Fixed 3DS, ASE, MD3 and Q3D orientation after Schrompf' recent changes to the RH-LH conversion.

WIP version of animation support in the 3DS loader. Still hoping to find out why the pivots aren't handled correctly ...
Added first draft of a B3D loader provided by Mark Sibly.
Moved DeterminePType-Step to ScenePreprocessor.
Small LWO fix. Still texturing problems.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@231 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/IRRLoader.cpp

@@ -130,6 +130,29 @@ void IRRImporter::GenerateGraph(Node* root,aiNode* rootOut ,aiScene* scene,
 				break;
 			}
 			attach.push_back(AttachmentInfo(scene,rootOut));
+
+			// now combine the material we've loaded for this mesh
+			// with the real meshes we got from the file. As we
+			// don't execute any pp-steps on the file, the numbers
+			// should be equal. If they are not, we can impossibly
+			// do this  ...
+			if (root->materials.size() != (unsigned int)scene->mNumMaterials)
+			{
+				DefaultLogger::get()->warn("IRR: Failed to match imported materials "
+					"with the materials found in the IRR scene file");
+
+				break;
+			}
+			for (unsigned int i = 0; i < scene->mNumMaterials;++i)
+			{
+				// delete the old material
+				delete scene->mMaterials[i];
+
+				std::pair<aiMaterial*, unsigned int>& src = root->materials[i];
+				scene->mMaterials[i] = src.first;
+
+				// Process material flags (e.g. lightmapping)
+			}
 		}
 		break;