Made obj group support optional via SceneParameter.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1264 dfc29bdd-3216-0410-991c-e03cc46cb475

include/SceneParameters.h

@@ -95,13 +95,22 @@ namespace scene
 	/** Use it like this:
 	 \code
 	 //this way you'll choose to flip alpha textures
-     SceneManager->()->setAttribute(
+     SceneManager->getParameters()->setAttribute(
 	   scene::DMF_FLIP_ALPHA_TEXTURES, true); 
 	\endcode
 	**/ 
 	const c8* const DMF_FLIP_ALPHA_TEXTURES = "DMF_FlipAlpha";
 
 
+	//! Flag to avoid loading group structures in .obj files
+	/** Use it like this:
+	 \code
+     SceneManager->getParameters()->setAttribute(scene::OBJ_LOADER_IGNORE_GROUPS, true); 
+	\endcode
+	**/ 
+	const c8* const OBJ_LOADER_IGNORE_GROUPS = "OBJ_IgnoreGroups";
+
+
 	//! Flag set as parameter when the scene manager is used as editor
 	/** In this way special animators like deletion animators can be stopped from
 	deleting scene nodes for example */

source/Irrlicht/COBJMeshFileLoader.cpp

@@ -12,6 +12,7 @@
 #include "SMeshBuffer.h"
 #include "SAnimatedMesh.h"
 #include "IReadFile.h"
+#include "IAttributes.h"
 #include "fast_atof.h"
 #include "coreutil.h"
 #include "irrMap.h"
@@ -94,6 +95,7 @@ IAnimatedMesh* COBJMeshFileLoader::createMesh(io::IReadFile* file)
 	// Process obj information
 	const c8* bufPtr = buf;
 	core::stringc grpName;
+	bool useGroups = !SceneManager->getParameters()->getAttributeAsBool(OBJ_LOADER_IGNORE_GROUPS);
 	while(bufPtr != bufEnd)
 	{
 		switch(bufPtr[0])
@@ -139,6 +141,7 @@ IAnimatedMesh* COBJMeshFileLoader::createMesh(io::IReadFile* file)
 			{
 				c8 grp[WORD_BUFFER_LENGTH];
 				bufPtr = goAndCopyNextWord(grp, bufPtr, WORD_BUFFER_LENGTH, bufEnd);
+				if (useGroups)
 					grpName = grp;
 			}
 			break;