1.0", "" )
+		SHADER_PARAM( TREESWAYSPEEDLERPSTART, SHADER_PARAM_TYPE_FLOAT, "3", "" )
+		SHADER_PARAM( TREESWAYSPEEDLERPEND, SHADER_PARAM_TYPE_FLOAT, "6", "" )
+		SHADER_PARAM( TREESWAYSTATIC, SHADER_PARAM_TYPE_BOOL, "0", "" )
+		SHADER_PARAM( TREESWAYSTATICVALUES, SHADER_PARAM_TYPE_VEC2, "[0.5 0.5]", "" )
 	END_SHADER_PARAMS

 	void SetupVars( VertexLitGeneric_DX9_Vars_t& info )
@ -222,6 +241,24 @@ BEGIN_VS_SHADER( SDK_VertexLitGeneric, "Help for SDK_VertexLitGeneric" )
 #ifdef MAPBASE
 		info.m_nPhongDisableHalfLambert = PHONGDISABLEHALFLAMBERT;
 #endif
+
+		info.m_nTreeSway = TREESWAY;
+		info.m_nTreeSwayHeight = TREESWAYHEIGHT;
+		info.m_nTreeSwayStartHeight = TREESWAYSTARTHEIGHT;
+		info.m_nTreeSwayRadius = TREESWAYRADIUS;
+		info.m_nTreeSwayStartRadius = TREESWAYSTARTRADIUS;
+		info.m_nTreeSwaySpeed = TREESWAYSPEED;
+		info.m_nTreeSwaySpeedHighWindMultiplier = TREESWAYSPEEDHIGHWINDMULTIPLIER;
+		info.m_nTreeSwayStrength = TREESWAYSTRENGTH;
+		info.m_nTreeSwayScrumbleSpeed = TREESWAYSCRUMBLESPEED;
+		info.m_nTreeSwayScrumbleStrength = TREESWAYSCRUMBLESTRENGTH;
+		info.m_nTreeSwayScrumbleFrequency = TREESWAYSCRUMBLEFREQUENCY;
+		info.m_nTreeSwayFalloffExp = TREESWAYFALLOFFEXP;
+		info.m_nTreeSwayScrumbleFalloffExp = TREESWAYSCRUMBLEFALLOFFEXP;
+		info.m_nTreeSwaySpeedLerpStart = TREESWAYSPEEDLERPSTART;
+		info.m_nTreeSwaySpeedLerpEnd = TREESWAYSPEEDLERPEND;
+		info.m_nTreeSwayStatic = TREESWAYSTATIC;
+		info.m_nTreeSwayStaticValues = TREESWAYSTATICVALUES;
 	}

 	// Cloak Pass
--- a/sp/src/materialsystem/stdshaders/vertexlitgeneric_dx9_helper.cpp
+++ b/sp/src/materialsystem/stdshaders/vertexlitgeneric_dx9_helper.cpp
@ -223,6 +223,22 @@ void InitParamsVertexLitGeneric_DX9( CBaseVSShader *pShader, IMaterialVar** para

 	InitIntParam( info.m_nDepthBlend, params, 0 );
 	InitFloatParam( info.m_nDepthBlendScale, params, 50.0f );
+	
+	InitIntParam( info.m_nTreeSway, params, 0 );
+	InitFloatParam( info.m_nTreeSwayHeight, params, 1000.0f );
+	InitFloatParam( info.m_nTreeSwayStartHeight, params, 0.1f );
+	InitFloatParam( info.m_nTreeSwayRadius, params, 300.0f );
+	InitFloatParam( info.m_nTreeSwayStartRadius, params, 0.2f );
+	InitFloatParam( info.m_nTreeSwaySpeed, params, 1.0f );
+	InitFloatParam( info.m_nTreeSwaySpeedHighWindMultiplier, params, 2.0f );
+	InitFloatParam( info.m_nTreeSwayStrength, params, 10.0f );
+	InitFloatParam( info.m_nTreeSwayScrumbleSpeed, params, 5.0f );
+	InitFloatParam( info.m_nTreeSwayScrumbleStrength, params, 10.0f );
+	InitFloatParam( info.m_nTreeSwayScrumbleFrequency, params, 12.0f );
+	InitFloatParam( info.m_nTreeSwayFalloffExp, params, 1.5f );
+	InitFloatParam( info.m_nTreeSwayScrumbleFalloffExp, params, 1.0f );
+	InitFloatParam( info.m_nTreeSwaySpeedLerpStart, params, 3.0f );
+	InitFloatParam( info.m_nTreeSwaySpeedLerpEnd, params, 6.0f );
 }


@ -391,6 +407,8 @@ static void DrawVertexLitGeneric_DX9_Internal( CBaseVSShader *pShader, IMaterial
 		bFlashlightNoLambert = true;
 	}

+	int nTreeSwayMode = clamp( GetIntParam( info.m_nTreeSway, params, 0 ), 0, 2 );
+	bool bTreeSway = nTreeSwayMode != 0;
 	bool bAmbientOnly = IsBoolSet( info.m_nAmbientOnly, params );

 	float fBlendFactor = GetFloatParam( info.m_nDetailTextureBlendFactor, params, 1.0 );
@ -429,14 +447,11 @@ static void DrawVertexLitGeneric_DX9_Internal( CBaseVSShader *pShader, IMaterial
 	
 	bool bHasVertexColor = bVertexLitGeneric ? false : IS_FLAG_SET( MATERIAL_VAR_VERTEXCOLOR );
 	bool bHasVertexAlpha = bVertexLitGeneric ? false : IS_FLAG_SET( MATERIAL_VAR_VERTEXALPHA );
-/*^*/ // 	printf("\t\t[%d] bHasVertexColor\n",(int)bHasVertexColor);
-/*^*/ // 	printf("\t\t[%d] bHasVertexAlpha\n",(int)bHasVertexAlpha);

 	if ( pShader->IsSnapshotting() || (! pContextData ) || ( pContextData->m_bMaterialVarsChanged ) )
 	{
-/*^*/ // 	printf("\t\t[1] snapshotting=%d  pContextData=%08x  pContextData->m_bMaterialVarsChanged=%d \n",(int)pShader->IsSnapshotting(), (int)pContextData, pContextData ? (int)pContextData->m_bMaterialVarsChanged : -1 );
-		bool bSeamlessBase = IsBoolSet( info.m_nSeamlessBase, params );
-		bool bSeamlessDetail = IsBoolSet( info.m_nSeamlessDetail, params );
+		bool bSeamlessBase = IsBoolSet( info.m_nSeamlessBase, params ) && !bTreeSway;
+		bool bSeamlessDetail = IsBoolSet( info.m_nSeamlessDetail, params ) && !bTreeSway;
 		bool bDistanceAlpha = IsBoolSet( info.m_nDistanceAlpha, params );
 		bool bHasSelfIllum = (!bHasFlashlight || IsX360() ) && IS_FLAG_SET( MATERIAL_VAR_SELFILLUM );
 		bool bHasEnvmapMask = (!bHasFlashlight || IsX360() ) && info.m_nEnvmapMask != -1 && params[info.m_nEnvmapMask]->IsTexture();
@ -778,6 +793,7 @@ static void DrawVertexLitGeneric_DX9_Internal( CBaseVSShader *pShader, IMaterial
 					SET_STATIC_VERTEX_SHADER_COMBO( SEPARATE_DETAIL_UVS, IsBoolSet( info.m_nSeparateDetailUVs, params ) );
 					SET_STATIC_VERTEX_SHADER_COMBO( USE_STATIC_CONTROL_FLOW, bUseStaticControlFlow );
 					SET_STATIC_VERTEX_SHADER_COMBO( DONT_GAMMA_CONVERT_VERTEX_COLOR, (! bSRGBWrite ) && bHasVertexColor );
+					SET_STATIC_VERTEX_SHADER_COMBO( TREESWAY, bTreeSway ? nTreeSwayMode : 0 );
 					SET_STATIC_VERTEX_SHADER( sdk_vertexlit_and_unlit_generic_vs20 );

 					//if ( g_pHardwareConfig->SupportsPixelShaders_2_b() || g_pHardwareConfig->ShouldAlwaysUseShaderModel2bShaders() ) // Always send Gl this way
@ -852,6 +868,7 @@ static void DrawVertexLitGeneric_DX9_Internal( CBaseVSShader *pShader, IMaterial
 					SET_STATIC_VERTEX_SHADER_COMBO( DECAL, bIsDecal );
 					SET_STATIC_VERTEX_SHADER_COMBO( SM30_VERTEXID, bFastVertexTextures );
 					SET_STATIC_VERTEX_SHADER_COMBO( DONT_GAMMA_CONVERT_VERTEX_COLOR, bSRGBWrite ? 0 : 1 );
+					SET_STATIC_VERTEX_SHADER_COMBO( TREESWAY, bTreeSway ? nTreeSwayMode : 0 );
 					SET_STATIC_VERTEX_SHADER( sdk_vertexlit_and_unlit_generic_vs30 );

 					DECLARE_STATIC_PIXEL_SHADER( sdk_vertexlit_and_unlit_generic_ps30 );
@ -957,10 +974,13 @@ static void DrawVertexLitGeneric_DX9_Internal( CBaseVSShader *pShader, IMaterial
 			
 			if ( bHasDetailTexture )
 			{
-				if ( IS_PARAM_DEFINED( info.m_nDetailTextureTransform ) )
-					pContextData->m_SemiStaticCmdsOut.SetVertexShaderTextureScaledTransform( VERTEX_SHADER_SHADER_SPECIFIC_CONST_4, info.m_nDetailTextureTransform, info.m_nDetailScale );
-				else
-					pContextData->m_SemiStaticCmdsOut.SetVertexShaderTextureScaledTransform( VERTEX_SHADER_SHADER_SPECIFIC_CONST_4, info.m_nBaseTextureTransform, info.m_nDetailScale );
+				if ( !bTreeSway )
+				{
+					if ( IS_PARAM_DEFINED( info.m_nDetailTextureTransform ) )
+						pContextData->m_SemiStaticCmdsOut.SetVertexShaderTextureScaledTransform( VERTEX_SHADER_SHADER_SPECIFIC_CONST_4, info.m_nDetailTextureTransform, info.m_nDetailScale );
+					else
+						pContextData->m_SemiStaticCmdsOut.SetVertexShaderTextureScaledTransform( VERTEX_SHADER_SHADER_SPECIFIC_CONST_4, info.m_nBaseTextureTransform, info.m_nDetailScale );
+				}
 				//Assert( !bHasBump );
 				if ( info.m_nDetailTint  != -1 )
 					pContextData->m_SemiStaticCmdsOut.SetPixelShaderConstantGammaToLinear( 10, info.m_nDetailTint );
@ -1173,6 +1193,36 @@ static void DrawVertexLitGeneric_DX9_Internal( CBaseVSShader *pShader, IMaterial
 			}
 			pContextData->m_SemiStaticCmdsOut.SetPixelShaderConstant_W( 4, info.m_nSelfIllumTint, fBlendFactor );
 			pContextData->m_SemiStaticCmdsOut.SetAmbientCubeDynamicStateVertexShader();
+			
+			if ( bTreeSway )
+			{
+				float flParams[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
+
+				flParams[0] = GetFloatParam( info.m_nTreeSwaySpeedHighWindMultiplier, params, 2.0f );
+				flParams[1] = GetFloatParam( info.m_nTreeSwayScrumbleFalloffExp, params, 1.0f );
+				flParams[2] = GetFloatParam( info.m_nTreeSwayFalloffExp, params, 1.0f );
+				flParams[3] = GetFloatParam( info.m_nTreeSwayScrumbleSpeed, params, 3.0f );
+				pContextData->m_SemiStaticCmdsOut.SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_6, flParams );
+
+				flParams[0] = GetFloatParam( info.m_nTreeSwaySpeedLerpStart, params, 3.0f );
+				flParams[1] = GetFloatParam( info.m_nTreeSwaySpeedLerpEnd, params, 6.0f );
+				flParams[2] = 0;
+				flParams[3] = 0;
+				pContextData->m_SemiStaticCmdsOut.SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_4, flParams );
+
+				flParams[0] = GetFloatParam( info.m_nTreeSwayHeight, params, 1000.0f );
+				flParams[1] = GetFloatParam( info.m_nTreeSwayStartHeight, params, 0.1f );
+				flParams[2] = GetFloatParam( info.m_nTreeSwayRadius, params, 300.0f );
+				flParams[3] = GetFloatParam( info.m_nTreeSwayStartRadius, params, 0.2f );
+				pContextData->m_SemiStaticCmdsOut.SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_8, flParams );
+
+				flParams[0] = GetFloatParam( info.m_nTreeSwaySpeed, params, 1.0f );
+				flParams[1] = GetFloatParam( info.m_nTreeSwayStrength, params, 10.0f );
+				flParams[2] = GetFloatParam( info.m_nTreeSwayScrumbleFrequency, params, 12.0f );
+				flParams[3] = GetFloatParam( info.m_nTreeSwayScrumbleStrength, params, 10.0f );
+				pContextData->m_SemiStaticCmdsOut.SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_9, flParams );
+			}
+			
 			pContextData->m_SemiStaticCmdsOut.End();
 		}
 	}
@ -1435,6 +1485,25 @@ static void DrawVertexLitGeneric_DX9_Internal( CBaseVSShader *pShader, IMaterial

 			DynamicCmdsOut.SetPixelShaderConstant( 24, worldToTexture.Base(), 4 );
 		}
+		
+		if ( bTreeSway )
+		{
+			float fTempConst[4];
+			fTempConst[1] = pShaderAPI->CurrentTime();
+			if ( params[info.m_nTreeSwayStatic]->GetIntValue() == 0 )
+			{
+				const Vector& windDir = pShaderAPI->GetVectorRenderingParameter( VECTOR_RENDERPARM_WIND_DIRECTION );
+				fTempConst[2] = windDir.x;
+				fTempConst[3] = windDir.y;
+			}
+			else
+			{
+				// Use a static value instead of the env_wind value.
+				params[info.m_nTreeSwayStaticValues]->GetVecValue( fTempConst+2, 2 );
+			}
+			DynamicCmdsOut.SetVertexShaderConstant( VERTEX_SHADER_SHADER_SPECIFIC_CONST_7, fTempConst );
+		}
+		
 		DynamicCmdsOut.End();
 		pShaderAPI->ExecuteCommandBuffer( DynamicCmdsOut.Base() );
 	}
--- a/sp/src/materialsystem/stdshaders/vertexlitgeneric_dx9_helper.h
+++ b/sp/src/materialsystem/stdshaders/vertexlitgeneric_dx9_helper.h
@ -136,6 +136,23 @@ struct VertexLitGeneric_DX9_Vars_t
 	int m_nPhongDisableHalfLambert;
 #endif

+	int m_nTreeSway;
+	int m_nTreeSwayHeight;
+	int m_nTreeSwayStartHeight;
+	int m_nTreeSwayRadius;
+	int m_nTreeSwayStartRadius;
+	int m_nTreeSwaySpeed;
+	int m_nTreeSwaySpeedHighWindMultiplier;
+	int m_nTreeSwayStrength;
+	int m_nTreeSwayScrumbleSpeed;
+	int m_nTreeSwayScrumbleStrength;
+	int m_nTreeSwayScrumbleFrequency;
+	int m_nTreeSwayFalloffExp;
+	int m_nTreeSwayScrumbleFalloffExp;
+	int m_nTreeSwaySpeedLerpStart;
+	int m_nTreeSwaySpeedLerpEnd;
+	int m_nTreeSwayStatic;
+	int m_nTreeSwayStaticValues;
 };

 void InitParamsVertexLitGeneric_DX9( CBaseVSShader *pShader, IMaterialVar** params, const char *pMaterialName, bool bVertexLitGeneric, VertexLitGeneric_DX9_Vars_t &info );
--- a/sp/src/public/renderparm.h
+++ b/sp/src/public/renderparm.h
@ -28,6 +28,8 @@ enum RenderParamVector_t
 	VECTOR_RENDERPARM_HMDWARP_ASPECT,
 	INT_RENDERPARM_DISTORTION_TYPE,

+	VECTOR_RENDERPARM_WIND_DIRECTION,
+
 	MAX_VECTOR_RENDER_PARMS = 20
 };