public static void GetAllMaterialsToString()

in unity/Assets/UnityFBXExporter/FBXUnityMaterialGetter.cs [50:189]
88 lines of code
14 McCabe index (conditional complexity)

		public static void GetAllMaterialsToString(GameObject gameObj, string newPath, bool copyMaterials, bool copyTextures, out Material[] materials, out string matObjects, out string connections)
		{
			StringBuilder tempObjectSb = new StringBuilder();
			StringBuilder tempConnectionsSb = new StringBuilder();

            // Need to get all unique materials for the submesh here and then write them in
            //@cartzhang modify.As meshrender and skinnedrender is same level in inherit relation shape.
            // if not check,skinned render ,may lost some materials.
            Renderer[] meshRenders = gameObj.GetComponentsInChildren<Renderer>();
			
			List<Material> uniqueMaterials = new List<Material>();

			// Gets all the unique materials within this GameObject Hierarchy
			for(int i = 0; i < meshRenders.Length; i++)
			{
				for(int n = 0; n < meshRenders[i].sharedMaterials.Length; n++)
				{
					Material mat = meshRenders[i].sharedMaterials[n];
					
					if(uniqueMaterials.Contains(mat) == false && mat != null)
					{
						uniqueMaterials.Add(mat);
					}
				}
			}

            for (int i = 0; i < uniqueMaterials.Count; i++)
			{
				Material mat = uniqueMaterials[i];

				// We rename the material if it is being copied
				string materialName = mat.name;
				if(copyMaterials)
					materialName = gameObj.name + "_" + mat.name;

				int referenceId = Mathf.Abs(mat.GetInstanceID());

				tempObjectSb.AppendLine();
				tempObjectSb.AppendLine("\tMaterial: " + referenceId + ", \"Material::" + materialName + "\", \"\" {");
				tempObjectSb.AppendLine("\t\tVersion: 102");
				tempObjectSb.AppendLine("\t\tShadingModel: \"phong\"");
				tempObjectSb.AppendLine("\t\tMultiLayer: 0");
				tempObjectSb.AppendLine("\t\tProperties70:  {");
				tempObjectSb.AppendFormat("\t\t\tP: \"Diffuse\", \"Vector3D\", \"Vector\", \"\",{0},{1},{2}", mat.color.r, mat.color.g, mat.color.b);
				tempObjectSb.AppendLine();
				tempObjectSb.AppendFormat("\t\t\tP: \"DiffuseColor\", \"Color\", \"\", \"A\",{0},{1},{2}", mat.color.r, mat.color.g, mat.color.b);
				tempObjectSb.AppendLine();

				// TODO: Figure out if this property can be written to the FBX file
	//			if(mat.HasProperty("_MetallicGlossMap"))
	//			{
	//				Debug.Log("has metallic gloss map");
	//				Color color = mat.GetColor("_Color");
	//				tempObjectSb.AppendFormat("\t\t\tP: \"Specular\", \"Vector3D\", \"Vector\", \"\",{0},{1},{2}", color.r, color.g, color.r);
	//				tempObjectSb.AppendLine();
	//				tempObjectSb.AppendFormat("\t\t\tP: \"SpecularColor\", \"ColorRGB\", \"Color\", \" \",{0},{1},{2}", color.r, color.g, color.b);
	//				tempObjectSb.AppendLine();
	//			}

				if(mat.HasProperty("_SpecColor"))
				{
					Color color = mat.GetColor("_SpecColor");
					tempObjectSb.AppendFormat("\t\t\tP: \"Specular\", \"Vector3D\", \"Vector\", \"\",{0},{1},{2}", color.r, color.g, color.r);
					tempObjectSb.AppendLine();
					tempObjectSb.AppendFormat("\t\t\tP: \"SpecularColor\", \"ColorRGB\", \"Color\", \" \",{0},{1},{2}", color.r, color.g, color.b);
					tempObjectSb.AppendLine();
				}

				if(mat.HasProperty("_Mode"))
				{
					Color color = Color.white;

					switch((int)mat.GetFloat("_Mode"))
					{
					case 0: // Map is opaque

						break;

					case 1: // Map is a cutout
						//  TODO: Add option if it is a cutout
						break;

					case 2: // Map is a fade
						color = mat.GetColor("_Color");
						
						tempObjectSb.AppendFormat("\t\t\tP: \"TransparentColor\", \"Color\", \"\", \"A\",{0},{1},{2}", color.r, color.g, color.b);
						tempObjectSb.AppendLine();
						tempObjectSb.AppendFormat("\t\t\tP: \"Opacity\", \"double\", \"Number\", \"\",{0}", color.a);
						tempObjectSb.AppendLine();
						break;

					case 3: // Map is transparent
						color = mat.GetColor("_Color");

						tempObjectSb.AppendFormat("\t\t\tP: \"TransparentColor\", \"Color\", \"\", \"A\",{0},{1},{2}", color.r, color.g, color.b);
						tempObjectSb.AppendLine();
						tempObjectSb.AppendFormat("\t\t\tP: \"Opacity\", \"double\", \"Number\", \"\",{0}", color.a);
						tempObjectSb.AppendLine();
						break;
					}
				}

				// NOTE: Unity doesn't currently import this information (I think) from an FBX file.
				if(mat.HasProperty("_EmissionColor"))
				{
					Color color = mat.GetColor("_EmissionColor");

					tempObjectSb.AppendFormat("\t\t\tP: \"Emissive\", \"Vector3D\", \"Vector\", \"\",{0},{1},{2}", color.r, color.g, color.b);
					tempObjectSb.AppendLine();

					float averageColor = (color.r + color.g + color.b) / 3f;

					tempObjectSb.AppendFormat("\t\t\tP: \"EmissiveFactor\", \"Number\", \"\", \"A\",{0}", averageColor);
					tempObjectSb.AppendLine();
				}

				// TODO: Add these to the file based on their relation to the PBR files
//				tempObjectSb.AppendLine("\t\t\tP: \"AmbientColor\", \"Color\", \"\", \"A\",0,0,0");
//				tempObjectSb.AppendLine("\t\t\tP: \"ShininessExponent\", \"Number\", \"\", \"A\",6.31179285049438");
//				tempObjectSb.AppendLine("\t\t\tP: \"Ambient\", \"Vector3D\", \"Vector\", \"\",0,0,0");
//				tempObjectSb.AppendLine("\t\t\tP: \"Shininess\", \"double\", \"Number\", \"\",6.31179285049438");
//				tempObjectSb.AppendLine("\t\t\tP: \"Reflectivity\", \"double\", \"Number\", \"\",0");

				tempObjectSb.AppendLine("\t\t}");
				tempObjectSb.AppendLine("\t}");

				string textureObjects;
				string textureConnections;

				SerializedTextures(gameObj, newPath, mat, materialName, copyTextures, out textureObjects, out textureConnections);

				tempObjectSb.Append(textureObjects);
				tempConnectionsSb.Append(textureConnections);
			}

			materials = uniqueMaterials.ToArray<Material>();

			matObjects = tempObjectSb.ToString();
			connections = tempConnectionsSb.ToString();
		}