Function SaveToStream

src/Nazara/Utility/Formats/OBJSaver.cpp:60–208

		}

		bool SaveToStream(const Mesh& mesh, const String& format, Stream& stream, const MeshParams& parameters)
		{
			NazaraUnused(parameters);

			if (!mesh.IsValid())
			{
				NazaraError("Invalid mesh");
				return false;
			}

			if (mesh.IsAnimable())
			{
				NazaraError("An animated mesh cannot be saved to " + format + " format");
				return false;
			}

			UInt32 worstCacheVertexCount = mesh.GetVertexCount();
			OBJParser objFormat;
			objFormat.SetNormalCount(worstCacheVertexCount);
			objFormat.SetPositionCount(worstCacheVertexCount);
			objFormat.SetTexCoordCount(worstCacheVertexCount);

			String mtlPath = stream.GetPath();
			if (!mtlPath.IsEmpty())
			{
				mtlPath.Replace(".obj", ".mtl");
				String fileName = mtlPath.SubStringFrom(NAZARA_DIRECTORY_SEPARATOR, -1, true);
				if (!fileName.IsEmpty())
					objFormat.SetMtlLib(fileName);
			}

			VertexCache<Vector3f> normalCache(objFormat.GetNormals());
			VertexCache<Vector4f> positionCache(objFormat.GetPositions());
			VertexCache<Vector3f> texCoordsCache(objFormat.GetTexCoords());

			// Materials
			MTLParser mtlFormat;
			std::unordered_set<String> registredMaterials;

			UInt32 matCount = mesh.GetMaterialCount();
			String* materialNames = objFormat.SetMaterialCount(matCount);
			for (UInt32 i = 0; i < matCount; ++i)
			{
				const ParameterList& matData = mesh.GetMaterialData(i);

				String name;
				if (!matData.GetStringParameter(MaterialData::Name, &name))
					name = "material_" + String::Number(i);

				// Makes sure we only have one material of that name
				while (registredMaterials.find(name) != registredMaterials.end())
					name += '_';

				registredMaterials.insert(name);
				materialNames[i] = name;

				MTLParser::Material* material = mtlFormat.AddMaterial(name);