FBX add roughness mappings and fixes general some material bugs

- Fixed bug with FBX so we can import material values from the document for PBR when using StingRay (not Arnold *yet*)
- Adds more explicit errors and makes things simpler to read. Has more sanity checks to be sure things are working correctly
- Lazy Properties fixed items not loading due to capital letter errors in FBX parser
- Added debug tools to the materials so you know explicitly what material mapping is assigned to a texture and where it came from. (enable verbose printing to use this)
- Fix broken material mappings and debug entries properly
- Fix make embedded images properly detected
- Spam less errors for unsupported shading models with materials.

Future plans:
- Arnold materials need converted to PBR model, if possible.

modules/fbx/data/fbx_material.cpp

@@ -37,7 +37,7 @@ String FBXMaterial::get_material_name() const {
 	return material_name;
 }
 
-void FBXMaterial::set_imported_material(const FBXDocParser::Material *p_material) {
+void FBXMaterial::set_imported_material(FBXDocParser::Material *p_material) {
 	material = p_material;
 }
 
@@ -167,6 +167,11 @@ FBXMaterial::MaterialInfo FBXMaterial::extract_material_info(const FBXDocParser:
 
 		const String file_extension_uppercase = file_extension.to_upper();
 
+		// TODO: one day we can add this
+		if (file_extension.empty()) {
+			continue; // skip it
+		}
+
 		// TODO: we don't support EMBED for DDS and TGA.
 		ERR_CONTINUE_MSG(
 				file_extension_uppercase != "PNG" &&
@@ -178,8 +183,9 @@ FBXMaterial::MaterialInfo FBXMaterial::extract_material_info(const FBXDocParser:
 				"The FBX file contains a texture with an unrecognized extension: " + file_extension_uppercase);
 
 		const String texture_name = absoulte_fbx_file_path.get_file();
+		print_verbose("Getting FBX mapping mode for " + String(fbx_mapping_name.c_str()));
 		const SpatialMaterial::TextureParam mapping_mode = fbx_texture_mapping_desc.at(fbx_mapping_name);
-
+		print_verbose("Set FBX mapping mode to " + get_texture_param_name(mapping_mode));
 		TextureFileMapping file_mapping;
 		file_mapping.map_mode = mapping_mode;
 		file_mapping.name = texture_name;
@@ -261,7 +267,6 @@ Ref<SpatialMaterial> FBXMaterial::import_material(ImportState &state) {
 	// Extract other parameters info.
 	for (FBXDocParser::LazyPropertyMap::value_type iter : material->Props()->GetLazyProperties()) {
 		const std::string name = iter.first;
-		//const Assimp::FBX::ElementPtr element = iter.second;
 
 		if (name.empty()) {
 			continue;
@@ -272,26 +277,31 @@ Ref<SpatialMaterial> FBXMaterial::import_material(ImportState &state) {
 			desc = fbx_properties_desc.at(name);
 		}
 
+		// check if we can ignore this it will be done at the next phase
+		if (desc == PROPERTY_DESC_NOT_FOUND || desc == PROPERTY_DESC_IGNORE) {
+			// count the texture mapping references. Skip this one if it's found and we can't look up a property value.
+			if (fbx_texture_mapping_desc.count(name) > 0) {
+				continue; // safe to ignore it's a texture mapping.
+			}
+		}
+
 		if (desc == PROPERTY_DESC_IGNORE) {
-			print_verbose("The FBX material parameter: `" + String(name.c_str()) + "` is ignored.");
+			WARN_PRINT("[Ignored] The FBX material parameter: `" + String(name.c_str()) + "` is ignored.");
 			continue;
 		} else {
 			print_verbose("FBX Material parameter: " + String(name.c_str()));
 		}
 
+		// DISABLE when adding support for all weird and wonderful material formats
 		if (desc == PROPERTY_DESC_NOT_FOUND) {
 			continue;
 		}
 
 		ERR_CONTINUE_MSG(desc == PROPERTY_DESC_NOT_FOUND, "The FBX material parameter: `" + String(name.c_str()) + "` was not recognized. Please open an issue so we can add the support to it.");
 
-		FBXDocParser::PropertyPtr prop = material->Props()->Get(name);
+		const FBXDocParser::PropertyTable *tbl = material->Props();
+		FBXDocParser::PropertyPtr prop = tbl->Get(name);
 
-		//Assimp::FBX::PropertyPtr prop = prop.second.
-
-		if (prop == nullptr) {
-			continue;
-		}
 		ERR_CONTINUE_MSG(prop == nullptr, "This file may be corrupted because is not possible to extract the material parameter: " + String(name.c_str()));
 
 		if (spatial_material.is_null()) {
@@ -299,54 +309,133 @@ Ref<SpatialMaterial> FBXMaterial::import_material(ImportState &state) {
 			spatial_material.instance();
 		}
 
+		const FBXDocParser::TypedProperty<real_t> *real_value = dynamic_cast<const FBXDocParser::TypedProperty<real_t> *>(prop);
+		const FBXDocParser::TypedProperty<Vector3> *vector_value = dynamic_cast<const FBXDocParser::TypedProperty<Vector3> *>(prop);
+
+		if (!real_value && !vector_value) {
+			WARN_PRINT("unsupported datatype in property: " + String(name.c_str()));
+			continue;
+		}
+
 		switch (desc) {
 			case PROPERTY_DESC_ALBEDO_COLOR: {
-				const Vector3 color = extract_from_prop(prop, Vector3(0, 0, 0), name, "Vector3");
+				if (vector_value) {
-				// Make sure to not lost any eventual opacity.
+					const Vector3 &color = vector_value->Value();
-				Color c = spatial_material->get_albedo();
+					// Make sure to not lost any eventual opacity.
-				c[0] = color[0];
+					Color c = spatial_material->get_albedo();
-				c[1] = color[1];
+					c[0] = color[0];
-				c[2] = color[2];
+					c[1] = color[1];
-				spatial_material->set_albedo(c);
+					c[2] = color[2];
+					spatial_material->set_albedo(c);
+				} else if (real_value) {
+					print_error("albedo is unsupported format?");
+				}
 			} break;
 			case PROPERTY_DESC_TRANSPARENT: {
-				const real_t opacity = extract_from_prop(prop, 1.0f, name, "float");
+				if (real_value) {
-				if (opacity < (1.0 - CMP_EPSILON)) {
+					const real_t opacity = real_value->Value();
-					Color c = spatial_material->get_albedo();
+					if (opacity < (1.0 - CMP_EPSILON)) {
-					c[3] = opacity;
+						Color c = spatial_material->get_albedo();
-					spatial_material->set_albedo(c);
+						c[3] = opacity;
-					material_info.features.push_back(SpatialMaterial::Feature::FEATURE_TRANSPARENT);
+						spatial_material->set_albedo(c);
-					spatial_material->set_depth_draw_mode(SpatialMaterial::DEPTH_DRAW_ALPHA_OPAQUE_PREPASS);
+						material_info.features.push_back(SpatialMaterial::Feature::FEATURE_TRANSPARENT);
+						spatial_material->set_depth_draw_mode(SpatialMaterial::DEPTH_DRAW_ALPHA_OPAQUE_PREPASS);
+					}
+				} else if (vector_value) {
+					print_error("unsupported transparent desc type vector!");
+				}
+			} break;
+			case PROPERTY_DESC_SPECULAR: {
+				if (real_value) {
+					print_verbose("specular real value: " + rtos(real_value->Value()));
+					spatial_material->set_specular(MIN(1.0, real_value->Value()));
+				}
+
+				if (vector_value) {
+					print_error("unsupported specular vector value: " + vector_value->Value());
+				}
+			} break;
+			case PROPERTY_DESC_SPECULAR_ROUGHNESS: {
+				if (real_value) {
+					print_verbose("specular roughness value:" + rtos(real_value->Value()));
+					spatial_material->set_roughness(MIN(1.0f, real_value->Value()));
+				}
+
+				if (vector_value) {
+					print_error("unsupported specular roughness color: " + vector_value->Value());
+				}
+			} break;
+			case PROPERTY_DESC_SPECULAR_COLOR: {
+				if (vector_value) {
+					print_error("unsupported specular color: " + vector_value->Value());
+				}
+			} break;
+			case PROPERTY_DESC_SHINYNESS: {
+				if (real_value) {
+					print_error("unsupported shinyness:" + rtos(real_value->Value()));
 				}
 			} break;
 			case PROPERTY_DESC_METALLIC: {
-				spatial_material->set_metallic(std::min(1.0f, extract_from_prop(prop, 1.0f, name, "float")));
+				if (real_value) {
+					print_verbose("metallic real value: " + rtos(real_value->Value()));
+					spatial_material->set_metallic(MIN(1.0f, real_value->Value()));
+				} else {
+					print_error("unsupported value type for metallic");
+				}
 			} break;
 			case PROPERTY_DESC_ROUGHNESS: {
-				spatial_material->set_roughness(std::min(1.0f, extract_from_prop(prop, 1.0f, name, "float")));
+				if (real_value) {
+					print_verbose("roughness real value: " + rtos(real_value->Value()));
+					spatial_material->set_roughness(MIN(1.0f, real_value->Value()));
+				} else {
+					print_error("unsupported value type for roughness");
+				}
 			} break;
 			case PROPERTY_DESC_COAT: {
-				spatial_material->set_clearcoat(extract_from_prop(prop, 1.0f, name, "float"));
+				if (real_value) {
-				material_info.features.push_back(SpatialMaterial::Feature::FEATURE_CLEARCOAT);
+					material_info.features.push_back(SpatialMaterial::Feature::FEATURE_CLEARCOAT);
+					print_verbose("clearcoat real value: " + rtos(real_value->Value()));
+					spatial_material->set_clearcoat(MIN(1.0f, real_value->Value()));
+				} else {
+					print_error("unsupported value type for clearcoat");
+				}
 			} break;
 			case PROPERTY_DESC_COAT_ROUGHNESS: {
-				spatial_material->set_clearcoat_gloss(1.0 - extract_from_prop(prop, 0.5f, name, "float"));
+				if (real_value) {
-				material_info.features.push_back(SpatialMaterial::Feature::FEATURE_CLEARCOAT);
+					print_verbose("clearcoat real value: " + rtos(real_value->Value()));
+					spatial_material->set_clearcoat_gloss(1.0 - real_value->Value());
+
+					material_info.features.push_back(SpatialMaterial::Feature::FEATURE_CLEARCOAT);
+				} else {
+					print_error("unsupported value type for clearcoat gloss");
+				}
 			} break;
 			case PROPERTY_DESC_EMISSIVE: {
-				const real_t emissive = extract_from_prop(prop, 0.0f, name, "float");
+				if (real_value) {
-				if (emissive > CMP_EPSILON) {
+					print_verbose("Emissive real value: " + rtos(real_value->Value()));
-					spatial_material->set_emission_energy(emissive);
+					spatial_material->set_emission_energy(real_value->Value());
+					material_info.features.push_back(SpatialMaterial::Feature::FEATURE_EMISSION);
+				} else {
+					const Vector3 &color = vector_value->Value();
+					Color c;
+					c[0] = color[0];
+					c[1] = color[1];
+					c[2] = color[2];
+					spatial_material->set_emission(c);
 					material_info.features.push_back(SpatialMaterial::Feature::FEATURE_EMISSION);
 				}
 			} break;
 			case PROPERTY_DESC_EMISSIVE_COLOR: {
-				const Vector3 color = extract_from_prop(prop, Vector3(0, 0, 0), name, "Vector3");
+				if (vector_value) {
-				Color c;
+					const Vector3 &color = vector_value->Value();
-				c[0] = color[0];
+					Color c;
-				c[1] = color[1];
+					c[0] = color[0];
-				c[2] = color[2];
+					c[1] = color[1];
-				spatial_material->set_emission(c);
+					c[2] = color[2];
+					spatial_material->set_emission(c);
+				} else {
+					print_error("unsupported value type for emissive color");
+				}
 			} break;
 			case PROPERTY_DESC_NOT_FOUND:
 			case PROPERTY_DESC_IGNORE:
@@ -386,7 +475,7 @@ Ref<SpatialMaterial> FBXMaterial::import_material(ImportState &state) {
 				state.cached_image_searches.insert(mapping.name, texture);
 				print_verbose("Created texture from loaded image file.");
 
-			} else if (mapping.texture != nullptr && mapping.texture->Media() != nullptr) {
+			} else if (mapping.texture != nullptr && mapping.texture->Media() != nullptr && mapping.texture->Media()->IsEmbedded()) {
 				// This is an embedded texture. Extract it.
 				Ref<Image> image;
 				image.instance();
@@ -409,8 +498,8 @@ Ref<SpatialMaterial> FBXMaterial::import_material(ImportState &state) {
 				} else if (extension == "TGA") {
 
 					// The stored file is a TGA.
-					//image = Image::_tga_mem_loader_func(mapping.texture->Media()->Content(), mapping.texture->Media()->ContentLength());
+					image = Image::_tga_mem_loader_func(mapping.texture->Media()->Content(), mapping.texture->Media()->ContentLength());
-					//ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded TGA image load fail.");
+					ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded TGA image load fail.");
 
 				} else if (extension == "WEBP") {
 
@@ -476,6 +565,8 @@ Ref<SpatialMaterial> FBXMaterial::import_material(ImportState &state) {
 				break;
 		}
 
+		print_verbose("Texture mapping mode: " + itos(mapping.map_mode) + "  name: " + get_texture_param_name(mapping.map_mode));
+
 		spatial_material->set_texture(mapping.map_mode, texture);
 	}
 

modules/fbx/data/fbx_material.h

@@ -38,7 +38,7 @@
 
 struct FBXMaterial : public Reference {
 	String material_name = String();
-	mutable const FBXDocParser::Material *material = nullptr;
+	FBXDocParser::Material *material = nullptr;
 
 	/* Godot materials
 	 *** Texture Maps:
@@ -69,6 +69,48 @@ struct FBXMaterial : public Reference {
 		ReflectionM,
 	};
 
+	/* Returns the string representation of the TextureParam enum */
+	static String get_texture_param_name(SpatialMaterial::TextureParam param) {
+		switch (param) {
+			case SpatialMaterial::TEXTURE_ALBEDO:
+				return "TEXTURE_ALBEDO";
+			case SpatialMaterial::TEXTURE_METALLIC:
+				return "TEXTURE_METALLIC";
+			case SpatialMaterial::TEXTURE_ROUGHNESS:
+				return "TEXTURE_ROUGHNESS";
+			case SpatialMaterial::TEXTURE_EMISSION:
+				return "TEXTURE_EMISSION";
+			case SpatialMaterial::TEXTURE_NORMAL:
+				return "TEXTURE_NORMAL";
+			case SpatialMaterial::TEXTURE_RIM:
+				return "TEXTURE_RIM";
+			case SpatialMaterial::TEXTURE_CLEARCOAT:
+				return "TEXTURE_CLEARCOAT";
+			case SpatialMaterial::TEXTURE_FLOWMAP:
+				return "TEXTURE_FLOWMAP";
+			case SpatialMaterial::TEXTURE_AMBIENT_OCCLUSION:
+				return "TEXTURE_AMBIENT_OCCLUSION";
+			case SpatialMaterial::TEXTURE_DEPTH:
+				return "TEXTURE_DEPTH";
+			case SpatialMaterial::TEXTURE_SUBSURFACE_SCATTERING:
+				return "TEXTURE_SUBSURFACE_SCATTERING";
+			case SpatialMaterial::TEXTURE_TRANSMISSION:
+				return "TEXTURE_TRANSMISSION";
+			case SpatialMaterial::TEXTURE_REFRACTION:
+				return "TEXTURE_REFRACTION";
+			case SpatialMaterial::TEXTURE_DETAIL_MASK:
+				return "TEXTURE_DETAIL_MASK";
+			case SpatialMaterial::TEXTURE_DETAIL_ALBEDO:
+				return "TEXTURE_DETAIL_ALBEDO";
+			case SpatialMaterial::TEXTURE_DETAIL_NORMAL:
+				return "TEXTURE_DETAIL_NORMAL";
+			case SpatialMaterial::TEXTURE_MAX:
+				return "TEXTURE_MAX";
+			default:
+				return "broken horribly";
+		}
+	};
+
 	// TODO make this static?
 	const std::map<std::string, SpatialMaterial::Feature> fbx_feature_mapping_desc = {
 		/* Transparent */
@@ -105,29 +147,33 @@ struct FBXMaterial : public Reference {
 		{ "Maya|specularColor", SpatialMaterial::TextureParam::TEXTURE_METALLIC },
 		{ "Maya|SpecularTexture", SpatialMaterial::TextureParam::TEXTURE_METALLIC },
 		{ "Maya|SpecularTexture|file", SpatialMaterial::TextureParam::TEXTURE_METALLIC },
-		{ "ShininessExponent", SpatialMaterial::TextureParam::TEXTURE_METALLIC },
+
 		/* Roughness */
-		{ "Maya|diffuseRoughness", SpatialMaterial::TextureParam::TEXTURE_ROUGHNESS },
+
-		{ "Maya|diffuseRoughness|file", SpatialMaterial::TextureParam::TEXTURE_ROUGHNESS },
 		{ "3dsMax|Parameters|roughness_map", SpatialMaterial::TextureParam::TEXTURE_ROUGHNESS },
 		{ "Maya|TEX_roughness_map", SpatialMaterial::TextureParam::TEXTURE_ROUGHNESS },
 		{ "Maya|TEX_roughness_map|file", SpatialMaterial::TextureParam::TEXTURE_ROUGHNESS },
-		{ "ReflectionFactor", SpatialMaterial::TextureParam::TEXTURE_ROUGHNESS },
+
-		{ "Maya|specularRoughness", SpatialMaterial::TextureParam::TEXTURE_ROUGHNESS },
 		/* Normal */
 		{ "NormalMap", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
-		{ "Bump", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
+		//{ "Bump", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
-		{ "3dsMax|Parameters|bump_map", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
+		//{ "3dsMax|Parameters|bump_map", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
 		{ "Maya|NormalTexture", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
-		{ "Maya|normalCamera", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
+		//{ "Maya|normalCamera", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
-		{ "Maya|normalCamera|file", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
+		//{ "Maya|normalCamera|file", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
 		{ "Maya|TEX_normal_map", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
 		{ "Maya|TEX_normal_map|file", SpatialMaterial::TextureParam::TEXTURE_NORMAL },
 		/* AO */
 		{ "Maya|TEX_ao_map", SpatialMaterial::TextureParam::TEXTURE_AMBIENT_OCCLUSION },
 		{ "Maya|TEX_ao_map|file", SpatialMaterial::TextureParam::TEXTURE_AMBIENT_OCCLUSION },
-		//	{"TransparentColor",SpatialMaterial::TextureParam::TEXTURE_CHANNEL_ALPHA },
+
-		//	{"TransparencyFactor",SpatialMaterial::TextureParam::TEXTURE_CHANNEL_ALPHA }
+		//{ "Maya|diffuseRoughness", SpatialMaterial::TextureParam::UNSUPPORTED },
+		//{ "Maya|diffuseRoughness|file", SpatialMaterial::TextureParam::UNSUPPORTED },
+		//{ "Maya|specularRoughness", SpatialMaterial::TextureParam::UNSUPPORTED },
+		//{ "ShininessExponent", SpatialMaterial::TextureParam::UNSUPPORTED },
+		//{ "ReflectionFactor", SpatialMaterial::TextureParam::UNSUPPORTED },
+		//{ "TransparentColor",SpatialMaterial::TextureParam::TEXTURE_CHANNEL_ALPHA },
+		//{ "TransparencyFactor",SpatialMaterial::TextureParam::TEXTURE_CHANNEL_ALPHA }
 	};
 
 	// TODO make this static?
@@ -137,6 +183,10 @@ struct FBXMaterial : public Reference {
 		PROPERTY_DESC_TRANSPARENT,
 		PROPERTY_DESC_METALLIC,
 		PROPERTY_DESC_ROUGHNESS,
+		PROPERTY_DESC_SPECULAR,
+		PROPERTY_DESC_SPECULAR_COLOR,
+		PROPERTY_DESC_SPECULAR_ROUGHNESS,
+		PROPERTY_DESC_SHINYNESS,
 		PROPERTY_DESC_COAT,
 		PROPERTY_DESC_COAT_ROUGHNESS,
 		PROPERTY_DESC_EMISSIVE,
@@ -149,6 +199,13 @@ struct FBXMaterial : public Reference {
 		{ "DiffuseColor", PROPERTY_DESC_ALBEDO_COLOR },
 		{ "Maya|baseColor", PROPERTY_DESC_ALBEDO_COLOR },
 
+		/* Specular */
+		{ "Maya|specular", PROPERTY_DESC_SPECULAR },
+		{ "Maya|specularColor", PROPERTY_DESC_SPECULAR_COLOR },
+
+		/* Specular roughness */
+		{ "Maya|specularRoughness", PROPERTY_DESC_SPECULAR_ROUGHNESS },
+
 		/* Transparent */
 		{ "Opacity", PROPERTY_DESC_TRANSPARENT },
 		{ "TransparencyFactor", PROPERTY_DESC_TRANSPARENT },
@@ -158,9 +215,10 @@ struct FBXMaterial : public Reference {
 		{ "Shininess", PROPERTY_DESC_METALLIC },
 		{ "Reflectivity", PROPERTY_DESC_METALLIC },
 		{ "Maya|metalness", PROPERTY_DESC_METALLIC },
+		{ "Maya|metallic", PROPERTY_DESC_METALLIC },
 
 		/* Roughness */
-		{ "Maya|diffuseRoughness", PROPERTY_DESC_ROUGHNESS },
+		{ "Maya|roughness", PROPERTY_DESC_ROUGHNESS },
 
 		/* Coat */
 		{ "Maya|coat", PROPERTY_DESC_COAT },
@@ -170,14 +228,16 @@ struct FBXMaterial : public Reference {
 
 		/* Emissive */
 		{ "Maya|emission", PROPERTY_DESC_EMISSIVE },
+		{ "Maya|emissive", PROPERTY_DESC_EMISSIVE },
 
 		/* Emissive color */
 		{ "EmissiveColor", PROPERTY_DESC_EMISSIVE_COLOR },
 		{ "Maya|emissionColor", PROPERTY_DESC_EMISSIVE_COLOR },
 
 		/* Ignore */
+		{ "Maya|diffuseRoughness", PROPERTY_DESC_IGNORE },
 		{ "Maya", PROPERTY_DESC_IGNORE },
-		{ "Diffuse", PROPERTY_DESC_IGNORE },
+		{ "Diffuse", PROPERTY_DESC_ALBEDO_COLOR },
 		{ "Maya|TypeId", PROPERTY_DESC_IGNORE },
 		{ "Ambient", PROPERTY_DESC_IGNORE },
 		{ "AmbientColor", PROPERTY_DESC_IGNORE },
@@ -218,7 +278,7 @@ struct FBXMaterial : public Reference {
 
 	String get_material_name() const;
 
-	void set_imported_material(const FBXDocParser::Material *p_material);
+	void set_imported_material(FBXDocParser::Material *p_material);
 
 	struct MaterialInfo {
 		Vector<TextureFileMapping> textures;

modules/fbx/editor_scene_importer_fbx.cpp

@@ -505,7 +505,7 @@ Spatial *EditorSceneImporterFBX::_generate_scene(
 		for (uint64_t material_id : materials) {
 
 			FBXDocParser::LazyObject *lazy_material = p_document->GetObject(material_id);
-			const FBXDocParser::Material *mat = lazy_material->Get<FBXDocParser::Material>();
+			FBXDocParser::Material *mat = (FBXDocParser::Material *)lazy_material->Get<FBXDocParser::Material>();
 			ERR_CONTINUE_MSG(!mat, "Could not convert fbx material by id: " + itos(material_id));
 
 			Ref<FBXMaterial> material;

modules/fbx/fbx_parser/FBXDocument.h

@@ -644,6 +644,10 @@ public:
 		return type;
 	}
 
+	bool IsEmbedded() const {
+		return contentLength > 0;
+	}
+
 	const std::string &FileName() const {
 		return fileName;
 	}

modules/fbx/fbx_parser/FBXMaterial.cpp

@@ -109,9 +109,11 @@ Material::Material(uint64_t id, const ElementPtr element, const Document &doc, c
 	std::string templateName;
 
 	if (shading == "phong") {
-		templateName = "Material.FbxSurfacePhong";
+		templateName = "Material.Phong";
 	} else if (shading == "lambert") {
-		templateName = "Material.FbxSurfaceLambert";
+		templateName = "Material.Lambert";
+	} else if (shading == "unknown") {
+		templateName = "Material.StingRay";
 	} else {
 		DOMWarning("shading mode not recognized: " + shading, element);
 	}

modules/fbx/fbx_parser/FBXProperties.cpp

@@ -124,7 +124,7 @@ PropertyPtr ReadTypedProperty(const ElementPtr element) {
 				ParseTokenAsFloat(tok[4]),
 				ParseTokenAsFloat(tok[5]),
 				ParseTokenAsFloat(tok[6])));
-	} else if (!strcmp(cs, "double") || !strcmp(cs, "Number") || !strcmp(cs, "Float") || !strcmp(cs, "FieldOfView") || !strcmp(cs, "UnitScaleFactor")) {
+	} else if (!strcmp(cs, "double") || !strcmp(cs, "Number") || !strcmp(cs, "Float") || !strcmp(cs, "float") || !strcmp(cs, "FieldOfView") || !strcmp(cs, "UnitScaleFactor")) {
 		return new TypedProperty<float>(ParseTokenAsFloat(tok[4]));
 	}
 
@@ -168,11 +168,19 @@ PropertyTable::PropertyTable(const ElementPtr element, const PropertyTable *temp
 		}
 
 		LazyPropertyMap::const_iterator it = lazyProps.find(name);
+
 		if (it != lazyProps.end()) {
 			DOMWarning("duplicate property name, will hide previous value: " + name, v.second);
 			continue;
 		}
 
+		if (it->second == nullptr) {
+			print_error("skipped invalid element insertion for " + String(name.c_str()));
+			continue;
+		}
+
+		//print_verbose("storing lazy property: " + String(name.c_str()));
+
 		// since the above checks for duplicates we can be sure to insert the only match here.
 		lazyProps[name] = v.second;
 	}
@@ -187,28 +195,26 @@ PropertyTable::~PropertyTable() {
 
 // ------------------------------------------------------------------------------------------------
 PropertyPtr PropertyTable::Get(const std::string &name) const {
-	PropertyMap::const_iterator it = props.find(name);
-	if (it == props.end()) {
-		// hasn't been parsed yet?
-		LazyPropertyMap::const_iterator lit = lazyProps.find(name);
-		if (lit != lazyProps.end()) {
-			props[name] = ReadTypedProperty(lit->second);
-			it = props.find(name);
 
-			//ai_assert(it != props.end());
+	// check if loaded already - return it.
-		}
+	PropertyMap::const_iterator loaded_property_element = props.find(name);
-
+	if (loaded_property_element != props.end()) {
-		if (it == props.end()) {
+		//print_verbose("Returning conversion for lazy property: " + String(loaded_property_element->first.c_str()));
-			// check property template
+		return loaded_property_element->second;
-			if (templateProps) {
-				return templateProps->Get(name);
-			}
-
-			return nullptr;
-		}
 	}
 
-	return (*it).second;
+	// now load it since we don't have a match
+	LazyPropertyMap::const_iterator unloadedProperty = lazyProps.find(name);
+	if (unloadedProperty != lazyProps.end()) {
+		PropertyPtr loaded_property = ReadTypedProperty(unloadedProperty->second);
+		ERR_FAIL_COND_V_MSG(!loaded_property, nullptr, "[fbx][serious] unable to load typed property");
+
+		//print_verbose("loaded property successfully: " + String(name.c_str()));
+		props.insert(std::make_pair(name, loaded_property));
+		return loaded_property;
+	}
+
+	return nullptr;
 }
 
 DirectPropertyMap PropertyTable::GetUnparsedProperties() const {