Added Parallax Corrected Cubemaps

game/client/fx_impact.cpp

@@ -207,7 +207,7 @@ char const *GetImpactDecal( C_BaseEntity *pEntity, int iMaterial, int iDamageTyp
 //-----------------------------------------------------------------------------
 // Purpose: Perform custom effects based on the Decal index
 //-----------------------------------------------------------------------------
-static ConVar cl_new_impact_effects( "cl_new_impact_effects", "0" );
+static ConVar cl_new_impact_effects( "cl_new_impact_effects", "1" );
 
 struct ImpactEffect_t
 {

materialsystem/stdshaders/lightmappedgeneric_dx9.cpp

@@ -73,6 +73,11 @@ BEGIN_VS_SHADER( LightmappedGeneric,
 		SHADER_PARAM( OUTLINESTART1, SHADER_PARAM_TYPE_FLOAT, "0.0", "inner start value for outline")
 		SHADER_PARAM( OUTLINEEND0, SHADER_PARAM_TYPE_FLOAT, "0.0", "inner end value for outline")
 		SHADER_PARAM( OUTLINEEND1, SHADER_PARAM_TYPE_FLOAT, "0.0", "outer end value for outline")
+		// Parallax cubemaps
+		SHADER_PARAM( ENVMAPPARALLAXOBB1, SHADER_PARAM_TYPE_VEC4, "[1 0 0 0]", "The first line of the parallax correction OBB matrix" )
+		SHADER_PARAM( ENVMAPPARALLAXOBB2, SHADER_PARAM_TYPE_VEC4, "[0 1 0 0]", "The second line of the parallax correction OBB matrix" )
+		SHADER_PARAM( ENVMAPPARALLAXOBB3, SHADER_PARAM_TYPE_VEC4, "[0 0 1 0]", "The third line of the parallax correction OBB matrix" )
+		SHADER_PARAM( ENVMAPORIGIN, SHADER_PARAM_TYPE_VEC3, "[0 0 0]", "The world space position of the env_cubemap being corrected" )
 END_SHADER_PARAMS
 
 	void SetupVars( LightmappedGeneric_DX9_Vars_t& info )
@@ -134,6 +139,12 @@ END_SHADER_PARAMS
 		info.m_nOutlineStart1 = OUTLINESTART1;
 		info.m_nOutlineEnd0 = OUTLINEEND0;
 		info.m_nOutlineEnd1 = OUTLINEEND1;
+
+		// Parallax cubemaps
+		info.m_nEnvmapParallaxObb1 = ENVMAPPARALLAXOBB1;
+		info.m_nEnvmapParallaxObb2 = ENVMAPPARALLAXOBB2;
+		info.m_nEnvmapParallaxObb3 = ENVMAPPARALLAXOBB3;
+		info.m_nEnvmapOrigin = ENVMAPORIGIN;
 	}
 
 	SHADER_FALLBACK

materialsystem/stdshaders/lightmappedgeneric_dx9_helper.cpp

@@ -58,6 +58,13 @@ public:
 
 void InitParamsLightmappedGeneric_DX9( CBaseVSShader *pShader, IMaterialVar** params, const char *pMaterialName, LightmappedGeneric_DX9_Vars_t &info )
 {
+	// Parallax cubemaps
+	// Cubemap parallax correction requires all 4 lines (if the 2nd, 3rd, or 4th are undef, undef the first one (checking done on first var)
+	if ( !( params[info.m_nEnvmapParallaxObb2]->IsDefined() && params[info.m_nEnvmapParallaxObb3]->IsDefined() && params[info.m_nEnvmapOrigin]->IsDefined() ) )
+	{
+		params[info.m_nEnvmapParallaxObb1]->SetUndefined();
+	}
+
 	if ( g_pHardwareConfig->SupportsBorderColor() )
 	{
 		params[FLASHLIGHTTEXTURE]->SetStringValue( "effects/flashlight_border" );
@@ -313,6 +320,8 @@ void DrawLightmappedGeneric_DX9_Internal(CBaseVSShader *pShader, IMaterialVar**
 			(info.m_nBlendModulateTexture != -1) &&
 			(params[info.m_nBlendModulateTexture]->IsTexture() );
 		bool hasNormalMapAlphaEnvmapMask = IS_FLAG_SET( MATERIAL_VAR_NORMALMAPALPHAENVMAPMASK );
+		// Parallax cubemaps
+		bool hasParallaxCorrection = params[info.m_nEnvmapParallaxObb1]->IsDefined();
 
 		if ( hasFlashlight && !IsX360() )				
 		{
@@ -574,6 +583,8 @@ void DrawLightmappedGeneric_DX9_Internal(CBaseVSShader *pShader, IMaterialVar**
 #ifdef _X360
 					SET_STATIC_PIXEL_SHADER_COMBO( FLASHLIGHT, hasFlashlight);
 #endif
+					// Parallax cubemaps enabled for 2_0b and onwards
+					SET_STATIC_PIXEL_SHADER_COMBO( PARALLAXCORRECT, hasParallaxCorrection );
 					SET_STATIC_PIXEL_SHADER( lightmappedgeneric_ps20b );
 				}
 				else
@@ -601,6 +612,8 @@ void DrawLightmappedGeneric_DX9_Internal(CBaseVSShader *pShader, IMaterialVar**
 					SET_STATIC_PIXEL_SHADER_COMBO( DETAIL_BLEND_MODE, nDetailBlendMode );
 					SET_STATIC_PIXEL_SHADER_COMBO( NORMAL_DECODE_MODE, 0 );					// No normal compression with ps_2_0	(yikes!)
 					SET_STATIC_PIXEL_SHADER_COMBO( NORMALMASK_DECODE_MODE, 0 );				// No normal compression with ps_2_0
+					// Parallax cubemaps
+					SET_STATIC_PIXEL_SHADER_COMBO( PARALLAXCORRECT, 0 ); // No parallax cubemaps with ps_2_0 :(
 					SET_STATIC_PIXEL_SHADER( lightmappedgeneric_ps20 );
 				}
 				// HACK HACK HACK - enable alpha writes all the time so that we have them for
@@ -857,6 +870,28 @@ void DrawLightmappedGeneric_DX9_Internal(CBaseVSShader *pShader, IMaterialVar**
 				pContextData->m_SemiStaticCmdsOut.BindTexture( pShader, SHADER_SAMPLER3, info.m_nBlendModulateTexture, -1 );
 			}
 
+			// Parallax cubemaps
+			if ( hasParallaxCorrection )
+			{
+				pContextData->m_SemiStaticCmdsOut.SetPixelShaderConstant( 21, params[info.m_nEnvmapOrigin]->GetVecValue() );
+
+				float *vecs[3];
+				vecs[0] = const_cast<float *>( params[info.m_nEnvmapParallaxObb1]->GetVecValue() );
+				vecs[1] = const_cast<float *>( params[info.m_nEnvmapParallaxObb2]->GetVecValue() );
+				vecs[2] = const_cast<float *>( params[info.m_nEnvmapParallaxObb3]->GetVecValue() );
+				float matrix[4][4];
+				for ( int i = 0; i < 3; i++ )
+				{
+					for ( int j = 0; j < 4; j++ )
+					{
+						matrix[i][j] = vecs[i][j];
+					}
+				}
+				matrix[3][0] = matrix[3][1] = matrix[3][2] = 0;
+				matrix[3][3] = 1;
+				pContextData->m_SemiStaticCmdsOut.SetPixelShaderConstant( 22, &matrix[0][0], 4 );
+			}
+
 			pContextData->m_SemiStaticCmdsOut.End();
 		}
 	}

materialsystem/stdshaders/lightmappedgeneric_dx9_helper.h

@@ -86,7 +86,11 @@ struct LightmappedGeneric_DX9_Vars_t
 	int m_nOutlineStart1;
 	int m_nOutlineEnd0;
 	int m_nOutlineEnd1;
-
+	// Parallax cubemaps
+	int m_nEnvmapParallaxObb1;
+	int m_nEnvmapParallaxObb2;
+	int m_nEnvmapParallaxObb3;
+	int m_nEnvmapOrigin;
 };
 
 void InitParamsLightmappedGeneric_DX9( CBaseVSShader *pShader, IMaterialVar** params, const char *pMaterialName, LightmappedGeneric_DX9_Vars_t &info );

materialsystem/stdshaders/lightmappedgeneric_ps2_3_x.h

@@ -100,7 +100,11 @@ const float4 g_FlashlightAttenuationFactors	: register( c13 );
 const float3 g_FlashlightPos				: register( c14 );
 const float4x4 g_FlashlightWorldToTexture	: register( c15 ); // through c18
 const float4 g_ShadowTweaks					: register( c19 );
-
+// Parallax cubemaps
+#if ( PARALLAXCORRECT )
+const float3 g_CubemapPos : register( c21 );
+const float4x4 g_ObbMatrix : register( c22 ); // Through c25
+#endif
 
 sampler BaseTextureSampler		: register( s0 );
 sampler LightmapSampler			: register( s1 );
@@ -530,7 +534,24 @@ HALF4 main( PS_INPUT i ) : COLOR
 		HALF fresnel = 1.0 - dot( worldSpaceNormal, eyeVect );
 		fresnel = pow( fresnel, 5.0 );
 		fresnel = fresnel * g_OneMinusFresnelReflection + g_FresnelReflection;
+	// Parallax correction (2_0b and beyond)
+	// Adapted from http://seblagarde.wordpress.com/2012/09/29/image-based-lighting-approaches-and-parallax-corrected-cubemap/
+#if !( defined( SHADER_MODEL_PS_1_1 ) || defined( SHADER_MODEL_PS_1_4 ) || defined( SHADER_MODEL_PS_2_0 ) )
+#if ( PARALLAXCORRECT )
+	float3 worldPos = i.worldPos_projPosZ.xyz;
+	float3 positionLS = mul( float4( worldPos, 1 ), g_ObbMatrix );
+	float3 rayLS = mul( reflectVect, (float3x3)g_ObbMatrix );
 
+	float3 firstPlaneIntersect = ( float3( 1.0f, 1.0f, 1.0f ) - positionLS ) / rayLS;
+	float3 secondPlaneIntersect = ( -positionLS ) / rayLS;
+	float3 furthestPlane = max( firstPlaneIntersect, secondPlaneIntersect );
+	float distance = min( furthestPlane.x, min( furthestPlane.y, furthestPlane.z ) );
+
+	// Use distance in WS directly to recover intersection
+	float3 intersectPositionWS = worldPos + reflectVect * distance;
+	reflectVect = intersectPositionWS - g_CubemapPos;
+#endif
+#endif
 		specularLighting = ENV_MAP_SCALE * texCUBE( EnvmapSampler, reflectVect );
 		specularLighting *= specularFactor;
 								   

materialsystem/stdshaders/lightmappedgeneric_ps2x.fxc

@@ -24,6 +24,7 @@
 // STATIC: "NORMALMASK_DECODE_MODE"		"0..0"	[PC]
 // STATIC: "DETAIL_BLEND_MODE"			"0..11"
 // STATIC: "FLASHLIGHT"					"0..1"	[ps20b] [XBOX]
+// STATIC: "PARALLAXCORRECT" "0..1"
 
 // DYNAMIC: "FASTPATHENVMAPCONTRAST"	"0..1"
 // DYNAMIC: "FASTPATH"					"0..1"
@@ -54,6 +55,8 @@
 //  SKIP: ($DETAIL_BLEND_MODE == 8 ) || ($DETAIL_BLEND_MODE == 9 )
 //  SKIP ($DETAIL_BLEND_MODE == 10 ) && ($BUMPMAP == 0 )
 //  SKIP ($DETAIL_BLEND_MODE == 11 ) && ($BUMPMAP != 0 )
+//  SKIP: $PARALLAXCORRECT && !$CUBEMAP
+//  SKIP: $PARALLAXCORRECT [ps20]
 
 #include "lightmappedgeneric_ps2_3_x.h"
 

utils/vbsp/cubemap.cpp

@@ -76,7 +76,7 @@ struct CubemapSideData_t
 };
 
 static CubemapSideData_t s_aCubemapSideData[MAX_MAP_BRUSHSIDES];
-
+char *g_pParallaxObbStrs[MAX_MAP_CUBEMAPSAMPLES];
 
 
 inline bool SideHasCubemapAndWasntManuallyReferenced( int iSide )
@@ -85,8 +85,10 @@ inline bool SideHasCubemapAndWasntManuallyReferenced( int iSide )
 }
 
 
-void Cubemap_InsertSample( const Vector& origin, int size )
+void Cubemap_InsertSample( const Vector &origin, int size, char *pParallaxObbStr = "" )
 {
+	g_pParallaxObbStrs[g_nCubemapSamples] = pParallaxObbStr;
+
 	dcubemapsample_t *pSample = &g_CubemapSamples[g_nCubemapSamples];
 	pSample->origin[0] = ( int )origin[0];	
 	pSample->origin[1] = ( int )origin[1];	
@@ -528,7 +530,7 @@ static void GeneratePatchedName( const char *pMaterialName, const PatchInfo_t &i
 //-----------------------------------------------------------------------------
 // Patches the $envmap for a material and all its dependents, returns true if any patching happened
 //-----------------------------------------------------------------------------
-static bool PatchEnvmapForMaterialAndDependents( const char *pMaterialName, const PatchInfo_t &info, const char *pCubemapTexture )
+static bool PatchEnvmapForMaterialAndDependents( const char *pMaterialName, const PatchInfo_t &info, const char *pCubemapTexture, const char *pParallaxObbMatrix = "" )
 {
 	// Do *NOT* patch the material if there is an $envmap specified and it's not 'env_cubemap'
 
@@ -546,7 +548,7 @@ static bool PatchEnvmapForMaterialAndDependents( const char *pMaterialName, cons
 	const char *pDependentMaterial = FindDependentMaterial( pMaterialName, &pDependentMaterialVar );
 	if ( pDependentMaterial )
 	{
-		bDependentMaterialPatched = PatchEnvmapForMaterialAndDependents( pDependentMaterial, info, pCubemapTexture );
+		bDependentMaterialPatched = PatchEnvmapForMaterialAndDependents( pDependentMaterial, info, pCubemapTexture, pParallaxObbMatrix );
 	}
 
 	// If we have neither to patch, we're done
@@ -557,7 +559,7 @@ static bool PatchEnvmapForMaterialAndDependents( const char *pMaterialName, cons
 	char pPatchedMaterialName[1024];
 	GeneratePatchedName( pMaterialName, info, true, pPatchedMaterialName, 1024 );
 
-	MaterialPatchInfo_t pPatchInfo[2];
+	MaterialPatchInfo_t pPatchInfo[6];
 	int nPatchCount = 0;
 	if ( bShouldPatchEnvCubemap )
 	{
@@ -578,7 +580,30 @@ static bool PatchEnvmapForMaterialAndDependents( const char *pMaterialName, cons
 		++nPatchCount;
 	}
 
-	CreateMaterialPatch( pMaterialName, pPatchedMaterialName, nPatchCount, pPatchInfo, PATCH_REPLACE );
+	// Parallax cubemap matrix
+	CUtlVector<char *> matRowList;
+	if ( pParallaxObbMatrix[0] != '\0' )
+	{
+		V_SplitString( pParallaxObbMatrix, ";", matRowList );
+	
+		pPatchInfo[nPatchCount].m_pKey = "$envMapParallaxOBB1";
+		pPatchInfo[nPatchCount].m_pValue = matRowList[0];
+		++nPatchCount;
+		pPatchInfo[nPatchCount].m_pKey = "$envMapParallaxOBB2";
+		pPatchInfo[nPatchCount].m_pValue = matRowList[1];
+		++nPatchCount;
+		pPatchInfo[nPatchCount].m_pKey = "$envMapParallaxOBB3";
+		pPatchInfo[nPatchCount].m_pValue = matRowList[2];
+		++nPatchCount;
+		pPatchInfo[nPatchCount].m_pKey = "$envMapOrigin";
+		pPatchInfo[nPatchCount].m_pValue = matRowList[3];
+		++nPatchCount;
+	}
+
+	CreateMaterialPatch( pMaterialName, pPatchedMaterialName, nPatchCount, pPatchInfo, PATCH_INSERT );
+
+	// Clean up parallax stuff
+	matRowList.PurgeAndDeleteElements();
 
 	return true;
 }
@@ -597,7 +622,7 @@ static bool PatchEnvmapForMaterialAndDependents( const char *pMaterialName, cons
 // default (skybox) cubemap into this file so the cubemap doesn't have the pink checkerboard at
 // runtime before they run buildcubemaps.
 //-----------------------------------------------------------------------------
-static int Cubemap_CreateTexInfo( int originalTexInfo, int origin[3] )
+static int Cubemap_CreateTexInfo( int originalTexInfo, int origin[3], int cubemapIndex )
 {
 	// Don't make cubemap tex infos for nodes
 	if ( originalTexInfo == TEXINFO_NODE )
@@ -638,9 +663,16 @@ static int Cubemap_CreateTexInfo( int originalTexInfo, int origin[3] )
 		char pTextureName[1024];
 		GeneratePatchedName( "c", info, false, pTextureName, 1024 );
 
+		// Append origin info if this cubemap has a parallax OBB
+		char originAppendedString[1024] = "";
+		if ( g_pParallaxObbStrs[cubemapIndex][0] != '\0' )
+		{
+			Q_snprintf( originAppendedString, 1024, "%s;[%d %d %d]", g_pParallaxObbStrs[cubemapIndex], origin[0], origin[1], origin[2] );
+		}
+
 		// Hook the texture into the material and all dependent materials
 		// but if no hooking was necessary, exit out
-		if ( !PatchEnvmapForMaterialAndDependents( pMaterialName, info, pTextureName ) )
+		if ( !PatchEnvmapForMaterialAndDependents( pMaterialName, info, pTextureName, originAppendedString ) )
 			return originalTexInfo;
 		
 		// Store off the name of the cubemap that we need to create since we successfully patched
@@ -730,7 +762,7 @@ void Cubemap_FixupBrushSidesMaterials( void )
 			}
 #endif
 			
-			pSide->texinfo = Cubemap_CreateTexInfo( pSide->texinfo, g_CubemapSamples[cubemapID].origin );
+			pSide->texinfo = Cubemap_CreateTexInfo( pSide->texinfo, g_CubemapSamples[cubemapID].origin, cubemapID );
 			if ( pSide->pMapDisp )
 			{
 				pSide->pMapDisp->face.texinfo = pSide->texinfo;
@@ -946,7 +978,7 @@ void Cubemap_AttachDefaultCubemapToSpecularSides( void )
 			Assert( pSide->texinfo == pSide->pMapDisp->face.texinfo );
 		}
 #endif				
-		pSide->texinfo = Cubemap_CreateTexInfo( pSide->texinfo, g_CubemapSamples[iCubemap].origin );
+		pSide->texinfo = Cubemap_CreateTexInfo( pSide->texinfo, g_CubemapSamples[iCubemap].origin, iCubemap );
 		if ( pSide->pMapDisp )
 		{
 			pSide->pMapDisp->face.texinfo = pSide->texinfo;

utils/vbsp/map.cpp

@@ -5,6 +5,7 @@
 // $NoKeywords: $
 //=============================================================================//
 
+#include "matrixinvert.h"
 #include "vbsp.h"
 #include "map_shared.h"
 #include "disp_vbsp.h"
@@ -1618,16 +1619,96 @@ ChunkFileResult_t CMapFile::LoadEntityCallback(CChunkFile *pFile, int nParam)
 			if( ( g_nDXLevel == 0 ) || ( g_nDXLevel >= 70 ) )
 			{
 				const char* pSideListStr = ValueForKey( mapent, "sides" );
+				char *pParallaxObbStr = ValueForKey( mapent, "parallaxobb" );
 				int size;
 				size = IntForKey( mapent, "cubemapsize" );
-				Cubemap_InsertSample( mapent->origin, size );
+				Cubemap_InsertSample( mapent->origin, size, pParallaxObbStr );
-				Cubemap_SaveBrushSides( pSideListStr );
 			}
 			// clear out this entity
 			mapent->epairs = NULL;
 			return(ChunkFile_Ok);
 		}
 
+		//
+		// parallax_obb brushes are removed after the transformation matrix is found and saved into 
+		// the entity's data (ent will be removed after data transferred to patched materials)
+		//
+		if ( !strcmp( "parallax_obb", pClassName ) )
+		{
+			matrix3x4_t obbMatrix, invObbMatrix;
+			SetIdentityMatrix( obbMatrix );
+			SetIdentityMatrix( invObbMatrix );
+
+			// Get corner and its 3 edges (scaled, local x, y, and z axes)
+			mapbrush_t *brush = &mapbrushes[mapent->firstbrush];
+			Vector corner, x, y, z;
+
+			// Find first valid winding (with these whiles, if not enough valid windings then identity matrix is passed through to VMTs)
+			int i = 0;
+			while ( i < brush->numsides )
+			{
+				winding_t *wind = brush->original_sides[i].winding;
+				if ( !wind )
+				{
+					i++;
+					continue;
+				}
+
+				corner = wind->p[0];
+				y = wind->p[1] - corner;
+				z = wind->p[3] - corner;
+				x = CrossProduct( y, z ).Normalized();
+
+				i++;
+				break;
+			}
+
+			// Skip second valid winding (opposite face from first, unusable for finding Z's length)
+			while ( i < brush->numsides )
+			{
+				winding_t *wind = brush->original_sides[i].winding;
+				if ( !wind )
+				{
+					i++;
+					continue;
+				}
+				i++;
+				break;
+			}
+
+			// Find third valid winding
+			while ( i < brush->numsides )
+			{
+				winding_t *wind = brush->original_sides[i].winding;
+				if ( !wind )
+				{
+					i++;
+					continue;
+				}
+
+				// Find length of X
+				// Start with diagonal, then scale X by the projection of diag onto X
+				Vector diag = wind->p[0] - wind->p[2];
+				x *= abs( DotProduct( diag, x ) );
+
+				// Build transformation matrix (what is needed to turn a [0,0,0] - [1,1,1] cube into this brush)
+				MatrixSetColumn( x, 0, obbMatrix );
+				MatrixSetColumn( y, 1, obbMatrix );
+				MatrixSetColumn( z, 2, obbMatrix );
+				MatrixSetColumn( corner, 3, obbMatrix );
+
+				// Find inverse (we need the world to local matrix, "transformationmatrix" is kind of a misnomer)
+				MatrixInversion( obbMatrix, invObbMatrix );
+				break;
+			}
+				
+			char szMatrix[1024];
+			Q_snprintf( szMatrix, 1024, "[%f %f %f %f];[%f %f %f %f];[%f %f %f %f]", invObbMatrix[0][0], invObbMatrix[0][1], invObbMatrix[0][2], invObbMatrix[0][3], invObbMatrix[1][0], invObbMatrix[1][1], invObbMatrix[1][2], invObbMatrix[1][3], invObbMatrix[2][0], invObbMatrix[2][1], invObbMatrix[2][2], invObbMatrix[2][3] );
+			SetKeyValue( mapent, "transformationmatrix", szMatrix );
+
+			return ( ChunkFile_Ok );
+		}
+
 		if ( !strcmp( "test_sidelist", pClassName ) )
 		{
 			ConvertSideList(mapent, "sides");
@@ -2611,6 +2692,28 @@ bool LoadMapFile( const char *pszFileName )
 
 	if ((eResult == ChunkFile_Ok) || (eResult == ChunkFile_EOF))
 	{
+		// Fill out parallax obb matrix array
+		for ( int i = 0; i < g_nCubemapSamples; i++ )
+		{
+			if ( g_pParallaxObbStrs[i][0] != '\0' )
+			{
+				entity_t *obbEnt = EntityByName( g_pParallaxObbStrs[i] );
+				g_pParallaxObbStrs[i] = ValueForKey( obbEnt, "transformationmatrix" );
+			}
+		}
+
+		// Remove parallax_obb entities (in a nice slow linear search)
+		for ( int i = 0; i < g_MainMap->num_entities; i++ )
+		{
+			entity_t *mapent = &g_MainMap->entities[i];
+			const char *pClassName = ValueForKey( mapent, "classname" );
+			if ( !strcmp( "parallax_obb", pClassName ) )
+			{
+				mapent->numbrushes = 0;
+				mapent->epairs = NULL;
+			}
+		}
+
 		// Update the overlay/side list(s).
 		Overlay_UpdateSideLists( g_LoadingMap->m_StartMapOverlays );
 		OverlayTransition_UpdateSideLists( g_LoadingMap->m_StartMapWaterOverlays );

utils/vbsp/vbsp.h

@@ -607,7 +607,8 @@ void SaveVertexNormals( void );
 
 //=============================================================================
 // cubemap.cpp
-void Cubemap_InsertSample( const Vector& origin, int size );
+extern char *g_pParallaxObbStrs[MAX_MAP_CUBEMAPSAMPLES];
+void Cubemap_InsertSample( const Vector &origin, int size, char *pParallaxObbStr );
 void Cubemap_CreateDefaultCubemaps( void );
 void Cubemap_SaveBrushSides( const char *pSideListStr );
 void Cubemap_FixupBrushSidesMaterials( void );