tr_shader: parse builtin image names

Author: illwieckz

src/engine/renderer/tr_shader.cpp

@@ -1434,20 +1434,38 @@ static bool LoadMap( shaderStage_t *stage, const char *buffer, stageType_t type,
 		return true;
 	}
 
-	if ( !Q_stricmp( token, "$whiteimage" ) || !Q_stricmp( token, "$white" ) || !Q_stricmp( token, "_white" ) ||
-	     !Q_stricmp( token, "*white" ) )
+	if ( !Q_stricmp( token, "$whiteimage" ) || !Q_stricmp( token, "$white" )
+		|| !Q_stricmp( token, "_white" ) || !Q_stricmp( token, "*white" ) )
 	{
 		stage->bundle[ bundleIndex ].image[ 0 ] = tr.whiteImage;
 		return true;
 	}
-	else if ( !Q_stricmp( token, "$blackimage" ) || !Q_stricmp( token, "$black" ) || !Q_stricmp( token, "_black" ) ||
-	          !Q_stricmp( token, "*black" ) )
+	else if ( !Q_stricmp( token, "$blackimage" ) || !Q_stricmp( token, "$black" )
+		|| !Q_stricmp( token, "_black" ) || !Q_stricmp( token, "*black" ) )
 	{
 		stage->bundle[ bundleIndex ].image[ 0 ] = tr.blackImage;
 		return true;
 	}
-	else if ( !Q_stricmp( token, "$flatimage" ) || !Q_stricmp( token, "$flat" ) || !Q_stricmp( token, "_flat" ) ||
-	          !Q_stricmp( token, "*flat" ) )
+	else if ( !Q_stricmp( token, "$redimage" ) || !Q_stricmp( token, "$red" )
+		|| !Q_stricmp( token, "_red" ) || !Q_stricmp( token, "*red" ) )
+	{
+		stage->bundle[ bundleIndex ].image[ 0 ] = tr.redImage;
+		return true;
+	}
+	else if ( !Q_stricmp( token, "$greenimage" ) || !Q_stricmp( token, "$green" )
+		|| !Q_stricmp( token, "_green" ) || !Q_stricmp( token, "*green" ) )
+	{
+		stage->bundle[ bundleIndex ].image[ 0 ] = tr.greenImage;
+		return true;
+	}
+	else if ( !Q_stricmp( token, "$blueimage" ) || !Q_stricmp( token, "$blue" )
+		|| !Q_stricmp( token, "_blue" ) || !Q_stricmp( token, "*blue" ) )
+	{
+		stage->bundle[ bundleIndex ].image[ 0 ] = tr.blueImage;
+		return true;
+	}
+	else if ( !Q_stricmp( token, "$flatimage" ) || !Q_stricmp( token, "$flat" )
+		|| !Q_stricmp( token, "_flat" ) || !Q_stricmp( token, "*flat" ) )
 	{
 		stage->bundle[ bundleIndex ].image[ 0 ] = tr.flatImage;
 		return true;