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godot/modules/fbx/data/fbx_material.cpp

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Port FBX module from commit 68013d23932688e57b489600f4517dd280edc464 Ports FBX module from 3.2 branch to 4.0 This is the only time the plugin will be updated from 3.2 and marks the final time we do this, from now on we will backport FBX to 3.2 with fixes. Changelog: - fixed crash importing files with buggy format (because of bad newlines in ASCII data, this is yet to be fixed fully) - fixed const correctness with C++/C version change - rewrote material handling to be simpler and better - ports from 3.2 to 4.0 the fbx importer
2020-12-23 06:29:48 +08:00
/*************************************************************************/
/* fbx_material.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
Update copyright statements to 2021 Happy new year to the wonderful Godot community! 2020 has been a tough year for most of us personally, but a good year for Godot development nonetheless with a huge amount of work done towards Godot 4.0 and great improvements backported to the long-lived 3.2 branch. We've had close to 400 contributors to engine code this year, authoring near 7,000 commit! (And that's only for the `master` branch and for the engine code, there's a lot more when counting docs, demos and other first-party repos.) Here's to a great year 2021 for all Godot users 🎆
2021-01-02 03:13:46 +08:00
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
Port FBX module from commit 68013d23932688e57b489600f4517dd280edc464 Ports FBX module from 3.2 branch to 4.0 This is the only time the plugin will be updated from 3.2 and marks the final time we do this, from now on we will backport FBX to 3.2 with fixes. Changelog: - fixed crash importing files with buggy format (because of bad newlines in ASCII data, this is yet to be fixed fully) - fixed const correctness with C++/C version change - rewrote material handling to be simpler and better - ports from 3.2 to 4.0 the fbx importer
2020-12-23 06:29:48 +08:00
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "fbx_material.h"
#include "scene/resources/material.h"
#include "scene/resources/texture.h"
#include "tools/validation_tools.h"
String FBXMaterial::get_material_name() const {
return material_name;
}
void FBXMaterial::set_imported_material(FBXDocParser::Material *p_material) {
material = p_material;
}
void FBXMaterial::add_search_string(String p_filename, String p_current_directory, String search_directory, Vector<String> &texture_search_paths) {
Rename empty() to is_empty()
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if (search_directory.is_empty()) {
Port FBX module from commit 68013d23932688e57b489600f4517dd280edc464 Ports FBX module from 3.2 branch to 4.0 This is the only time the plugin will be updated from 3.2 and marks the final time we do this, from now on we will backport FBX to 3.2 with fixes. Changelog: - fixed crash importing files with buggy format (because of bad newlines in ASCII data, this is yet to be fixed fully) - fixed const correctness with C++/C version change - rewrote material handling to be simpler and better - ports from 3.2 to 4.0 the fbx importer
2020-12-23 06:29:48 +08:00
texture_search_paths.push_back(p_current_directory.get_base_dir().plus_file(p_filename));
} else {
texture_search_paths.push_back(p_current_directory.get_base_dir().plus_file(search_directory + "/" + p_filename));
texture_search_paths.push_back(p_current_directory.get_base_dir().plus_file("../" + search_directory + "/" + p_filename));
}
}
String find_file(const String &p_base, const String &p_file_to_find) {
_Directory dir;
dir.open(p_base);
dir.list_dir_begin();
String n = dir.get_next();
while (n != String()) {
if (n == "." || n == "..") {
n = dir.get_next();
continue;
}
if (dir.current_is_dir()) {
// Don't use `path_to` or the returned path will be wrong.
const String f = find_file(p_base + "/" + n, p_file_to_find);
if (f != "") {
return f;
}
} else if (n == p_file_to_find) {
return p_base + "/" + n;
}
n = dir.get_next();
}
dir.list_dir_end();
return String();
}
// fbx will not give us good path information and let's not regex them to fix them
// no relative paths are in fbx generally they have a rel field but it's populated incorrectly by the SDK.
String FBXMaterial::find_texture_path_by_filename(const String p_filename, const String p_current_directory) {
_Directory dir;
Vector<String> paths;
add_search_string(p_filename, p_current_directory, "", paths);
add_search_string(p_filename, p_current_directory, "texture", paths);
add_search_string(p_filename, p_current_directory, "textures", paths);
add_search_string(p_filename, p_current_directory, "Textures", paths);
add_search_string(p_filename, p_current_directory, "materials", paths);
add_search_string(p_filename, p_current_directory, "mats", paths);
add_search_string(p_filename, p_current_directory, "pictures", paths);
add_search_string(p_filename, p_current_directory, "images", paths);
for (int i = 0; i < paths.size(); i++) {
if (dir.file_exists(paths[i])) {
return paths[i];
}
}
// We were not able to find the texture in the common locations,
// try to find it into the project globally.
// The common textures can be stored into one of those folders:
// res://asset
// res://texture
// res://material
// res://mat
// res://image
// res://picture
//
// Note the folders can also be called with custom names, like:
// res://my_assets
// since the keyword `asset` is into the directory name the textures will be
// searched there too.
dir.open("res://");
dir.list_dir_begin();
String n = dir.get_next();
while (n != String()) {
if (n == "." || n == "..") {
n = dir.get_next();
continue;
}
if (dir.current_is_dir()) {
const String lower_n = n.to_lower();
if (
// Don't need to use plural.
lower_n.find("asset") >= 0 ||
lower_n.find("texture") >= 0 ||
lower_n.find("material") >= 0 ||
lower_n.find("mat") >= 0 ||
lower_n.find("image") >= 0 ||
lower_n.find("picture") >= 0) {
// Don't use `path_to` or the returned path will be wrong.
const String f = find_file(String("res://") + n, p_filename);
if (f != "") {
return f;
}
}
}
n = dir.get_next();
}
dir.list_dir_end();
return "";
}
template <class T>
T extract_from_prop(FBXDocParser::PropertyPtr prop, const T &p_default, const std::string &p_name, const String &p_type) {
ERR_FAIL_COND_V_MSG(prop == nullptr, p_default, "invalid property passed to extractor");
const FBXDocParser::TypedProperty<T> *val = dynamic_cast<const FBXDocParser::TypedProperty<T> *>(prop);
ERR_FAIL_COND_V_MSG(val == nullptr, p_default, "The FBX is corrupted, the property `" + String(p_name.c_str()) + "` is a `" + String(typeid(*prop).name()) + "` but should be a " + p_type);
// Make sure to not lost any eventual opacity.
return val->Value();
}
Ref<StandardMaterial3D> FBXMaterial::import_material(ImportState &state) {
ERR_FAIL_COND_V(material == nullptr, nullptr);
const String p_fbx_current_directory = state.path;
Ref<StandardMaterial3D> spatial_material;
spatial_material.instance();
// read the material file
// is material two sided
// read material name
print_verbose("[material] material name: " + ImportUtils::FBXNodeToName(material->Name()));
material_name = ImportUtils::FBXNodeToName(material->Name());
for (const std::pair<std::string, const FBXDocParser::Texture *> iter : material->Textures()) {
const uint64_t texture_id = iter.second->ID();
const std::string &fbx_mapping_name = iter.first;
const FBXDocParser::Texture *fbx_texture_data = iter.second;
const String absolute_texture_path = iter.second->FileName().c_str();
const String texture_name = absolute_texture_path.get_file();
const String file_extension = absolute_texture_path.get_extension().to_upper();
const String debug_string = "texture id: " + itos(texture_id) + " texture name: " + String(iter.second->Name().c_str()) + " mapping name: " + String(fbx_mapping_name.c_str());
// remember errors STILL need this string at the end for when you aren't in verbose debug mode :) they need context for when you're not verbose-ing.
print_verbose(debug_string);
const String file_extension_uppercase = file_extension.to_upper();
if (fbx_transparency_flags.count(fbx_mapping_name) > 0) {
// just enable it later let's make this fine-tuned.
spatial_material->set_transparency(BaseMaterial3D::TRANSPARENCY_ALPHA);
}
Rename empty() to is_empty()
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ERR_CONTINUE_MSG(file_extension.is_empty(), "your texture has no file extension so we had to ignore it, let us know if you think this is wrong file an issue on github! " + debug_string);
Port FBX module from commit 68013d23932688e57b489600f4517dd280edc464 Ports FBX module from 3.2 branch to 4.0 This is the only time the plugin will be updated from 3.2 and marks the final time we do this, from now on we will backport FBX to 3.2 with fixes. Changelog: - fixed crash importing files with buggy format (because of bad newlines in ASCII data, this is yet to be fixed fully) - fixed const correctness with C++/C version change - rewrote material handling to be simpler and better - ports from 3.2 to 4.0 the fbx importer
2020-12-23 06:29:48 +08:00
ERR_CONTINUE_MSG(fbx_texture_map.count(fbx_mapping_name) <= 0, "This material has a texture with mapping name: " + String(fbx_mapping_name.c_str()) + " which is not yet supported by this importer. Consider opening an issue so we can support it.");
ERR_CONTINUE_MSG(
file_extension_uppercase != "PNG" &&
file_extension_uppercase != "JPEG" &&
file_extension_uppercase != "JPG" &&
file_extension_uppercase != "TGA" &&
file_extension_uppercase != "WEBP" &&
file_extension_uppercase != "DDS",
"The FBX file contains a texture with an unrecognized extension: " + file_extension_uppercase);
print_verbose("Getting FBX mapping mode for " + String(fbx_mapping_name.c_str()));
// get the texture map type
const StandardMaterial3D::TextureParam mapping_mode = fbx_texture_map.at(fbx_mapping_name);
print_verbose("Set FBX mapping mode to " + get_texture_param_name(mapping_mode));
Ref<Texture> texture;
print_verbose("texture mapping name: " + texture_name);
if (state.cached_image_searches.has(texture_name)) {
texture = state.cached_image_searches[texture_name];
} else {
String path = find_texture_path_by_filename(texture_name, p_fbx_current_directory);
Rename empty() to is_empty()
2020-12-15 20:04:21 +08:00
if (!path.is_empty()) {
Port FBX module from commit 68013d23932688e57b489600f4517dd280edc464 Ports FBX module from 3.2 branch to 4.0 This is the only time the plugin will be updated from 3.2 and marks the final time we do this, from now on we will backport FBX to 3.2 with fixes. Changelog: - fixed crash importing files with buggy format (because of bad newlines in ASCII data, this is yet to be fixed fully) - fixed const correctness with C++/C version change - rewrote material handling to be simpler and better - ports from 3.2 to 4.0 the fbx importer
2020-12-23 06:29:48 +08:00
Ref<Texture2D> image_texture = ResourceLoader::load(path);
ERR_CONTINUE(image_texture.is_null());
texture = image_texture;
state.cached_image_searches.insert(texture_name, texture);
print_verbose("Created texture from loaded image file.");
} else if (fbx_texture_data != nullptr && fbx_texture_data->Media() != nullptr && fbx_texture_data->Media()->IsEmbedded()) {
// This is an embedded texture. Extract it.
Ref<Image> image;
//image.instance(); // oooo double instance bug? why make Image::_png_blah call
const String extension = texture_name.get_extension().to_upper();
if (extension == "PNG") {
// The stored file is a PNG.
image = Image::_png_mem_loader_func(fbx_texture_data->Media()->Content(), fbx_texture_data->Media()->ContentLength());
ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded PNG image load fail.");
} else if (
extension == "JPEG" ||
extension == "JPG") {
// The stored file is a JPEG.
image = Image::_jpg_mem_loader_func(fbx_texture_data->Media()->Content(), fbx_texture_data->Media()->ContentLength());
ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded JPEG image load fail.");
} else if (extension == "TGA") {
// The stored file is a TGA.
image = Image::_tga_mem_loader_func(fbx_texture_data->Media()->Content(), fbx_texture_data->Media()->ContentLength());
ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded TGA image load fail.");
} else if (extension == "WEBP") {
// The stored file is a WEBP.
image = Image::_webp_mem_loader_func(fbx_texture_data->Media()->Content(), fbx_texture_data->Media()->ContentLength());
ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded WEBP image load fail.");
// } else if (extension == "DDS") {
// // In this moment is not possible to extract a DDS from a buffer, TODO consider add it to godot. See `textureloader_dds.cpp::load().
// // The stored file is a DDS.
} else {
ERR_CONTINUE_MSG(true, "The embedded image with extension: " + extension + " is not yet supported. Open an issue please.");
}
Ref<ImageTexture> image_texture;
image_texture.instance();
image_texture->create_from_image(image);
texture = image_texture;
// TODO: this is potentially making something with the same name have a match incorrectly USE FBX ID as Hash. #fuck it later.
state.cached_image_searches[texture_name] = texture;
print_verbose("Created texture from embedded image.");
} else {
ERR_CONTINUE_MSG(true, "The FBX texture, with name: `" + texture_name + "`, is not found into the project nor is stored as embedded file. Make sure to insert the texture as embedded file or into the project, then reimport.");
}
}
spatial_material->set_texture(mapping_mode, texture);
}
if (spatial_material.is_valid()) {
spatial_material->set_name(material_name);
}
/// ALL below is related to properties
This stops using FBXPropertyTable as a pointer. The base object will inherit the property table, for every FBX object, if it doesn't exist it will be ignored. The previous code was dangerous and not simple to understand, this makes the code simpler and should result in no leaks with PropertyTable. Features/Fixes: Adds ability for multiple millions of polygons to be loaded. Fixes memory leaks with tokens Fixes memory leaks with property table Fixes loading some corrupt files Fixes meshes not having a unique name to the mesh node. Opens up loading for two more versions: 7100 and 7200, up to 2020. Preliminary support for Cinema4D files in parser now, before this was not possible it would cause memory corruption, which is gone now. FBXProperties not being pointers presented simpler challenges in the long run also, fixed a bunch of bugs.
2021-03-30 09:33:06 +08:00
for (FBXDocParser::LazyPropertyMap::value_type iter : material->GetLazyProperties()) {
Port FBX module from commit 68013d23932688e57b489600f4517dd280edc464 Ports FBX module from 3.2 branch to 4.0 This is the only time the plugin will be updated from 3.2 and marks the final time we do this, from now on we will backport FBX to 3.2 with fixes. Changelog: - fixed crash importing files with buggy format (because of bad newlines in ASCII data, this is yet to be fixed fully) - fixed const correctness with C++/C version change - rewrote material handling to be simpler and better - ports from 3.2 to 4.0 the fbx importer
2020-12-23 06:29:48 +08:00
const std::string name = iter.first;
if (name.empty()) {
continue;
}
PropertyDesc desc = PROPERTY_DESC_NOT_FOUND;
if (fbx_properties_desc.count(name) > 0) {
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_map.count(name) > 0) {
continue; // safe to ignore it's a texture mapping.
}
}
if (desc == PROPERTY_DESC_IGNORE) {
//WARN_PRINT("[Ignored] The FBX material parameter: `" + String(name.c_str()) + "` is ignored.");
continue;
} else {
print_verbose("FBX Material parameter: " + String(name.c_str()));
// Check for Diffuse material system / lambert materials / legacy basically
if (name == "Diffuse" && !warning_non_pbr_material) {
ValidationTracker::get_singleton()->add_validation_error(state.path, "Invalid material settings change to Ai Standard Surface shader, mat name: " + material_name.c_escape());
warning_non_pbr_material = true;
}
}
// 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.");
This stops using FBXPropertyTable as a pointer. The base object will inherit the property table, for every FBX object, if it doesn't exist it will be ignored. The previous code was dangerous and not simple to understand, this makes the code simpler and should result in no leaks with PropertyTable. Features/Fixes: Adds ability for multiple millions of polygons to be loaded. Fixes memory leaks with tokens Fixes memory leaks with property table Fixes loading some corrupt files Fixes meshes not having a unique name to the mesh node. Opens up loading for two more versions: 7100 and 7200, up to 2020. Preliminary support for Cinema4D files in parser now, before this was not possible it would cause memory corruption, which is gone now. FBXProperties not being pointers presented simpler challenges in the long run also, fixed a bunch of bugs.
2021-03-30 09:33:06 +08:00
const FBXDocParser::PropertyTable *tbl = material;
Port FBX module from commit 68013d23932688e57b489600f4517dd280edc464 Ports FBX module from 3.2 branch to 4.0 This is the only time the plugin will be updated from 3.2 and marks the final time we do this, from now on we will backport FBX to 3.2 with fixes. Changelog: - fixed crash importing files with buggy format (because of bad newlines in ASCII data, this is yet to be fixed fully) - fixed const correctness with C++/C version change - rewrote material handling to be simpler and better - ports from 3.2 to 4.0 the fbx importer
2020-12-23 06:29:48 +08:00
FBXDocParser::PropertyPtr prop = tbl->Get(name);
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()) {
// Done here so if no data no material is created.
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;
}
if (vector_value && !real_value) {
if (vector_value->Value() == Vector3(0, 0, 0) && !real_value) {
continue;
}
}
switch (desc) {
case PROPERTY_DESC_ALBEDO_COLOR: {
if (vector_value) {
const Vector3 &color = vector_value->Value();
// Make sure to not lost any eventual opacity.
if (color != Vector3(0, 0, 0)) {
Color c = Color();
c[0] = color[0];
c[1] = color[1];
c[2] = color[2];
spatial_material->set_albedo(c);
}
} else if (real_value) {
print_error("albedo is unsupported format?");
}
} break;
case PROPERTY_DESC_TRANSPARENT: {
if (real_value) {
const real_t opacity = real_value->Value();
if (opacity < (1.0 - CMP_EPSILON)) {
Color c = spatial_material->get_albedo();
c.a = opacity;
spatial_material->set_albedo(c);
spatial_material->set_transparency(BaseMaterial3D::TRANSPARENCY_ALPHA);
spatial_material->set_depth_draw_mode(BaseMaterial3D::DEPTH_DRAW_OPAQUE_ONLY);
}
} 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_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: {
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: {
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: {
if (real_value) {
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: {
// meaning is that approx equal to zero is disabled not actually zero. ;)
if (real_value && Math::is_equal_approx(real_value->Value(), 0.0f)) {
print_verbose("clearcoat real value: " + rtos(real_value->Value()));
spatial_material->set_clearcoat_gloss(1.0 - real_value->Value());
} else {
print_error("unsupported value type for clearcoat gloss");
}
} break;
case PROPERTY_DESC_EMISSIVE: {
if (real_value && Math::is_equal_approx(real_value->Value(), 0.0f)) {
print_verbose("Emissive real value: " + rtos(real_value->Value()));
spatial_material->set_emission_energy(real_value->Value());
} else if (vector_value && !vector_value->Value().is_equal_approx(Vector3(0, 0, 0))) {
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);
}
} break;
case PROPERTY_DESC_EMISSIVE_COLOR: {
if (vector_value && !vector_value->Value().is_equal_approx(Vector3(0, 0, 0))) {
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);
} else {
print_error("unsupported value type for emissive color");
}
} break;
case PROPERTY_DESC_NOT_FOUND:
case PROPERTY_DESC_IGNORE:
break;
default:
break;
}
}
return spatial_material;
}
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